Diethyl 2-(1-phenylpropyl)malonate CAS 37556-02-8
| CAS No. | 37556-02-8 |
| Molecular Formula | C16H22O4 |
| Molecular Weight | 278.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Diethyl 2-(1-phenylpropyl)malonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 278.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 2-(1-phenylpropyl)malonate (CAS 37556-02-8) is a high-purity analytical reference standard with the molecular formula C16H22O4 and a molecular weight of 278.34 g/mol.
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 | C16H22O4 |
| Molecular Weight | 278.34 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Diethyl Standards
- Diethyl 2-(3,4-dimethylbenzyl)malonate (CAS 289902-87-0)
- Diethyl 2-(1,1-dioxidotetrahydrothiophen-3-yl)malonate (CAS 4785-62-0)
- Diethyl decylphosphonate (CAS 16165-68-7)
- Diethyl 5,6,7,8-tetrahydroquinazoline-2,4-dicarboxylate (CAS 117663-61-3)
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- Diethyl 2-(((2-aminophenyl)amino)methylene)malonate (CAS 14525-98-5)
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- Diethyl (naphthalen-1-ylmethyl)phosphonate (CAS 53575-08-9)
Recommended Standards
- Dibutyl isophthalate (CAS 3126-90-7)
- Butyl sec-Butyl Phthalate (CAS 97621-09-5)
- Di-sec-butyl Phthalate (CAS 4489-61-6)
- Butanedioic acid, 2-[(4-methylphenyl)methyl]-, 1,4-diethyl ester (CAS 2102410-72-8)
- 2-(Ethyl(3-nitrobenzyl)amino)ethanol (CAS 1247791-84-9)
- 4H-1-Benzopyran-4-one, 7-[(6-deoxy-α-L-mannopyranosyl)oxy]-3-(β-D-glucopyranosyloxy)-5-hydroxy-2-(4-hydroxyphenyl)- (CAS 2392-95-2)
- 2-(3,5-dimethyl-1H-pyrazol-4-yl)ethan-1-amine dihydrochloride (CAS 423176-41-4)
- 1-(2-Fluoro-5-methylpyridin-4-yl)ethan-1-one (CAS 1393566-40-9)
- 1H-Pyrazol-1-ol (CAS 81945-73-5)
- 3-Benzoyl-6-bromo-2h-chromen-2-one (CAS 2199-85-1)
- Benzyl Azetidine-3-carboxylate Hydrochloride (CAS 1443979-76-7)
- 1-(bromomethyl)-2-chloro-3,4-difluorobenzene (CAS 1805526-51-5)
- methyl 3-(4-methylphenyl)-2-sulfanylpropanoate (CAS 139744-19-7)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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