5,7-Dihydroxy-4-oxo-4H-chromene-2-carboxylic acid CAS 35811-69-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 35811-69-9 |
| Molecular Formula | C10H6O6 |
| Molecular Weight | 222.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-Dihydroxy-4-oxo-4H-chromene-2-carboxylic acid (CAS 35811-69-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H6O6. Molecular weight: 222.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H6O6 |
| Molecular Weight | 222.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
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Recommended Standards
- 3-bromothieno[3,2-c]pyridine (CAS 28783-18-8)
- 5-bromothieno[2,3-b]pyridine (CAS 21344-24-1)
- 3-bromothieno[3,2-b]pyridine (CAS 94191-12-5)
- 4-Bromo-2-methylbut-3-yn-2-yl 4-nitrobenzoate (CAS 100123-29-3)
- 4-(2-(1,3-Dioxan-2-yl)ethoxy)-3-methoxybenzonitrile (CAS 1443328-07-1)
- 4-(2-aminophenyl)-1-(benzyloxy)pyrazole (CAS 229171-17-9)
- 2-[(2S)-2-Amino-3-(3-fluorophenyl)propyl]-1H-isoindole-1,3(2H)-dione (CAS 943325-38-0)
- 2-[(E)-2-nitrovinyl]thiophene (CAS 34312-77-1)
- 2,5-Di-(tert-butyl-d9)-4-methoxyphenol-3,6-d2 (CAS 1219802-07-9)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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