2-(6-Chloro-7-hydroxy-2-oxo-2H-chromen-4-yl)acetic acid CAS 72304-21-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 72304-21-3 |
| Molecular Formula | C11H7ClO5 |
| Molecular Weight | 254.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(6-Chloro-7-hydroxy-2-oxo-2H-chromen-4-yl)acetic acid (CAS 72304-21-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H7ClO5. Molecular weight: 254.62 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H7ClO5 |
| Molecular Weight | 254.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- Ethyl 1-(4-amino-1,2,5-oxadiazol-3-yl)-5-(chloromethyl)-1H-1,2,3-triazole-4-carboxylate (CAS 352446-23-2)
- 2,2,2-Trifluoro-1-(4-pentylphenyl)ethan-1-amine (CAS 886369-34-2)
- Dimethoxy(phenyl)methanol (CAS 72046-50-5)
- 6-(2-Aminoethyl)-1-methyl-1H-indazole (CAS 1159511-56-4)
- tert-butyl (3R)-3-{[(tert-butoxy)carbonyl]amino}-3-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 1004991-69-8)
- 6-Bromo-2-(pyridin-2-yl)quinoline-4-carboxylic acid (CAS 5109-98-8)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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