The chemical with CAS number 2835-95-2, also known as 4-amino-2-hydroxytoluene or 5-amino-o-cresol, is a compound primarily used in the formulation of permanent hair dyes. It acts as an oxidative dye coupler (or secondary intermediate) to impart color to hair when mixed with a peroxide developer. It is also used as an intermediate in other organic synthesis and can be found in other dye and pharmaceutical applications.
| CAS Number | 2835-95-2 |
| Chemical Formula | C7H9NO |
| Molecular Weight | 123.15 g/mol |
| Appearance | Off-white crystalline powder |
| Assay (HPLC) | ≥ 99% |
| Melting Point | 159 – 162 °C |
| Water Content | ≤ 0.5% |
| Ash Content | ≤ 0.5% |
| Iron (Fe) | ≤ 20 ppm |
| Packing |
Powder form: 25 Kg HEDP bag with 2 inner liners (5-layer protected packaging) |
| Synonyms |
5-Amino-2-methylphenol, 5-Amino-o-cresol, 3-Hydroxy-4-methylaniline, JAROCOL 2M5AP, 2-Hydroxy-4-aminotoluene, 2-Hydroxy-p-toluidine, 2-Methyl-5-aminophenol, Phenol, 5-amino-2-methyl- |
| Shelf Life |
Up to 24 months from the date of manufacture when stored under recommended conditions. Product stability depends on proper storage. |
| Uses |
Primarily used as a coupler in permanent hair dye formulations to impart color. Also used as an intermediate in the synthesis of dyes for textile applications and finds use in fragrance, flavor, pharmaceutical, soap, and detergent industries. |
