6-METHOXY-2-METHYLAMINO-3-AMINOPYRIDINE HCL

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: EC 1223/2009 Annex III

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Product type

(a) Hair dye substance in oxidative hair dye products

Conditions of use

(a) To be printed on the label: The mixing ratio. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “ black henna ” tattoos may increase your risk of allergy. Do not colour your hair if: you have a rash on your face or sensitive, irritated and damaged scalp, you have ever experienced any reaction after colouring your hair, you have experienced a reaction to a temporary “ black henna ” tattoo in the past. Hair colorants can cause severe allergic reactions.

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum concentration applied to hair or eyelashes must not exceed 0,68 % calculated as free base (1,0 % as dihydrochloride).

Source: UK retained EC 1223/2009 Annex III

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0,68 % as free base (1,0 % as dihydrochloride)

Product type

(b) Hair dye substance in non-oxidative hair dye products

Conditions of use

Max: (b) 0,68 % as free base (1,0 % as dihydrochloride) (b) Can cause allergic reaction

Other conditions

For (a) (b) and (c): Do not use with nitrosating agents Maximum nitrosamine content: 50 μg /kg Keep in nitrite-free containers

Source: UK retained EC 1223/2009 Annex III

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Product type

(c) Products intended for colouring eyelashes

Conditions of use

(c) To be printed on the label: The mixing ratio. For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “ black henna ” tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: has a rash on the face or sensitive, irritated and damaged scalp, has experienced any reaction after colouring hair or eyelashes, has experienced a reaction to a temporary “ black henna ” tattoo in the past. Rinse eyes immediately if product comes into contact with them.

Other conditions

(c) For professional use only.

Source: UK retained EC 1223/2009 Annex III

Chemical name

6-Methoxy-2-methylamino-3-aminopyridine HCL

Source: MFDS Korea Cosmetics Regulation

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8/ 83732-72-3

Max concentration

(a)0.68% (以free base計) 1% (以dihydrochloride計) (b)0.68% (以free base計) 1% (以dihydrochloride計)

Product type

(a)Oxidative hair dye products (b)Non-oxidative hair dye products

Conditions of use

Prohibited to use with nitrosating agents; Maximum nitrosamine content: 50 mg/kg(ppb); Must be stored in a nitrite free container.

Source: TFDA Cosmetics Regulations

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2- methyl-2,3- pyridinediamine hydrochloride and dihydrochloride salt 6-Methoxy-2-Methylamino-3- Aminopyridine HCl

CAS

90817-34-8 / 83732-72-3

Max concentration

b) 0.68 as free base (1.0 % as dihydrochloride)

Product type

a)Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair Use for dyeing eyelashes and eyebrows is not permitted.

Conditions of use

For (a): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0.68% calculated as free base (1,0 %as dihydrochloride). For (a) and (b): • Do not use with nitrosating agents • Maximum nitrosamine content: 50 μg /kg (21) • Keep in nitrite- free containers The free base and salts of this hair dye ingredient, unless prohibited in Annex II, are permitted for use. The direction for use 'wear suitable gloves' must be included in label or leaflet text. | Label: (a) To be printed on the label: The mixing ratio. 'Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16 Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: -you have a rash on your face or sensitive, irritated and damaged scalp, -you have ever experienced any reaction after colouring your hair, -you have experienced a reaction to a temporary 'black henna'

Source: ASEAN Cosmetic Directive (HSA Dec 2025)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)

Chemical name

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS

90817-34-8 / 83732-72-3

Max concentration

(b) 0.68% as free base (1.0% as dihydrochloride)

Product type

(a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (c) Products intended for colouring eyelashes

Conditions of use

(a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past (b) Can cause allergic reaction (c) To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16.Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after

Other conditions

For (a) and (c): After mixing under oxidative conditions the maximum use concentration applied to hair or eyeslashes must not exceed 0.68% calculated as free base (1.0% as dihydrochloride). For (a) (b) and (c): - Do not use with nitrosating agents - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers (c) For professional use only

Source: GSO 1943:2024 (based on EU 1223/2009 III)