1-(2,2-Difluoroethyl)-4-iodo-5-(methoxymethyl)-1H-pyrazole CAS 1856057-83-4
| CAS No. | 1856057-83-4 |
| Molecular Formula | C7H9F2IN2O |
| Molecular Weight | 302.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2,2-Difluoroethyl)-4-iodo-5-(methoxymethyl)-1H-pyrazole.
1-(2,2-Difluoroethyl)-4-iodo-5-(methoxymethyl)-1H-pyrazole (CAS 1856057-83-4), molecular formula C7H9F2IN2O and molecular weight 302.06 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, fluorine/iodine substitution, 1-(2,2-Difluoroethyl)-4-iodo-5-(methoxymethyl)-1H-pyrazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C7H9F2IN2O |
| Molecular Weight | 302.06 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 |
| 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.) | 1995 |
| Halogen Content | F/I-containing |
| Nitrogen Atoms | 2 |
Related Difluoroethyl Standards
- 1-(2,2-Difluoroethyl)-4-iodo-1h-pyrazole-3-carboxylic acid (CAS 1354706-66-3)
- 1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazole-5-carboxylic acid (CAS 1787916-50-0)
- 1-(2,2-Difluoroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 2409500-90-7)
- 1-[3-(1,1-difluoroethyl)piperidin-1-yl]-2-{1H-pyrrolo[2,3-b]pyridin-3-yl}ethan-1-one (CAS 2816278-96-1)
- 1-[3-(2,2-difluoroethyl)piperidin-1-yl]-2-{1H-pyrrolo[2,3-b]pyridin-3-yl}ethan-1-one (CAS 2813202-36-5)
- 2,2-Difluoroethyl (2,2,3,3,4,4,4-heptafluorobutyl) carbonate (CAS 1980048-33-6)
- 3-(2,2-difluoroethyl)-1-{7H-pyrrolo[2,3-d]pyrimidine-6-carbonyl}piperidine (CAS 2797795-70-9)
- n-(2,2-Difluoroethyl)-2-iodobenzamide (CAS 1376362-34-3)
Recommended Standards
- 1-(2-bromo-5-fluorophenyl)-2-(trifluoromethoxy)ethan-1-amine (CAS 1803581-12-5)
- 3-Iodoimidazo[1,2-a]pyridine-7-carboxylic acid methyl ester (CAS 1009378-93-1)
- Ethyl 2-(bromomethyl)-4-(trifluoromethyl)oxazole-5-carboxylate (CAS 1255098-92-0)
- Methyl 5-iodo-1H-indazole-3-carboxylate (CAS 1079-47-6)
- 2-Chloro-4-(difluoromethyl)benzoic acid (CAS 1556403-83-8)
- 4-(4-bromophenyl)-1H-pyrazol-3-amine (CAS 40545-64-0)
- 5,8-Dimethoxy-1,2,3,4-tetrahydroisoquinoline (CAS 76019-13-1)
- N-Cyclopentyl-4-(1-(4-fluorophenyl)-1H-pyrazol-4-yl)pyrimidin-2-amine (CAS 1227722-98-6)
- 3-amino-1-hydroxypiperidin-2-one (CAS 7438-77-9)
- Methyl 2-oxo-3-(p-tolyl)propanoate (CAS 99334-17-5)
- 3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-1,1,1-trifluoropropan-2-ol (CAS 478047-16-4)
- Imrecoxib Impurity 61 (CAS CATO-C4X-237961)
- 3-(3,4-Dimethoxyphenyl)but-2-en-1-amine (CAS 1344822-39-4)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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