3-(1h-1,2,3-Benzotriazole-5-sulfonamido)benzoic acid CAS 743440-18-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 743440-18-8 |
| Molecular Formula | C13H10N4O4S |
| Molecular Weight | 318.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(1h-1,2,3-Benzotriazole-5-sulfonamido)benzoic acid (CAS 743440-18-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H10N4O4S. Molecular weight: 318.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H10N4O4S |
| Molecular Weight | 318.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related h Standards
- 1H-Benzotriazole-1-methanamine, N,N-bis(2-ethylhexyl)- (CAS 80301-64-0)
- Benzyl benzotriazole-1-carboxylate (CAS 57710-80-2)
- 1-Benzyl-1,2,3-benzotriazole-5-carbonitrile (CAS 1242069-41-5)
- 1-Butyl-1,2,3-benzotriazole-5-carboxylic acid (CAS 120321-66-6)
- 1H-Benzotriazole-6-sulfonyl Chloride (CAS 70938-45-3)
- 1-Propyl-1,2,3-benzotriazole-5-carboxylic acid (CAS 691363-12-9)
- 1-Butyl-1,2,3-benzotriazole-5-carbonitrile (CAS 1403483-83-9)
- 1H-1,2,3-benzotriazole-5-sulfonamide (CAS 491612-08-9)
Recommended Standards
- 2,2'-(Phenylphosphinediyl)dibenzaldehyde (CAS 65654-64-0)
- 3-Fluoro-N-[2-(1-piperidinyl)ethyl]-5-(trifluoromethyl)benzamide (CAS 220545-44-8)
- 1-Benzotriazolyl-(Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetate (CAS 71445-20-0)
- 3-Bromo-4-butoxybenzoic acid (CAS 450416-09-8)
- 3-(4h-1,2,4-Triazol-4-ylmethyl)aniline (CAS 1249332-95-3)
- 3-Amino-2,2,3-trimethylbutan-1-ol hydrochloride (CAS 1376315-00-2)
- Acemetacin EP Impurity B Potassium Salt (CAS 28751-45-3)
- 2-(4-(4-Fluoro-3-methylphenyl)-2-(4-methylpiperazin-1-yl)thiazol-5-yl)acetic acid (CAS 1443286-03-0)
- 4-Chloro-2-formylbenzonitrile (CAS 77532-89-9)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com