6,7-Dimethoxy-1-naphthoic acid CAS 72337-68-9
| CAS No. | 72337-68-9 |
| Molecular Formula | C13H12O4 |
| Molecular Weight | 232.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6,7-Dimethoxy-1-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.
6,7-Dimethoxy-1-naphthoic acid (CAS 72337-68-9), molecular formula C13H12O4 and molecular weight 232.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6,7-Dimethoxy-1-naphthoic acid (C13H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 232.23 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.
Physical & Chemical Properties
| Molecular Formula | C13H12O4 |
| Molecular Weight | 232.23 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.) | 1977 |
Related Dimethoxy Standards
- 4,8-Dimethoxy-2-naphthoic acid (CAS 105901-90-4)
- 2,7-dimethoxy-1-naphthoic acid (CAS 17953-58-1)
- 1,3-Dimethoxy-2-naphthoic acid (CAS 93087-59-3)
- 1,4-Dimethoxy-2-naphthoic acid (CAS 78265-13-1)
- 3,5-Dimethoxy-2-naphthoic acid (CAS 98410-68-5)
- 4,7-Dimethoxy-1-naphthoic acid (CAS 90381-45-6)
- 6,7-Dimethoxy-2-naphthoic Acid (CAS 37707-78-1)
- 6,7-Dimethoxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carbonitrile (CAS 175988-86-0)
Recommended Standards
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- 5,7-Difluoro-2-(pyridin-4-yl)indoline (CAS 591721-09-4)
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- (8'aR)-hexahydro-1'H-spiro[cyclopropane-1,6'-pyrrolo[1,2-a]piperazine]-3'-one (CAS 2165665-01-8)
- Teprenone Epoxide ( Mixture ) (CAS CATO-C4X-208115)
- (3-(2,6-Dichlorophenyl)-5-methylisoxazol-4-yl)(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)methanone (CAS 378753-06-1)
- (R)-2-(4-Ethynylphenyl)propanoic acid (CAS 2349641-21-8)
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- 2-Azaspiro[4.5]Decan-6-ol (CAS 1369370-38-6)
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