7-methoxy-2-naphthoic acid CAS 5043-07-2
| CAS No. | 5043-07-2 |
| Molecular Formula | C12H10O3 |
| Molecular Weight | 202.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-methoxy-2-naphthoic acid 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.
7-methoxy-2-naphthoic acid (CAS 5043-07-2) is a high-purity analytical reference standard with the molecular formula C12H10O3 and a molecular weight of 202.21 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 7-methoxy-2-naphthoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 202.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10O3 |
| Molecular Weight | 202.21 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 chloroform, dichloromethane, ethyl acetate, 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 |
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Recommended Standards
- 7-Hydroxy-2,3-dihydropyrrolo[2,1-b]quinazolin-9(1H)-one (CAS 85654-22-4)
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- 7-Amino-2-methylquinoline-5-carboxylic acid (CAS 502172-25-0)
- 8-Hydroxy-1-naphthohydrazide (CAS 874606-24-3)
- 2,6-Dichloro-N-(cyclopenta-1,3-dien-1-yl)-N-methylpyrimidin-4-amine (CAS 1332531-17-5)
- 1-[2-(Piperazin-1-yl)ethyl]pyrrolidine-2,5-dione (CAS 34992-84-2)
- 5-Bromo-N-[3-(dimethylamino)propyl]pyridin-2-amine (CAS 1039987-25-1)
- 6-(1H-Imidazol-1-yl)-N-(2-methoxy-5-methylphenyl)pyridazine-3-carboxamide (CAS 1396792-69-0)
- 4-Bromo-1-(4-chlorobenzyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 400753-16-4)
- Methyl 5-chloroisoxazolo[4,5-b]pyrazine-3-carboxylate (CAS 1374986-05-6)
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