| Product | Para Nitro Toluene Ortho Sulphonic Acid (PNTOSA) |
| Synonyms | Para Nitro Toluene Ortho Sulphonic Acid |
| CAS # | 121-03-9 |
| Molecular Formula | C 7H7SO5N |
| Molecular Weight | 217 |
| Physical Appearance | White Crystal Wet Cake |
| Purity | Min. 82% By Nitrite Value |
| Solubility | 50% Solution In Water Is Clear & Transparent |
| Insoluble | 0.2% Max. |
| Free Acidity | 2% (Max.) As H2SO4 |
