ACID BLUE 9 AMMONIUM SALT

RestrictedCAS 2650-18-218 regulations across 10 markets

ACID BLUE 9 AMMONIUM SALT is a cosmetic ingredient classified as Hair Dyeing. Also known as CAS 2650-18-2. It is regulated in 10 markets including UAE, Bahrain, Brazil.

Also Known As

CAS Number
6371-85-3, 2650-18-2, 37307-56-5, 3844-45-9
Color Index
CI 42090

Market Overview — 29 Markets

European Union2
United Kingdom2
United States
California
Maryland
Washington
Canada
Brazil1
South Korea
Japan
Taiwan1
Australia
Singapore
Malaysia
Thailand
Indonesia
Vietnam
Philippines
UAE2
Saudi Arabia2
Qatar2
Oman2
Kuwait2
Bahrain2
Russia
Belarus
Kazakhstan
Armenia
Kyrgyzstan

Detailed Regulations

Europe4 regulations
European UnionRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

Source: EC 1223/2009 Annex III

European UnionRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

Source: EC 1223/2009 Annex IV

United KingdomRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts ; (CI 42090)
CAS
3844-45-9 / 2650-18-2 / 68921-42-6
Max concentration
0,5 %
Product type
Hair dye substance in non-oxidative hair dye products
Conditions of use
Max: 0,5 %

Source: UK retained EC 1223/2009 Annex III

United KingdomRestrictedAnnex IV #63
Chemical name
Benzene-methanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino) phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
Other conditions
Purity criteria as set out in Commission Directive 95/45/EC (E 133)
Color Index
42090

Source: UK retained EC 1223/2009 Annex IV

Americas1 regulation
BrazilRestrictedAnnex RDC_628 #CI_42090
Product type
products_in_general
Conditions of use
Application fields: products_in_general
Color Index
CI 42090

Source: ANVISA RDC 628

East Asia & Oceania1 regulation
TaiwanRestrictedAnnex Restricted Ingredients List #132
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (CI 42090)
CAS
3844-45-9/ 2650-18-2/ 68921-42-6
Max concentration
0.5%
Product type
Non-oxidative hair dye products

Source: TFDA Cosmetics Regulations

ASEANNo restrictions

No specific restrictions for ACID BLUE 9 AMMONIUM SALT in Singapore, Malaysia, Thailand, Indonesia, Vietnam, Philippines.

GCC12 regulations
UAERestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

UAERestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

Saudi ArabiaRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

Saudi ArabiaRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

QatarRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

QatarRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

OmanRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

OmanRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

KuwaitRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

KuwaitRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

BahrainRestrictedAnnex III #190
Chemical name
Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl-[(3-sulfophenyl)-methyl]-amino]-phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo, inner salts, disodium salt and its ammonium and aluminium salts (15); Acid Blue Acid Blue 9 Ammonium salt; CI 42090. (see note 17)
CAS
3844-45-9 - 2650-18-2 - 68921-42-6
Max concentration
0.5%
Product type
Hair dye substance in non-oxidative hair dye products

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

BahrainRestrictedAnnex IV #63
Chemical name
Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner salt, disodium salt
CAS
2650-18-2; 37307-56-5; 3844-45-9
Conditions of use
Purity criteria as sset out in Commission Directive 95/45/EC (E 133)
Color Index
CI 42090

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

EAEUNo restrictions

No specific restrictions for ACID BLUE 9 AMMONIUM SALT in Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan.

Frequently Asked Questions

Is ACID BLUE 9 AMMONIUM SALT banned in any country?

ACID BLUE 9 AMMONIUM SALT is not banned in any of the 26 markets tracked by Formpli. However, it may be subject to restrictions or conditions of use in some markets.

What are the restrictions on ACID BLUE 9 AMMONIUM SALT in cosmetics?

ACID BLUE 9 AMMONIUM SALT is restricted or has conditions of use in UAE, Bahrain, Brazil, European Union, Kuwait, Oman, Qatar, Saudi Arabia, Taiwan, United Kingdom. Restrictions may include maximum concentration limits, product type limitations, or mandatory labeling requirements. See the detailed regulations above for specifics.

Can I use ACID BLUE 9 AMMONIUM SALT in cosmetics?

ACID BLUE 9 AMMONIUM SALT is regulated in 10 markets. It has restrictions in UAE, Bahrain, Brazil, European Union, Kuwait, Oman, Qatar, Saudi Arabia, Taiwan, United Kingdom. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.

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This information is for reference only and does not constitute legal or regulatory advice. Regulations change — always verify with official sources and consult a regulatory specialist before exporting cosmetic products. Data sourced from EU COSING, US FDA, Health Canada, MHLW Japan, MFDS Korea, ASEAN ACD, GCC SFDA, TGA Australia, ANVISA Brazil, EAEU TR CU, and Taiwan TFDA.