A3467612
2,5-Diaminotoluene , >98.0%(GC) , 95-70-5
CAS NO.：95-70-5
Empirical Formula: C7H10N2
Molecular Weight: 122.17
MDL number: MFCD00035779
EINECS: 202-442-1
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 64°C |
| Boiling point: | 273°C |
| Density | 1.0343 (rough estimate) |
| vapor pressure | 0.454Pa at 25℃ |
| refractive index | 1.5103 (estimate) |
| solubility | Soluble in water |
| form | powder to crystal |
| pka | 5.98±0.10(Predicted) |
| color | White to Brown |
| Water Solubility | 500g/L at 20℃ |
| Stability: | Hygroscopic |
| LogP | -0.321 at 25℃ |
| CAS DataBase Reference | 95-70-5(CAS DataBase Reference) |
| IARC | 3 (Vol. 16, Sup 7) 1987 |
| NIST Chemistry Reference | 1,4-Benzenediamine, 2-methyl-(95-70-5) |
| EPA Substance Registry System | Toluene-2,5-diamine (95-70-5) |
Description and Uses
p-Toluylenediamine is a hair dye associated with contact dermatitis in hairdressers. Cross reactivity is observed with PPD.
2,5-Toluenediamine is used primarily in hair dye formulations
as one of the major oxidation dye precursors. It is
also used in the synthesis of saframine, a family of dyes used
as biological stain, and may be present in indelible ink,
antifreeze, and nail polish.
As may be expected from its use in hair dye formulations,
hairdressers and barbers may be exposed to 2,5-TDA.
Workers in the dye manufacturing industry may also be
exposed.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P280-P301+P312-P302+P352-P305+P351+P338 |
| Hazard Codes | T,N |
| Risk Statements | 20/21-25-43-51/53 |
| Safety Statements | 24-37-45-61 |
| RIDADR | 2811 |
| RTECS | XS9700000 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| HS Code | 2921511990 |
| Hazardous Substances Data | 95-70-5(Hazardous Substances Data) |
