| Difluoroacetic acid Basic information |
| Product Name: | Difluoroacetic acid |
| Synonyms: | 2,2-DIFLUOROACETIC ACID;1,1-DIFLUOROACETIC ACID;VITAS-BB TBB000649;DIFLUOROACETIC ACID;Acetic acid, difluoro-;difluoro-aceticaci;DIFLUOROACETATE;Difluoroaceticacid98% |
| CAS: | 381-73-7 |
| MF: | C2H2F2O2 |
| MW: | 96.03 |
| EINECS: | 206-839-0 |
| Product Categories: | Pharmaceutical Intermediates;Small molecule;Organic Fluorides;Fluorinated Building Blocks;Fluorinating Reagents & Building Blocks for Fluorinated Biochemical Compounds;Synthetic Organic Chemistry;Chemical Synthesis;Organic Acids;Synthetic Reagents |
| Mol File: | 381-73-7.mol |
| Difluoroacetic acid Chemical Properties |
| Melting point | -1 °C (lit.) |
| Boiling point | 132-134 °C (lit.) |
| density | 1.526 g/mL at 25 °C (lit.) |
| vapor pressure | 11.7hPa at 25℃ |
| refractive index | n |
| Fp | 174 °F |
| storage temp. | 2-8°C |
| solubility | 540.54g/L in organic solvents at 20 ℃ |
| form | Liquid |
| pka | pK1:1.33 (25°C) |
| color | Clear colorless to light brown |
| Specific Gravity | 1.527 (20℃) |
| Water Solubility | 1000g/L at 37℃ |
| BRN | 1098588 |
| InChIKey | PBWZKZYHONABLN-UHFFFAOYSA-N |
| LogP | 0.601 at 37℃ |
| CAS DataBase Reference | 381-73-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Difluoroacetic acid(381-73-7) |
| EPA Substance Registry System | Acetic acid, difluoro- (381-73-7) |
| Safety Information |
| Hazard Codes | C |
| Risk Statements | 34-35 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3265 8/PG 2 |
| WGK Germany | 3 |
| RTECS | AG9900000 |
| Hazard Note | Corrosive |
| TSCA | T |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29159080 |
| MSDS Information |
| Provider | Language |
|---|---|
| Difluoroacetic acid | English |
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| Difluoroacetic acid Usage And Synthesis |
| Chemical Properties | clear colorless to light brown liquid |
| Uses | Used in the preparation of 2-difluoromethylbenzimidazoles, -oxazoles and -thiazoles from ortho-substituted anilines mediated by triphenylphoshine. |
| Definition | ChEBI: A monocarboxylic acid that is acetic acid in which two of the methyl hydrogens are substituted by fluorines. |
| Flammability and Explosibility | Nonflammable |
| Purification Methods | Purify the acid by distilling over P2O5. The acid chloride is a fuming liquid b 25o/atm, and the amide has b 108.6o/35mm, m 52o (from *C6H6), and the anilide has b 90o/1mm, 114o/5mm, m 58o [Henne & Pelley J Am Chem Soc 74 1426 1952, Coffman et al. J Org Chem 14 749 1949, NMR: Meyer et al. J Am Chem Soc 75 4567 1953, pK: Wegscheider Z Phys Chem 69 614 1909]. [Beilstein 2 IV 455.] |
| Difluoroacetic acid Preparation Products And Raw materials |
| Raw materials | CHLORODIFLUOROACETYL CHLORIDE-->Chlorodifluoroacetic acid-->METHYL CHLORODIFLUOROACETATE-->METHYL DIFLUOROACETATE-->Methanol |
| Preparation Products | BROMODIFLUOROACETIC ACID-->TETRAFLUOROSUCCINIC ACID-->2-Difluoromethyl-1H-benzoimidazole |
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