1-(1,3-Dimethyl-1H-pyrazol-4-yl)-2,2-difluoroethanone CAS 1174846-40-2
| CAS No. | 1174846-40-2 |
| Molecular Formula | C7H8F2N2O |
| Molecular Weight | 174.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(1,3-Dimethyl-1H-pyrazol-4-yl)-2,2-difluoroethanone (CAS 1174846-40-2) is a high-purity analytical reference standard with the molecular formula C7H8F2N2O and a molecular weight of 174.15 g/mol.
Owing to an amide group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 1-(1,3-Dimethyl-1H-pyrazol-4-yl)-2,2-difluoroethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 174.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 1-(1,3-Dimethyl-1H-pyrazol-4-yl)-2,2-difluoroethanone 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 | C7H8F2N2O |
| Molecular Weight | 174.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 1-(2,2-Difluoroethyl)-5-methyl-1h-pyrazole-4-carbaldehyde (CAS 1170655-68-1)
- 1-(1-Ethyl-1H-pyrazol-4-yl)-2,2-difluoroethanone (CAS 1174879-23-2)
- [(2-acetamidoethyl)carbamoyl]formic acid (CAS 1157000-14-0)
- 3-(2,2-Difluoroethoxy)pyridin-2-amine (CAS 1179901-13-3)
- (S)-3-(3-fluoro-4-morpholinophenyl)-5-(hydroxymethyl)oxazolidin-2-one (CAS 2180529-06-8)
- 2-(methylsulfanyl)-5,6-dihydro-4H-1,3,4-thiadiazin-5-one (CAS 1803593-04-5)
- 1-(Benzylsulfonyl)-4-methylpiperidine (CAS 331847-65-5)
- (E)-3-(5-Bromo-2-methoxypyridin-3-yl)acrylic acid (CAS 1228963-18-5)
- 4,5,6,7-Tetraphenylisobenzofuran-1,3(3aH,7aH)-dione (CAS 6971-41-1)
- 2-Fluoro-3-phenyl-6-(trifluoromethyl)pyridine (CAS 1214336-13-6)
- 2-Ethyl-3-methylbenzaldehyde (CAS 111923-34-3)
- 2-Amino-4-methylthiazole-5-sulfonyl fluoride (CAS 2196-72-7)
- D-Valine (CAS 640-68-6)
- (10-31)Semaglutide (CAS CATO-C4X-2226283)
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