3-(2-Hydroxy-2-methylbenzo[d]oxazol-3(2H)-yl)propane-1-sulfonic acid CAS 143413-71-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 143413-71-2 |
| Molecular Formula | C11H15NO5S |
| Molecular Weight | 273.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
3-(2-Hydroxy-2-methylbenzo[d]oxazol-3(2H)-yl)propane-1-sulfonic acid (CAS 143413-71-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H15NO5S. Molecular weight: 273.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H15NO5S |
| Molecular Weight | 273.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
Recommended Standards
- N-(2-(Furan-3-yl)ethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide (CAS 1428367-29-6)
- 2-(6-(P-tolyl)thiazolo[3,2-b][1,2,4]triazol-5-yl)acetic acid (CAS 1437480-95-9)
- 2-(2-{[Amino(imino)methyl]amino}-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-(2-methoxyethyl)acetamide (CAS 1428139-33-6)
- 1-(3-Bromo-4-methoxyphenyl)-2,2,2-trifluoroethan-1-ol (CAS 1249929-52-9)
- AMG-900 (CAS 945595-80-2)
- 1,3-Dimethyl-4-piperidone (CAS 4629-80-5)
- 1-(4-Bromo-3-chloro-2-fluorophenyl)-1H-imidazole (CAS 1809161-61-2)
- 6-(2,5-Difluorophenoxy)hexanenitrile (CAS 1443304-07-1)
- 2-(6-Isopropylpyridin-2-yl)-7-methoxy-8-methylquinolin-4-ol (CAS 923605-00-9)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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