5-Cyclopropyl-4-fluoro-1H-pyrazole-3-carboxamide CAS 957129-53-2
| CAS No. | 957129-53-2 |
| Molecular Formula | C7H8FN3O |
| Molecular Weight | 169.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Cyclopropyl-4-fluoro-1H-pyrazole-3-carboxamide (C7H8FN3O) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-Cyclopropyl-4-fluoro-1H-pyrazole-3-carboxamide (CAS 957129-53-2), a certified reference material (molecular formula C7H8FN3O, MW 169.16 g/mol) for analytical method development and quality control.
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 | C7H8FN3O |
| Molecular Weight | 169.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Cyclopropyl Standards
- 4-Cyclopropyl-3,5-difluoroaniline (CAS 1208087-40-4)
- N-Cyclopropyl-3,5-difluoroaniline (CAS 1506097-42-2)
- 1-Cyclopropyl-2-oxopyrrolidine-3-carboxylic acid (CAS 1017472-80-8)
- Methyl 2-cyclopropyl-4,5-dihydrooxazole-4-carboxylate (CAS 1344088-61-4)
- 1-Cyclopropyl-5-oxopyrrolidine-3-carboxylic acid (CAS 876716-43-7)
- Methyl 5-cyclopropyl-2,5-dihydroisoxazole-5-carboxylate (CAS 887360-91-2)
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- 2-Cyclopropyl-1,3-thiazole-5-carboxylic acid (CAS 1094230-05-3)
Recommended Standards
- 4-Amino-5-fluoro-N-methylpicolinamide (CAS 2417666-34-1)
- 5-Nitroimidazo[2,1-b]thiazole (CAS 96107-61-8)
- 3-Methyl-4-nitro-isothiazole-5-carbonitrile (CAS 4577-00-8)
- Dl-cysteicacid (CAS 3024-83-7)
- 2-(2-{4-[2-(methylsulfanyl)phenyl]piperazin-1-yl}ethyl)-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-3-one (CAS 860651-27-0)
- 1,6-Dimethyl-1h-indole-2-carboxylic acid (CAS 893730-44-4)
- 2-Chloro-N-(3-(trifluoromethyl)benzyl)acetamide (CAS 101824-35-5)
- (2R)-2-Methyl-butanoic Acid Methyl Ester (CAS 55449-44-0)
- 4-(2-Iodobenzyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 1338495-25-2)
- 4-[2-(sec-Butyl)phenoxy]piperidine hydrochloride (CAS 1220028-65-8)
- 5-Methyl-2-phenylquinoline (CAS 500595-66-4)
- Benzobicyclon (CAS 156963-66-5)
- 1-(4-(Thiophen-3-yl)phenyl)ethan-1-one (CAS 172035-84-6)
- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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