1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazole-5-carboxylic acid CAS 1787916-50-0
| CAS No. | 1787916-50-0 |
| Molecular Formula | C6H5F2IN2O2 |
| Molecular Weight | 302.02 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-1H-pyrazole-5-carboxylic acid.
1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazole-5-carboxylic acid (CAS 1787916-50-0) is a high-purity analytical reference standard with the molecular formula C6H5F2IN2O2 and a molecular weight of 302.02 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/iodine substitution, an aromatic ring system, 1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazole-5-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazole-5-carboxylic acid 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 | C6H5F2IN2O2 |
| Molecular Weight | 302.02 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 sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| 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-5-(methoxymethyl)-1H-pyrazole (CAS 1856057-83-4)
- 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
- N-(5-bromo-2-fluoro-3-hydroxyphenyl)-2,2,2-trifluoroacetamide (CAS 1881291-06-0)
- 1-(Difluoromethyl)-4-iodo-5-methyl-1H-pyrazole-3-carboxylic acid (CAS 1354704-36-1)
- 1,1,1,2,2-Pentafluoro-6-iodohexane (CAS 344452-10-4)
- 4,5-Dibromothiophene-2-carbothioic O-acid (CAS 2484692-41-1)
- Ethyl 7-methoxy-2-methylimidazo[1,2-a]pyridine-3-carboxylate (CAS 854515-82-5)
- (1-(Pyridin-3-yl)-1H-imidazol-4-yl)methanamine (CAS 1427011-27-5)
- Methyldiiodoarsine (CAS 7207-97-8)
- N-(2-Chlorophenyl)-5-[(Z)-2-[1-(pyridin-2-yl)ethylidene]hydrazin-1-yl]-1,3,4-thiadiazol-2-amine (CAS 127142-30-7)
- 2-(5-Cyano-2,3-dihydroxyphenyl)acetic acid (CAS 1805516-95-3)
- 5-Amino-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 869371-00-6)
- 5-Bromo-1-propyl-1H-1,2,4-triazole (CAS 64907-53-5)
- 2-Chloro-5-nitro-1,1'-biphenyl (CAS 29608-76-2)
- Carbamazepine Impurity 33 (CAS 34124-14-6)
- Peptide 432 (CAS CATO-CPTD788432)
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