Sulfanilic acid
Sulfanilic acid (CAS 121-57-3), molecular formula 4-(H2N)C6H4SO3H, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 4-Aminobenzenesulfonic acid,Aniline-4-sulfonic acid
| Molecular weight | 173.19 |
|---|---|
| Linear formula | 4-(H2N)C6H4SO3H |
| Assay | 98.0-102.0% (ACS specification)99% |
| Grade | ACS reagent |
| Melting point | >300 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/38-43 |
| Safety statements (S) | 24-37 |
| Anion traces | chloride (Cl-): ≤0.002%nitrite (NO2-): ≤0.5 ppmsulfate (SO42-): ≤0.01% |
| Ignition residue | ≤0.01% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 Sulfanilic acid?
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Sulfanilic acid (CAS 121-57-3), molecular formula 4-(H2N)C6H4SO3H, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to USP, BP and EP standards.
What grades of Sulfanilic acid does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sulfanilic acid in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Sulfanilic acid?
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Sulfanilic acid has CAS number 121-57-3 and molecular formula 4-(H2N)C6H4SO3H. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Sulfanilic acid?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Sulfanilic acid ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Sulfanilic acid be stored?
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Store Sulfanilic acid in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Sulfanilic acid used for?
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Sulfanilic acid is used in acids & bases applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Sulfanilic acid?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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