1-Benzyl-4-chloro-1H-pyrazol-3(2H)-one CAS 68429-95-8
| CAS No. | 68429-95-8 |
| Molecular Formula | C10H9ClN2O |
| Molecular Weight | 208.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Benzyl-4-chloro-1H-pyrazol-3(2H)-one 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.
CATO supplies 1-Benzyl-4-chloro-1H-pyrazol-3(2H)-one (CAS 68429-95-8), a certified reference material (molecular formula C10H9ClN2O, MW 208.64 g/mol) for analytical method development and quality control.
Structurally, 1-Benzyl-4-chloro-1H-pyrazol-3(2H)-one (C10H9ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 208.64 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C10H9ClN2O |
| Molecular Weight | 208.64 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-(2-Methyl-1-(phenylsulfinyl)propyl)furan (CAS 956795-28-1)
- 4-Amino-2-(4-chlorophenyl)butan-2-ol (CAS 1368658-17-6)
- Licochalcone A (CAS 58749-22-7)
- 1-(2-Methylpiperidin-1-yl)butane-1,3-dione (CAS 196407-99-5)
- 4-(3-Chlorothiophen-2-yl)-2-(2,5-dimethyl-1H-pyrrol-1-yl)-6-methylpyrimidine (CAS 860788-74-5)
- Ethyl(4-nitrophenyl)sulfane (CAS 7205-60-9)
- 2-(Ethoxycarbonyl)-4,5-difluorobenzoic acid (CAS 1565354-74-6)
- 3-(2-(4-(Bis(4-fluorophenyl)methylene)piperidin-1-yl)ethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one dihydrochloride (CAS 87071-17-8)
- D-[Phe]6-Semaglutide (CAS CATO-CPTD788633)
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