2,2-Dichloro-N-methyl-3-oxobutanamide CAS 20132-74-5
| CAS No. | 20132-74-5 |
| Molecular Formula | C5H7Cl2NO2 |
| Molecular Weight | 184.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2-Dichloro-N-methyl-3-oxobutanamide (CAS 20132-74-5), molecular formula C5H7Cl2NO2 and molecular weight 184.02 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H7Cl2NO2, 2,2-Dichloro-N-methyl-3-oxobutanamide contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 184.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 2,2-Dichloro-N-methyl-3-oxobutanamide 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.
Physical & Chemical Properties
| Molecular Formula | C5H7Cl2NO2 |
| Molecular Weight | 184.02 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-(1,3-Dichloropropan-2-ylidene)hydrazine-1-carboxamide (CAS 62379-76-4)
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- 513-48-4 4302E40S4N sec-Butyl iodide Butane, 2-iodo- 2-Iodobutane 2-01-00-00086 (Beilstein Handbook Reference) BRN 1718777 2-Butyl iodide EINECS 208-163-1 sec-Iodobutane 2-Jodbutan [Czech] NSC 8422 2-Jodbutan UNII-4302E40S4N 2-Iodobutane [UN2390] [Flammable liquid] UN2390 (CAS 513-48-4)
- 4-Chloro-2-ethoxyphenol (CAS 18113-10-5)
- Angelol B (CAS 83156-04-1)
- (2-Methanesulfinylphenyl)methyl N-(4-chlorophenyl)carbamate (CAS 338967-94-5)
- 5-(Hydroxymethyl)-3-phenylpyrrolidin-2-one (CAS 133390-84-8)
- N-(3-acetylphenyl)-4-ethoxypiperidine-1-carboxamide (CAS 1304896-88-5)
- 2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (CAS 2304754-80-9)
- cis-2-((Tetrahydro-2H-pyran-4-yl)methyl)octahydropyrrolo[3,4-c]pyrrole (CAS 1690155-10-2)
- 3-Bromo-2-fluoro-N-methoxy-N-methylbenzamide (CAS 680610-73-5)
- 4-(Isopropyl(methyl)amino)butanenitrile (CAS 947263-47-0)
- Compstatin control peptide (CAS 301544-78-5)
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