7-methoxy-2-oxo-2H-1,3-benzoxathiole-5-carbaldehyde CAS 4991-69-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4991-69-9 |
| Molecular Formula | C9H6O4S |
| Molecular Weight | 210.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 7-methoxy-2-oxo-2H-1,3-benzoxathiole-5-carbaldehyde (CAS 4991-69-9) pharmaceutical standards reference standard. Molecular formula: C9H6O4S. Molecular weight: 210.21 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C9H6O4S |
| Molecular Weight | 210.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-Nitro-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 21762-74-3)
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- 6-(Methylthio)-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylic acid (CAS 55117-93-6)
- 2,7,7-Trimethyl-5-oxo-4-(pyridin-3-yl)-1,4,5,6,7,8-hexahydroquinoline-3-carbonitrile (CAS 306286-94-2)
- 5-Cyano-N-[(1E)-(dimethylamino)methylidene]-3-methyl-4-phenylthiophene-2-carboxamide (CAS 339111-53-4)
- (2R,3R)-3-Amino-2-hydroxy-3-phenylpropanoic Acid (CAS 7309-54-8)
- 6-Chloro-5-fluoro-3-(propan-2-yl)-2,3,4,5-tetrahydropyrimidine-2,4-dione (CAS 1565085-68-8)
- 3-(4-Methoxyphenyl)-4-(p-tolyl)-5-((p-tolyloxy)methyl)-4H-1,2,4-triazole (CAS 141079-00-7)
- Methyl 2-(5-fluoro-2-methylphenyl)acetate (CAS 1427451-38-4)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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