1-(4-Chlorophenyl)-5-propyl-1H-pyrazole-4-carbohydrazide CAS 681260-53-7
| CAS No. | 681260-53-7 |
| Molecular Formula | C13H15ClN4O |
| Molecular Weight | 278.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(4-Chlorophenyl)-5-propyl-1H-pyrazole-4-carbohydrazide (CAS 681260-53-7), molecular formula C13H15ClN4O and molecular weight 278.74 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H15ClN4O, 1-(4-Chlorophenyl)-5-propyl-1H-pyrazole-4-carbohydrazide contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H15ClN4O |
| Molecular Weight | 278.74 g/mol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorophenyl Standards
- 1-(4-Chlorophenyl)-3-((1,3-dimethyl-1H-pyrazol-4-yl)methyl)urea (CAS 525578-20-5)
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Recommended Standards
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- 3-((4-Chloro-3,5-dimethyl-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 387344-71-0)
- 2-Chloro-7-cyclopentyl-N-methyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide (CAS 1211444-14-2)
- (4-(TERT-BUTOXYCARBONYL)-3-FLUOROPHENYL-1,2,3,4,5,6-13C6)BORONIC ACID PINACOL ESTER (CAS 2304633-99-4)
- 3-[(3-Chloro-4-methoxyphenyl)methyl]-2-{[(2,5-dimethylphenyl)methyl]sulfanyl}-6,7-dimethoxy-3,4-dihydroquinazolin-4-imine (CAS 439121-07-0)
- 3-Ethynyl-4-methoxypyridine (CAS 1196155-25-5)
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- 4,4,5,5-Tetramethyl-2-(4'-(naphthalen-2-yl)-[1,1'-biphenyl]-4-yl)-1,3,2-dioxaborolane (CAS 1450898-36-8)
- Dehydro Lonafarnib (CAS 817202-00-9)
- (Z)-3-(3,4-dimethoxyphenyl)-2-[4-(1H-pyrrol-1-yl)phenyl]-2-propenenitrile (CAS 866020-02-2)
- 2-(4-(4-Fluorophenyl)piperazin-1-yl)propanoic acid dihydrochloride (CAS 1269151-07-6)
- 6-Benzylcyclohex-3-ene-1-carboxylic acid (CAS 77634-77-6)
- D-[Phe]6-Semaglutide (CAS CATO-CPTD788633)
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