2-NITROTOLUENE-4-SULFONIC ACID
- CAS NO.：97-06-3
- Empirical Formula: C7H7NO5S
- Molecular Weight: 217.2
- MDL number: MFCD00035917
- EINECS: 202-556-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is 2-NITROTOLUENE-4-SULFONIC ACID?
Physical properties
2-Nitrotoluene-4-sulfonic Acid, crystallizes from water as pale yellow hygroscopic needles of the dihydrate.
The Uses of 2-NITROTOLUENE-4-SULFONIC ACID
The total liquor of 2-Nitrotoluene-4-sulfonic Acid is hydrogenated in situ to give o-toluidine-4-sulfonic acid [618-03-1]. Isolated 2-nitrotoluene-4- sulfonic acid may be converted to 2-nitro-p-toluenesulfonyl chloride [54090-41-4], but the preferred process for [54090-41-4] is chlorosulfonation of 2-nitrotoluene. Reaction of [54090-41-4] with dimethylamine followed by reduction gives 3-amino-4-methyl-N,N-dimethylbenzenesulfonamide [6331-68-6] for use as an azoic diazo component.
Production Methods
2-Nitrotoluene is sulfonated by heating with 25 % oleum at 80 ℃ for 3 h, then quenching and liming to give a neutral solution of the sodium salt of 2-Nitrotoluene-4-sulfonic Acid.
Properties of 2-NITROTOLUENE-4-SULFONIC ACID
| Melting point: | 92°C |
| Boiling point: | 500°C (rough estimate) |
| Density | 1.6040 (rough estimate) |
| refractive index | 1.6100 (estimate) |
| pka | -1.04±0.50(Predicted) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-3-nitro- (97-06-3) |
Safety information for 2-NITROTOLUENE-4-SULFONIC ACID
Computed Descriptors for 2-NITROTOLUENE-4-SULFONIC ACID
2-NITROTOLUENE-4-SULFONIC ACID manufacturer
Aarti Organic
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