2,7-diamino-1,3-benzoxazole-5-sulfonic acid CAS 1820649-69-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1820649-69-1 |
| Molecular Formula | C7H7N3O4S |
| Molecular Weight | 229.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,7-diamino-1,3-benzoxazole-5-sulfonic acid (CAS 1820649-69-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7N3O4S. Molecular weight: 229.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7N3O4S |
| Molecular Weight | 229.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(Allyloxy)-5-nitrothiophene-2-carboxylic acid (CAS 1707568-96-4)
- 5-(3-fluorophenyl)-[1,2,4]triazolo[1,5-a]pyrazin-2-amine (CAS 1956322-63-6)
- (4-Fluorophenyl)-4-pyridinyl-ethanedione 1-(4-Fluorophenyl)-2-(4-pyridinyl)-1,2-ethanedione 1-(4-Fluorophenyl)-2-(4-pyridyl)ethanedial 152121-41-0 (CAS 152121-41-0)
- Methyl-d3-amine (gas) (CAS 5581-55-5)
- Ethyl (1S,3R,4R)-3-amino-4-hydroxycyclohexane-1-carboxylate hydrochloride (CAS 1392745-67-3)
- 2-((4-Butyl-2-oxo-2h-chromen-7-yl)oxy)acetic acid (CAS 438027-96-4)
- Sertraline EP Impurity B HCl (CAS 52758-05-1)
- 1-Ethyl-3-formyl-6-methoxy-1h-indole-2-carboxylic acid (CAS 1242952-01-7)
- But-3-yn-1-ylcyclopentane (CAS 141345-07-5)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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