o-Arsanilic acid
o-Arsanilic acid (CAS 2045-00-3), molecular formula H2NC6H4AsO3H2, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis 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
- 2-Aminobenzenearsonic acid
| Molecular weight | 217.05 |
|---|---|
| Linear formula | H2NC6H4AsO3H2 |
| Assay | 98% |
| Solubility | 1 M NH4OH: soluble50 mg/mL, clear to turbid (orange-brown) |
| Application | o-Arsanilic acid was used in the determination of total arsenic in urine samples using nickel and palladium as matrix modifiers1. It was used to study the inhibition of the binding of labeled anti-cross-reactive idiotype(CRI) preparations to a CRI+ hybridoma proteins by haptens in mice2. |
| Melting point | 154-155 °C(lit.) |
Hazard statements
- H301Toxic if swallowed
- H331Toxic if inhaled
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
- P501Dispose of contents and container per local regulations
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3465 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/25-50/53 |
| Safety statements (S) | 20/21-28-45-60-61 |
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 o-Arsanilic acid?
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o-Arsanilic acid (CAS 2045-00-3), molecular formula H2NC6H4AsO3H2, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of o-Arsanilic acid does Tech Serve Solutions supply?
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Tech Serve Solutions supplies o-Arsanilic 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 o-Arsanilic acid?
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o-Arsanilic acid has CAS number 2045-00-3 and molecular formula H2NC6H4AsO3H2. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for o-Arsanilic 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 o-Arsanilic 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 o-Arsanilic acid be stored?
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Store o-Arsanilic 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 o-Arsanilic acid used for?
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o-Arsanilic acid is used in chemical synthesis 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 o-Arsanilic 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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