
PNTOSA is a very important intermediate used with other intermediates to manufacture quality products. Also known as 4-Nitro-2-toluenesulfonic acid or 5-Nitro-o-toluenesulfonic acid.
Common Uses
Dyes intermediate, chemical synthesis, pharmaceutical intermediates
| Property | PNTOSA |
|---|---|
| CAS Number | 121-03-9 |
| Molecular Formula | C7H7NO5S |
| Molecular Weight | 217.21 |
| Synonyms | 4-Nitro-2-toluenesulfonic acid, 5-Nitro-o-toluenesulfonic acid, PNTOS |
| Density | 1.547 g/cm³ |
| Melting Point | 135°C |
| EINECS | 204-445-3 |