7-Hydroxycoumarin-4-acetic acid, 97% CAS 6950-82-9
| CAS No. | 6950-82-9 |
| Molecular Formula | C11H8O5 |
| Molecular Weight | 220.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-Hydroxycoumarin-4-acetic acid, 97%.
7-Hydroxycoumarin-4-acetic acid, 97% (CAS 6950-82-9), molecular formula C11H8O5 and molecular weight 220.18 g/mol, is a CATO reference standard with documented purity and traceability.
7-Hydroxycoumarin-4-acetic acid, 97% (C11H8O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Hydroxycoumarin-4-acetic acid, 97% meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H8O5 |
| Molecular Weight | 220.18 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.) | 1958 |
Related Hydroxycoumarin Standards
- 7-Hydroxycoumarin-4-acetic acid methyl ester, 97% (CAS 15991-13-6)
- 7-Hydroxycoumarin-3-carboxylic Acid (CAS 779-27-1)
- H-4-(7-Hydroxycoumarin-4-yl)-Abu-OH (CAS 905442-42-4)
- 5-Methyl-8-hydroxycoumarin (CAS 36651-81-7)
- 5-Hydroxycoumarin (CAS 53081-42-8)
- 7-Hydroxycoumarin (CAS 93-35-6)
- 7-Hydroxycoumarin-4-acetic acid succinimidyl ester, 97% (CAS 185102-64-1)
- 7-Hydroxycoumarin sulfate (CAS 69526-88-1)
Recommended Standards
- 7-(Methoxycarbonyl)-1H-indazole-3-carboxylic acid (CAS 898747-36-9)
- 7-Methoxy-3-nitroquinolin-4(1H)-one (CAS 256923-63-4)
- 6-Nitroindole-3-acetic Acid (CAS 79473-06-6)
- 7-Methoxy-4-oxo-4H-chromene-2-carboxylic acid (CAS 23915-78-8)
- 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indolin-2-one (CAS 1150271-44-5)
- 2-Iodo-6-methoxy-benzaldehyde (CAS 5025-59-2)
- Methyl 6-(1H-pyrrol-1-yl)nicotinate (CAS 852180-80-4)
- 1-(3-Chloro-2-methylpropyl)-4-iodobenzene (CAS 1493672-63-1)
- Ethyl 6-bromo-2-cyano-3-formylbenzoate (CAS 1805584-82-0)
- Bicyclo[3.2.1]octan-2-amine hydrochloride (CAS 1195211-57-4)
- 2-(1-Methylindolin-5-yl)acetaldehyde (CAS 1343928-12-0)
- 1-(4-bromo-2-fluorophenyl)propan-1-one (CAS 259750-61-3)
- (r)-3-Amino-3-(5-ethylfuran-2-yl)propanoic acid (CAS 1269827-84-0)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
Why CATO?
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