DIRECT BLACK 51
DIRECT BLACK 51 is a cosmetic ingredient classified as Hair Dyeing. Also known as CAS 3442-21-5. It is regulated in 16 markets including UAE, Bahrain, European Union.
Also Known As
- CAS Number
- 3442-21-5, 34977-63-4
Market Overview — 29 Markets
Detailed Regulations
Europe2 regulations
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: EC 1223/2009 Annex II
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts, when used as a substance in hair dye products
- CAS
- 3442-21-5/34977-63-4
Source: UK retained EC 1223/2009 Annex II
AmericasNo restrictions
No specific restrictions for DIRECT BLACK 51 in United States, California, Maryland, Washington, Canada, Brazil.
East Asia & Oceania2 regulations
- Chemical name
- Direct Black 51
Source: MFDS Korea Cosmetics Regulation
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts不得使用於染髮用途化粧品
- CAS
- 3442-21-5/ 34977-63-4
Source: TFDA Cosmetics Regulations
ASEAN6 regulations
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1- naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21- 5/34977-63-4
- Product type
- hair dye products
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
GCC6 regulations
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
- Chemical name
- 3(or5)-[[4-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]salicylic acid and its salts
- CAS
- 3442-21-5 / 34977-63-4
- Product type
- hair dye products
Source: GSO 1943:2024 (based on EU 1223/2009 II)
EAEUNo restrictions
No specific restrictions for DIRECT BLACK 51 in Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan.
Frequently Asked Questions
Is DIRECT BLACK 51 banned in any country?
Yes, DIRECT BLACK 51 is banned in UAE, Bahrain, European Union, Indonesia, South Korea, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, Taiwan, United Kingdom, Vietnam. Always check current regulations before formulating products for these markets.
What are the restrictions on DIRECT BLACK 51 in cosmetics?
DIRECT BLACK 51 is banned in UAE, Bahrain, European Union, Indonesia, South Korea, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, Taiwan, United Kingdom, Vietnam and has no specific restrictions in other tracked markets.
Can I use DIRECT BLACK 51 in cosmetics?
DIRECT BLACK 51 is regulated in 16 markets. It is banned in UAE, Bahrain, European Union, Indonesia, South Korea, Kuwait, Malaysia, Oman, Philippines, Qatar, Saudi Arabia, Singapore, Thailand, Taiwan, United Kingdom, Vietnam. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.
Screen DIRECT BLACK 51 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.