HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 918611Generated: October 25, 2026
Hydrochloric Acid → 4-Anilino-3-nitro-5-sulphamyl-benzoic acid
https://huagongshe.com/reaction/918611
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Aniline | HCID 6115 | — |
| Reactant | 4-Chloro-3-nitro-5-sulphamoylbenzoic acid | HCID 89893 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-Anilino-3-nitro-5-sulphamyl-benzoic acid | HCID 21506071 | — |
Reaction Steps
A mixture of 4-chloro-3-nitro-5-sulphamyl-benzoic acid (8.4 g), aniline (8.4 g), and water (40 ml) was stirred at 80°C for 2 hours. After the addition of 1N hydrochloric acid (50 ml) and cooling, the precipitated 4-anilino-3-nitro-5-sulphamyl-benzoic acid was collected by suction, washed with water, and recrystallized from aqueous ethanol. The melting point was 261°-262°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US03971819 |
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| Source dataset | uspto-grants-1976_07 |
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| ORD ID | ord-202e0f6180074915853a15bdc90a0a27 |
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| Source note | uspto-grants-1976_07 |
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