Ethyl 3-amino-4,4-difluorobut-2-enoate CAS 81982-54-9
| CAS No. | 81982-54-9 |
| Molecular Formula | C6H9F2NO2 |
| Molecular Weight | 165.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 3-amino-4,4-difluorobut-2-enoate.
CATO supplies Ethyl 3-amino-4,4-difluorobut-2-enoate (CAS 81982-54-9), a certified reference material (molecular formula C6H9F2NO2, MW 165.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H9F2NO2, Ethyl 3-amino-4,4-difluorobut-2-enoate contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 165.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C6H9F2NO2 |
| Molecular Weight | 165.14 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.) | 1980 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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- (R)-2-amino-2-(3,3-difluorocyclobutyl)acetic acid (CAS 2231665-47-5)
- 2-Amino-2-(3,3-difluorocyclobutyl)acetic acid (CAS 2097952-59-3)
- Methyl 1-amino-4-cyano-1H-pyrrole-2-carboxylate (CAS 1000313-12-1)
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Recommended Standards
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- 5,7-Difluoroquinoline (CAS 34522-72-0)
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- n-[(4-chlorophenyl)methyl]-1-(hydrazinecarbonyl)formamide (CAS 869947-04-6)
- 2,4-Dichloro-5-(difluoromethoxy)benzylamine (CAS 1803714-06-8)
- 1,2-Dihydronaphtho[2,1-b]furan-2-carbohydrazide (CAS 400878-27-5)
- 4,5-Dibromo-N-(2-fluorophenyl)thiophene-2-carboxamide (CAS 1011426-77-9)
- 7-methyl-7-azaspiro[3.5]nonan-2-ol (CAS 2306277-28-9)
- Cyclopropa[3,4]cyclopenta[1,2-d]pyrimidine (CAS 297182-36-6)
- 3-(Cyclohexanecarboxamido)-3-(4-isopropylphenyl)propanoic acid (CAS 861207-57-0)
- (3S)-3-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-3-[(4-nitrophenyl)carbamoyl]propanoic acid (CAS 185547-52-8)
- Peptide T (CAS 106362-32-7)
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