7-Ethoxy-2-hydroxynaphthalene CAS 57944-44-2
| CAS No. | 57944-44-2 |
| Molecular Formula | C12H12O2 |
| Molecular Weight | 188.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Ethoxy-2-hydroxynaphthalene 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-Ethoxy-2-hydroxynaphthalene (CAS 57944-44-2), molecular formula C12H12O2 and molecular weight 188.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H12O2, 7-Ethoxy-2-hydroxynaphthalene contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C12H12O2 |
| Molecular Weight | 188.22 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.) | 1973 |
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- 8-Bromo-2-methylquinoline (CAS 61047-43-6)
- 2-(2-Chloropyridin-3-yl)-4-(2,5-dimethylphenyl)thiazole (CAS 1431729-67-7)
- 6-Bromo-4-fluorobenzo[d]thiazol-2(3H)-one (CAS 1188043-27-7)
- 2,3-Bis(butylthio)naphthalene-1,4-dione (CAS 671189-54-1)
- (2E)-1-{[1,1'-Biphenyl]-4-yl}-3-(4-tert-Butylphenyl)prop-2-en-1-one (CAS 801271-65-8)
- Methyl 2-amino-3-(thiophen-2-yl)propanoate hydrochloride (CAS 98593-56-7)
- Peptide 436 (CAS CATO-CPTD788436)
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