2-NITROBENZENESULFONIC ACID
- CAS NO.:80-82-0
- Empirical Formula: C6H5NO5S
- Molecular Weight: 203.17
- MDL number: MFCD00053617
- EINECS: 201-311-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-21 09:28:55
What is 2-NITROBENZENESULFONIC ACID?
Chemical properties
Pale yellow crystals. Melting point 70 ℃.
The Uses of 2-NITROBENZENESULFONIC ACID
Used as an intermediates.
Production Methods
2-Chloronitrobenzene is reacted with sodium disulfide at 80 ℃ in aqueous ethanol to give 2,2' -dinitrodiphenyl disulfide, which is isolated and treated with chlorine in mineral acid medium in the presence of nitric acid to produce 2-nitrobenzenesulfonyl chloride by oxidative chlorination. This is hydrolyzed in dilute alkali, and the liquor of the resulting 2-Nitrobenzenesulfonic Acid is reduced with Fe – acid or H2 – catalyst to orthanilic acid [88-21-1], an important diazo component in reactive dyes for cotton.
Synthesis
2-Nitrobenzenesulfonic Acid is synthesized by reacting o-Nitrobenzenesulfonyl chloride with Concentrated ammonia solution in glacial acetic acid
Properties of 2-NITROBENZENESULFONIC ACID
Density | 1.637 |
form | powder to crystal |
pka | -1.43±0.18(Predicted) |
color | Light orange to Yellow to Green |
CAS DataBase Reference | 80-82-0(CAS DataBase Reference) |
Safety information for 2-NITROBENZENESULFONIC ACID
Computed Descriptors for 2-NITROBENZENESULFONIC ACID
New Products
4-Fluorophenylacetic acid 4-Methylphenylacetic acid N-Boc-D-alaninol N-BOC-D/L-ALANINOL Tert-butyl bis(2-chloroethyl)carbamate 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin- 2(1H)-one Furan-2,5-Dicarboxylic Acid Tropic acid S-2-CHLORO PROPIONIC ACID ETHYL ISOCYANOACETATE 2-Bromo-1,3-Bis(Dimethylamino)Trimethinium Hexafluorophosphate (6-METHYL-[1,3]DITHIOLO[4,5-b]QUINOXALIN-2-ONE INDAZOLE-3-CARBOXYLIC ACID 4-IODO BENZOIC ACID (2-Hydroxyphenyl)acetonitrile 4-Bromopyrazole 5,6-Dimethoxyindanone 2-(Cyanocyclohexyl)acetic acid 4-methoxy-3,5-dinitropyridine 2-aminopropyl benzoate hydrochloride 1-(4-(aminomethyl)benzyl)urea hydrochloride diethyl 2-(2-((tertbutoxycarbonyl)amino) ethyl)malonate tert-butyl 4- (ureidomethyl)benzylcarbamate Ethyl-2-chloro((4-methoxyphenyl)hydrazono)acetateRelated products of tetrahydrofuran
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