4-Methoxy-2-naphthol CAS 26693-50-5
| CAS No. | 26693-50-5 |
| Molecular Formula | C11H10O2 |
| Molecular Weight | 174.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxy-2-naphthol (CAS 26693-50-5) is a high-purity analytical reference standard with the molecular formula C11H10O2 and a molecular weight of 174.20 g/mol.
Structurally, 4-Methoxy-2-naphthol (C11H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 174.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-Methoxy-2-naphthol 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 | C11H10O2 |
| Molecular Weight | 174.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Methoxy Standards
- 5-Methoxy-2-vinyl-1H-benzo[d]imidazole (CAS 1196154-96-7)
- 6-Methoxy-2-methylquinazoline (CAS 1266119-38-3)
- 5-Methoxy-2-(1H-pyrrol-1-yl)pyridine (CAS 1279204-97-5)
- 4-Methoxy-2-phenylimidazole (CAS 128666-05-7)
- 1-Methoxy-2-vinyl-1H-benzo[d]imidazole (CAS 138972-86-8)
- 6-Methoxy-2-methylquinoxaline (CAS 146294-17-9)
- 7-Methoxy-2-methylquinoxaline (CAS 146294-18-0)
- 1-Methoxy-6-naphthol (CAS 150712-57-5)
Recommended Standards
- 4-Ethynylchroman-4-ol (CAS 7314-15-0)
- 4-Methoxyquinolin-2-amine (CAS 42712-65-2)
- 4-Ethylphthalazin-1(2H)-one (CAS 54145-30-1)
- 4-Methoxyquinolin-5-amine (CAS 2386327-94-0)
- tert-Butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)piperidine-1-carboxylate (CAS 1224449-34-6)
- 2-Cyano-3-(5-(2-octyl-7-(4-(p-tolyl)-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indol-7-yl)-2H-benzo[d][1,2,3]triazol-4-yl)thiophen-2-yl)acrylic acid (CAS 1334739-85-3)
- 4,5-Dichloro-2-methyl-1H-indole (CAS 479422-01-0)
- methyl 6-oxobicyclo[2.2.1]heptane-2-carboxylate (CAS 70680-88-5)
- Rosuvastatin EP Impurity L Calcium Salt (R-R Monomer) (CAS 1347797-73-2)
- 1-Methyl-3,4-dinitro-1h-pyrazole (CAS 66296-67-1)
- 5-(2,4-Dichlorophenoxy)-3,6-diphenyl-1,2,4-triazine (CAS 339013-02-4)
- 3,4-Dimethoxybenzaldehyde oxime (CAS 2169-98-4)
- (2-Chloro-5-nitrophenyl)methanesulfonyl chloride (CAS 1250693-09-4)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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