1-(2,2-Difluoroethyl)-4-iodo-5-methyl-1H-pyrazole CAS 1354705-73-9
| CAS No. | 1354705-73-9 |
| Molecular Formula | C6H7F2IN2 |
| Molecular Weight | 272.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2,2-Difluoroethyl)-4-iodo-5-methyl-1H-pyrazole (C6H7F2IN2) contains a nitrile group, fluorine/iodine 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.
1-(2,2-Difluoroethyl)-4-iodo-5-methyl-1H-pyrazole (CAS 1354705-73-9) is a high-purity analytical reference standard with the molecular formula C6H7F2IN2 and a molecular weight of 272.03 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C6H7F2IN2 |
| Molecular Weight | 272.03 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/I-containing |
| Nitrogen Atoms | 2 |
Related Difluoroethyl Standards
- 1-(2,2-Difluoroethyl)-4-iodo-3-methyl-1h-pyrazole (CAS 1354705-77-3)
- Ethyl 1-(2,2-difluoroethyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxylate (CAS 2540503-11-3)
- ethyl 2-(2,2-difluoroethyl)-6-oxo-6,7-dihydro-2H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1160246-07-0)
- 2-(1,1-Difluoroethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine (CAS 1795452-02-6)
- Methyl 1-(2,2-difluoroethyl)-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1018141-97-3)
- 2-(1,1-Difluoroethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2231122-95-3)
- 4-(1,1-Difluoroethyl)phenylboronic Acid Pinacol Ester (CAS 1000994-94-4)
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Recommended Standards
- 1,8-DIBROMOOCTANE 4549-32-0 BC002659 LABOTEST-BB LTBB002638 OCTAMETHYLENE BROMIDE OCTAMETHYLENE DIBROMIDE (CAS 4549-32-0)
- 5-Bromo-3-(2,2,2-trifluoroethoxy)-2-pyrazinamine (CAS 947249-22-1)
- 5-(Difluoromethyl)-4-iodo-1,3-dimethyl-1H-pyrazole (CAS 1946812-14-1)
- 1,2-Dibromooctane (CAS 6269-92-7)
- 5-Phenyl-3-(trifluoromethyl)dihydrofuran-2(3H)-one (CAS 241819-52-3)
- spiro[3.3]heptan-2-amine hydrochloride (CAS 1416439-08-1)
- 1-Benzyl-3-((benzyloxy)methyl)-1H-pyrazol-5-amine (CAS 2173992-13-5)
- 4-Cyanoquinuclidine (CAS 26458-78-6)
- 1-Bromo-5-chloro-3-fluoro-2-methylbenzene (CAS 1082040-50-3)
- 4-Chloro-6-(1-ethoxyvinyl)pyrimidine (CAS 736991-92-7)
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