3-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole CAS 1429418-90-5
| CAS No. | 1429418-90-5 |
| Molecular Formula | C6H8ClFN2 |
| Molecular Weight | 162.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole is closely related to a nitrile group, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole (CAS 1429418-90-5) is a high-purity analytical reference standard with the molecular formula C6H8ClFN2 and a molecular weight of 162.59 g/mol.
3-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole (C6H8ClFN2) contains a nitrile group, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C6H8ClFN2 |
| Molecular Weight | 162.59 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloromethyl Standards
- 5-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole (CAS 1429418-42-7)
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Recommended Standards
- 2-Chloro-1-(3-fluorobicyclo[1.1.1]pentan-1-yl)ethan-1-one (CAS 2452341-37-4)
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- 2-chloro-3-fluoropyridine-4-carbonitrile (CAS 870065-56-8)
- 6-Amino-4-chloro-1,2-dihydro-1-hydroxy-2-iminopyrimidine 6-Chloro-3,4-dihydro-3-hydroxy-2,4-pyrimidinediamine 887352-37-6 (CAS 887352-37-6)
- (R)-2-(Aminomethyl)-1-N-Boc-pyrrolidine (CAS 259537-92-3)
- 2-[4-(2-Methoxyphenyl)-tetrahydro-2H-pyran-4-yl]acetic acid (CAS 1226173-72-3)
- 2-(4-Bromo-3-methyl-1h-pyrazol-1-yl)acetic acid (CAS 512810-02-5)
- 3-Bromo-1-cyclopropyl-5-(difluoromethyl)-1H-1,2,4-triazole (CAS 2755894-04-1)
- 2-(1-((4-(1H-1,2,4-triazol-1-yl)phenyl)imino)ethyl)-3-hydroxy-1H-inden-1-one (CAS 1022352-93-7)
- 3-(4-Piperidinyl)pyrazolo[3,4-b]pyridine Trihydrochloride (CAS 1184982-95-3)
- 2-(Pyridin-2-yl)-1h-indole-3-carbaldehyde (CAS 5691-08-7)
- 1-cyclopropyl-2-(piperazin-1-yl)ethan-1-ol dihydrochloride (CAS 1461713-94-9)
- N-(2-Methoxy-phenyl)-benzene-1,4-diamine (CAS 5840-11-9)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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