COSMEMASTERS, the first cosmetic ingredient course and community service platform in China, is a gathering place for “ingredient analysis officers”. We are committed to creating a scientific, systematic and professional cosmetic ingredient knowledge system for you, so that you can make less detours on the road of skincare and stand out in the workplace. 6 senior lecturers with backgrounds of top 500 beauty companies and more than 10 years of experience will take you to open a new chapter of cosmetic knowledge!
| COSING Ref No | 31629 |
| INCI name | ACID RED 51 |
| 标准中文名称 | 酸性红 51 |
| INN name | erythrosine |
| Ph. Eur. Name | |
| CAS No | 16423-68-0; 1342-25-2 |
| EC No | 240-474-8 |
| Chem/IUPAC Name / Description | Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxoxanthen-9-yl)benzoate (CI 45430) |
| Restriction | II/1337 (when used as a substance in hair dye products) |
| Function |
COLORANT:
Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light; (precursors of oxidative hair colorants shall be deemed colorants). All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.
HAIR DYEING:
Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, permanent, depending on the length of time the colorant remains on the hair.
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