1-(2,2-Difluoroethyl)-4-iodo-3-methyl-1h-pyrazole CAS 1354705-77-3
| CAS No. | 1354705-77-3 |
| Molecular Formula | C6H7F2IN2 |
| Molecular Weight | 272.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(2,2-Difluoroethyl)-4-iodo-3-methyl-1h-pyrazole is closely related to a nitrile group, fluorine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(2,2-Difluoroethyl)-4-iodo-3-methyl-1h-pyrazole (CAS 1354705-77-3), molecular formula C6H7F2IN2 and molecular weight 272.03 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, fluorine/iodine substitution, 1-(2,2-Difluoroethyl)-4-iodo-3-methyl-1h-pyrazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.03 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).
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-5-methyl-1H-pyrazole (CAS 1354705-73-9)
- 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)
- 2-(3-(1,1-Difluoroethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 445303-66-2)
Recommended Standards
- 5-(Difluoromethyl)-4-iodo-1,3-dimethyl-1H-pyrazole (CAS 1946812-14-1)
- 1,8-DIBROMOOCTANE 4549-32-0 BC002659 LABOTEST-BB LTBB002638 OCTAMETHYLENE BROMIDE OCTAMETHYLENE DIBROMIDE (CAS 4549-32-0)
- 1-(Difluoromethyl)-4-iodo-3,5-dimethyl-1H-pyrazole (CAS 956477-73-9)
- 5-Bromo-3-(2,2,2-trifluoroethoxy)-2-pyrazinamine (CAS 947249-22-1)
- 5-(Dimethylamino)-2-methylisoindoline-1,3-dione (CAS 2307-01-9)
- N-Nitroso Evocalcet Formate (CAS CATO-C4X-248544)
- 3-Bromo-4-chloro-2-methyl-1-(p-tolyl)-6,7-dihydro-1h-indole-5-carbaldehyde (CAS 326916-09-0)
- (2R)-2-Acetamido-3-((1-hydroxybut-3-en-2-yl)thio)propanoic acid (CAS 144889-51-0)
- Bosutinib Impurity 28 (CAS 65182-98-1)
- 1-Hydroxycyclohexanecarboxylic Acid Ethyl Ester (CAS 1127-01-1)
- N-(2-Carbamoylbenzofuran-3-yl)-1-ethyl-1H-pyrazole-5-carboxamide (CAS 1170395-11-5)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate and 2-propenoic acid (CAS 26300-51-6)
- 1-(Benzo[d]thiazol-2-yl)cyclopentan-1-amine (CAS 1248147-99-0)
- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
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