3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid
3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid (CAS 96-93-5), with the molecular formula H2NC6H2(OH)(NO2)SO3H and a molecular weight of 234.19 g/mol, is a key organic building block. This compound is primarily utilised in chemical synthesis, serving as an intermediate in the production of various organic compounds. Its structure, featuring amino, hydroxyl, nitro, and sulfonic acid groups, makes it a versatile reagent for complex chemical transformations.

Organic Synthesis Intermediate
This compound serves as a crucial intermediate in organic synthesis. Its functional groups allow for diverse reactions, enabling the construction of more complex molecules in laboratory settings and industrial processes.
Building Block for Specialty Chemicals
As an organic building block, it is employed in the synthesis of specialty chemicals. Its unique structural features are valuable for developing new materials and compounds with specific properties.
Reagent in Chemical Research
Researchers utilise 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid in exploratory chemical research. Its reactivity profile makes it a useful component in developing novel synthetic pathways and methodologies.
| Molecular weight | 234.19 |
|---|---|
| Linear formula | H2NC6H2(OH)(NO2)SO3H |
| Assay | 97% |
| Melting point | 325 °C (dec.)(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2585 8/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid used for?
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This compound is used as an intermediate in organic synthesis and as a building block for specialty chemicals and in chemical research.
What is the CAS number and molecular formula for 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid?
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The CAS number is 96-93-5 and the molecular formula is H2NC6H2(OH)(NO2)SO3H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling recommendations for this chemical?
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This compound is classified as Danger, causing severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection (N100 or P3 filters), must be used. Handle with extreme care in a well-ventilated area.
Is 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid controlled or scheduled?
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The provided data does not indicate that this substance is controlled or scheduled.
How is 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid packed, shipped, and exported?
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This chemical is shipped under UN 2585, Hazard Class 8, Packing Group 3. Tech Serve Solutions exports fine chemicals globally.
How can I request a sample or quote for 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid?
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Please contact our sales team via the website or direct email to request a sample or a formal quotation.
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