Ethyl 2-Keto-4-phenyl-d5-butanoate CAS 1189911-53-2
| CAS No. | 1189911-53-2 |
| Molecular Formula | - |
| Molecular Weight | 211.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H9D5O3, Ethyl 2-Keto-4-phenyl-d5-butanoate contains deuterium isotope labeling, 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 211.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Ethyl 2-Keto-4-phenyl-d5-butanoate (CAS 1189911-53-2) is a high-purity analytical reference standard with the molecular formula C12H9D5O3 and a molecular weight of 211.27 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H9D5O3 |
| Molecular Weight | 211.27 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
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Recommended Standards
- Tert-butyl 6-oxo-1-azaspiro[3.3]heptane-1-carboxylate (CAS 1363380-93-1)
- 2-Ethyl-2-phenylmalonamide-d5 (CAS 1215398-95-0)
- Propazine-2-Hydroxy (CAS 7374-53-0)
- Aldicarb-(<I>N</I>-<I>methyl</I>-<SUP>13</SUP>C,d<SUB>3</SUB> <I>Carbamoyl< /I>-<SUP>13</SUP>C) Sulfoxide (CAS 1261170-77-7)
- 3-(2-(3-Nitrophenyl)imidazo[1,2-a]pyridin-3-yl)acrylic acid (CAS 727652-20-2)
- 5-(Hydroxymethyl)cyclohexane-1,3-dione (CAS 70150-65-1)
- 2-({[3-(ethoxycarbonyl)-4,5,6,7-tetrafluorobenzo[b]furan-2-yl]methyl}thio)pyridinium-1-olate (CAS 256425-23-7)
- (2-Ethoxyvinyl)benzene (CAS 17655-74-2)
- (2S,4R)-4-Methylglutamic Acid (CAS 31137-74-3)
- syn-4-Nitrobenzaldoxime [Deprotecting Agent] (CAS 3717-20-2)
- 4-Chloro-6-(dimethylamino)pyrimidine-5-carbonitrile (CAS 60025-11-8)
- 1,1-Difluoro-3-(4-nitrophenyl)propan-2-one (CAS 1179915-44-6)
- 1-(4-Methoxyphenyl)piperidine-3-carboxylic acid (CAS 1114593-95-1)
- C-telopeptide (CAS 162929-64-8)
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