Diethyl naphthalene-2,3-dicarboxylate CAS 50919-54-5
| CAS No. | 50919-54-5 |
| Molecular Formula | C16H16O4 |
| Molecular Weight | 272.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl naphthalene-2,3-dicarboxylate (C16H16O4) contains a flavonoid core, a hydroxyl group, an ether linkage. 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 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).
Diethyl naphthalene-2,3-dicarboxylate (CAS 50919-54-5), molecular formula C16H16O4 and molecular weight 272.30 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C16H16O4 |
| Molecular Weight | 272.30 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Diethyl Standards
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- Diethyl naphthalene-1,8-dicarboxylate (CAS 58618-39-6)
- diethyl 1,4-dioxaspiro[4.4]nonane-8,8-dicarboxylate (CAS 1557247-15-0)
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- Diethyl (2-(benzyloxy)ethyl)phosphonate (CAS 727-18-4)
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Recommended Standards
- 2',6'-Dihydroxy 4'-methoxydihydrochalcone (CAS 35241-55-5)
- Dibenzo[b,d]furan-3-yl(phenyl)methanone (CAS 6407-29-0)
- DL-Vestitol (CAS 56701-24-7)
- Cyclohexyl 2-oxo-2H-chromene-3-carboxylate (CAS 313229-95-7)
- 1-(2-(Dimethylamino)-2-oxoethyl)-1H-pyrazole-4-carboxylic acid (CAS 1006454-68-7)
- 2-(3-ethylmorpholin-4-yl)ethan-1-amine dihydrochloride (CAS 1803586-42-6)
- 4-(2-Azepan-1-yl-ethyl)-phenylamine hydrochloride (CAS 1185299-89-1)
- N-[[4-[[[4-[[tert-Butyloxycarbonyl]amino][1,1-biphenyl]-3-yl]amino]carbonyl]phenyl]methyl]carbamic Acid Methyl Ester (CAS 1013330-69-2)
- (R)-1-(2,3-difluorophenyl)propan-1-amine (CAS 1217458-20-2)
- 6-Methyl-2-piperidin-2-yl-pyrimidin-4-ol dihydrochloride (CAS 1361114-13-7)
- 2-Ethyl-2,3-dihydrobenzofuran-2-carbothioamide (CAS 368423-55-6)
- 2,2-Dimethyl-5-(pyrrolidin-1-yl)pentan-1-amine (CAS 1491395-25-5)
- 3-(5-(2-Chlorophenyl)furan-2-yl)-N-(4-ethoxyphenyl)acrylamide (CAS 853348-43-3)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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