ACID BLUE 1
ACID BLUE 1 is a cosmetic ingredient classified as Hair Dyeing. Also known as CAS 129-17-9. It is regulated in 14 markets including UAE, Bahrain, European Union.
Also Known As
- CAS Number
- 129-17-9
Market Overview — 29 Markets
Detailed Regulations
Europe4 regulations
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: EC 1223/2009 Annex II
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: EC 1223/2009 Annex IV
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045) when used as a substance in hair dye products
- CAS
- 129-17-9
Source: UK retained EC 1223/2009 Annex II
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- 42045
Source: UK retained EC 1223/2009 Annex IV
AmericasNo restrictions
No specific restrictions for ACID BLUE 1 in United States, California, Maryland, Washington, Canada, Brazil.
East Asia & OceaniaNo restrictions
No specific restrictions for ACID BLUE 1 in South Korea, Japan, Taiwan, Australia.
ASEAN6 regulations
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4- disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt
- CAS
- 129-17-9
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
GCC12 regulations
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
- Chemical name
- Ethanaminium, N-(4-((4-diethylamino)phenyl)(2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, sodium salt (Acid Blue 1; CI 42045)
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- Ammonium, (4-(alpha-(p-(diethylamino)phenyl)-2,4-disulfobenzylidene)-2,5-cyclohexadien-1-ylidene)diethyl-, hydroxide, monosodium salt
- CAS
- 129-17-9
- Product type
- Not to be used in products applied on mucous membranes
- Color Index
- CI 42045
Source: GSO 1943:2024 (based on EU 1223/2009 IV)
EAEUNo restrictions
No specific restrictions for ACID BLUE 1 in Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan.
Frequently Asked Questions
Is ACID BLUE 1 banned in any country?
Yes, ACID BLUE 1 is banned in UAE, Bahrain, European Union, Indonesia, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, United Kingdom, Vietnam. Always check current regulations before formulating products for these markets.
What are the restrictions on ACID BLUE 1 in cosmetics?
ACID BLUE 1 is restricted or has conditions of use in UAE, Bahrain, European Union, Kuwait, Oman, Qatar, Saudi Arabia, 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 1 in cosmetics?
ACID BLUE 1 is regulated in 14 markets. It is banned in UAE, Bahrain, European Union, Indonesia, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, United Kingdom, Vietnam. It has restrictions in UAE, Bahrain, European Union, Kuwait, Oman, Qatar, Saudi Arabia, United Kingdom. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.
Screen ACID BLUE 1 with your full formula
Paste your entire ingredient list and get a compliance report across 26 markets — free, no signup.
Check Ingredients FreeThis 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.