Chroman-8-carboxylic Acid CAS 31457-16-6
| CAS No. | 31457-16-6 |
| Molecular Formula | C10H10O3 |
| Molecular Weight | 178.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Chroman-8-carboxylic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Chroman-8-carboxylic Acid (CAS 31457-16-6), molecular formula C10H10O3 and molecular weight 178.18 g/mol, is a CATO reference standard with documented purity and traceability.
Chroman-8-carboxylic Acid (C10H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H10O3 |
| Molecular Weight | 178.18 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
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- 1-(Chroman-8-yl)-N-methylmethanamine (CAS 1048970-16-6)
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Recommended Standards
- Butyl 2,2-Difluorocyclopropanecarboxylate (CAS 260352-79-2)
- Chromane-5-carboxylic acid (CAS 209256-64-4)
- Bis(2-methoxyethyl) carbonate (CAS 626-84-6)
- Cyclopropyl(2,6-dihydroxyphenyl)methanone (CAS 279231-56-0)
- N-{(Z)-[2-(2,4-Dichlorophenoxy)phenyl]methylidene}-1-methyl-1H-pyrrole-2-carbohydrazide (CAS 866019-92-3)
- 4-(Isopropoxycarbonyl)nicotinic acid (CAS 25230-26-6)
- Methyl 6-(2-aminoethyl)-4-cyanopicolinate (CAS 1393553-00-8)
- 8-chloro-2-methoxyquinoline (CAS 846038-39-9)
- 2-(5-Nitro-1H-pyrazol-1-yl)ethan-1-ol (CAS 1026867-48-0)
- 13-Phenyltridecanoic acid (CAS 20913-07-9)
- Methyl 7-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 1230486-65-3)
- 10-Chlorobenzo[g]quinoline (CAS 3645-26-9)
- (2E)-1-[5-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methyl)-4,5-dihydro-1,2-oxazol-3-yl]-3-[(4-methoxyphenyl)amino]prop-2-en-1-one (CAS 338422-63-2)
- Atrial Natriuretic Polypeptide (4-28), human (CAS 95896-08-5)
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