4,4-Difluorobut-2-enoic acid CAS 944328-71-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 944328-71-6 |
| Molecular Formula | C4H4F2O2 |
| Molecular Weight | 122.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4-Difluorobut-2-enoic acid (CAS 944328-71-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H4F2O2. Molecular weight: 122.07 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H4F2O2 |
| Molecular Weight | 122.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Difluorobut Standards
- (E)-4,4-Difluorobut-2-enoic acid (CAS 37759-73-2)
- 4,4-Difluorobut-2-ynoic acid (CAS 110680-65-4)
- 2,2-Difluorobut-3-en-1-ol (CAS 182439-31-2)
- Ethyl 4,4-difluorobut-2-ynoate (CAS 129922-56-1)
- Ethyl 4,4-difluorobut-2-enoate (CAS 1992-97-8)
- (E)-2,3-Difluorobut-2-Enedioic Acid (CAS 2714-32-1)
- 3-(1,1-Difluorobut-3-en-1-yl)-8-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 477889-55-7)
Recommended Standards
- 4,4-difluorooxolan-3-one (CAS 2167321-91-5)
- (S)-2,2-Difluorocyclopropanecarboxylic acid, 97% (CAS 1883301-82-3)
- Methyl 3,3-difluoroacrylate (CAS 406-05-3)
- 2-Methoxy-6-(morpholin-4-yl)pyridin-3-amine (CAS 526184-47-4)
- (2S,3R)-N,3-dimethyl-1-(pyrrolidin-1-yl)pentan-2-amine (CAS 1821728-43-1)
- (S)-3-(1-Aminoethyl)-2-methylbenzonitrile (CAS 1335403-69-4)
- (4-(1,3-Dioxolan-2-yl)phenyl)(cyclohexyl)methanone (CAS 898760-90-2)
- 3-((2-Chlorobenzyl)oxy)thiophene-2-carboxylic acid (CAS 1285223-04-2)
- Methyl (4-((3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)methyl)thiazol-2-yl)carbamate (CAS 1351586-24-7)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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