4-((4-Hydroxyphenyl)diazenyl)benzenesulfonic acid CAS 2918-83-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2918-83-4 |
| Molecular Formula | C12H10N2O4S |
| Molecular Weight | 278.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((4-Hydroxyphenyl)diazenyl)benzenesulfonic acid (CAS 2918-83-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H10N2O4S. Molecular weight: 278.28 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H10N2O4S |
| Molecular Weight | 278.28 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxyphenyl Standards
- 4-((4-Hydroxyphenyl)sulfonyl)benzoic acid (CAS 59216-83-0)
- (R)-3-(4-Hydroxyphenyl)-2-((R)-pyrrolidine-2-carboxamido)propanoic acid (CAS 821776-09-4)
- (2-Hydroxyphenyl)(1-(p-tolyl)-1H-pyrazol-4-yl)methanone (CAS 887356-20-9)
- Methyl 4-(4-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 314052-39-6)
- 1-(2-Hydroxyphenyl)-4-(tert-butoxycarbonyl)piperazine (CAS 313657-51-1)
- N-(2-Hydroxyphenyl)-2,4-dimethylbenzenesulfonamide (CAS 1039984-24-1)
- n-(4-Hydroxyphenyl)-n,4-dimethylbenzene-1-sulfonamide (CAS 124772-05-0)
- Ethyl 2-(4-hydroxyphenyl)-2-(2-oxopiperidin-1-yl)acetate (CAS 886493-63-6)
Recommended Standards
- 3-Amino-5-(3-nitrophenyl)thiophene-2-carboxylicacid methyl ester, tech grade (CAS 474843-42-0)
- 3-[(4-Fluoro-2-nitrophenyl)amino]-5,5-dimethylcyclohex-2-en-1-one (CAS 330974-51-1)
- 4-((Phenylsulfonyl)oxy)benzoic acid (CAS 7507-41-7)
- 3-Acetamido-N-isopropylbenzamide (CAS 86478-68-4)
- 1-{4-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl}propan-2-amine (CAS 1555713-56-8)
- 2-(2,4,5-Trifluorophenyl)ethanol (CAS 883267-70-7)
- 2-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)-4-fluoroaniline (CAS 1040333-74-1)
- 6-Bromo-6-dehydroxy Morphine (1.0mg/ml in Acetonitrile) (CAS 63732-46-7)
- tert-Butyl ((1-(4-aminophenyl)pyrrolidin-3-yl)methyl)carbamate (CAS 889948-62-3)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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