3-(2-Chlorophenyl)-1-methyl-1h-pyrazole-4-carbaldehyde CAS 1152508-67-2
| CAS No. | 1152508-67-2 |
| Molecular Formula | C11H9ClN2O |
| Molecular Weight | 220.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(2-Chlorophenyl)-1-methyl-1h-pyrazole-4-carbaldehyde (CAS 1152508-67-2), molecular formula C11H9ClN2O and molecular weight 220.65 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(2-Chlorophenyl)-1-methyl-1h-pyrazole-4-carbaldehyde (C11H9ClN2O) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 220.65 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.
As a certified reference material (CRM), 3-(2-Chlorophenyl)-1-methyl-1h-pyrazole-4-carbaldehyde 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 | C11H9ClN2O |
| Molecular Weight | 220.65 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 1-(4-Chlorophenyl)-5-oxopyrrolidine-3-carbonitrile (CAS 1017458-43-3)
- 1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1046784-68-2)
- 1-(4-chlorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1152543-59-3)
- 2-(2-Chlorophenyl)-1-(furan-2-yl)ethan-1-one (CAS 1179791-53-7)
- 2-(2-chlorophenyl)-1-(furan-3-yl)ethan-1-one (CAS 1184371-84-3)
- 6-(4-Chlorophenyl)-3-methylpyrimidin-4(3H)-one (CAS 1207031-14-8)
- 6-(4-Chlorophenyl)-2-methylpyrimidin-4-ol (CAS 1256778-64-9)
- 6-(4-Chlorophenyl)-5-methylpyrimidin-4-ol (CAS 1256778-65-0)
Recommended Standards
- 5-(3-Chloro-2-methylphenyl)-2-hydroxypyrimidine (CAS 1111109-06-8)
- 5-(4-Chloro-2-methylphenyl)pyrimidin-2-ol (CAS 1111108-75-8)
- 2-Chloro-1-(1-phenyl-1h-pyrazol-4-yl)ethan-1-one (CAS 1152595-86-2)
- 5-(3-Chloro-4-methylphenyl)pyrimidin-2-ol (CAS 1111108-44-1)
- 5-Bromo-2-chloro-N-((1-methyl-1h-pyrazol-5-yl)methyl)benzamide (CAS 1177223-00-5)
- ethyl {[4-cyclopropyl-6-(difluoromethyl)pyrimidin-2-yl]thio}acetate (CAS 886498-18-6)
- 4-(4-Bromophenyl)-2,6-dichloro-5-methylpyrimidine (CAS 1479931-46-8)
- 1-(2-(4-Methyl-6-(methylamino)pyridin-3-yl)piperidin-1-yl)ethanone (CAS 1352516-70-1)
- 4-Bromo-1-[4-(trifluoromethyl)cyclohexyl]-1h-pyrazol-5-amine (CAS 1484135-26-3)
- 3,3-Difluoro-4-methylpyrrolidine (CAS 1554367-59-7)
- 2-Iodo-5-(trifluoromethyl)benzo[d]thiazole (CAS 1188077-83-9)
- Ethyl 3-amino-4-ethoxybenzoate (CAS 141238-15-5)
- 3-Acetyl-2-methylquinoline-4-carboxylic acid (CAS 106380-95-4)
- Rac1 Inhibitor F56, control peptide (CAS 1315378-77-8)
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