5-Chloro-1-(3-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde CAS 1172895-27-0
| CAS No. | 1172895-27-0 |
| Molecular Formula | C11H8ClFN2O |
| Molecular Weight | 238.65 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 5-Chloro-1-(3-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde.
5-Chloro-1-(3-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1172895-27-0), molecular formula C11H8ClFN2O and molecular weight 238.65 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Chloro-1-(3-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (C11H8ClFN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/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 238.65 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-1-(3-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H8ClFN2O |
| Molecular Weight | 238.65 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 | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-[(4-chloro-1h-pyrazol-1-yl)methanesulfonyl]acetic acid (CAS 1006468-71-8)
- 1-(3-Chloro-4-fluorophenyl)-5-oxopyrrolidine-3-carbonitrile (CAS 1017458-51-3)
- 1-(4-chloro-2-fluorophenyl)-2-(1H-imidazol-2-yl)ethan-1-one (CAS 1094763-06-0)
- 5-Chloro-1-(2-fluorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1152583-57-7)
- 1-(4-(4-Chloro-1h-pyrazol-1-yl)-3-fluorophenyl)ethan-1-one (CAS 1179519-69-7)
- 1-(2-(4-Chloro-1h-pyrazol-1-yl)-5-fluorophenyl)ethan-1-one (CAS 1184589-16-9)
- 2-Chloro-4-(3-fluorophenoxy)-6-methylpyrimidine (CAS 1247753-40-7)
- 1-(3-Chloro-4-fluorophenyl)-4-oxopyrrolidine-3-carbonitrile (CAS 1312137-30-6)
Recommended Standards
- Ethyl 3-(chlorosulfonyl)-1H-pyrazole-4-carboxylate (CAS 115703-22-5)
- Methyl 5-(chlorosulfonyl)-1-methyl-1h-pyrazole-4-carboxylate (CAS 1151512-24-1)
- Methyl 5-(chlorosulfonyl)-1-methyl-1h-pyrazole-3-carboxylate (CAS 1245823-37-3)
- methyl 5-chlorosulfonyl-2-methyl-pyrazole-3-carboxylate (CAS 1122567-32-1)
- Methyl 2-(2-((2-(methylamino)-2-oxoethyl)thio)-5-(p-tolyl)-1H-imidazol-1-yl)acetate (CAS 1206997-31-0)
- 2-azido-n-cyclohexylacetamide (CAS 114703-80-9)
- (2-Trimethylstannanyl-phenyl)-carbamic acid tert-butyl ester (CAS 114552-32-8)
- 2-Ethyl-8,9-dimethoxy-5H,6H-[1,2,4]triazolo[1,5-c]quinazoline-5-thione (CAS 860610-83-9)
- 1-(3-Hydroxy-7,8-dihydropyrido[4,3-c]pyridazin-6(5H)-yl)ethan-1-one (CAS 1071629-82-7)
- (4-Bromo-6-fluoropyridin-2-yl)methanamine (CAS 1260666-01-0)
- 4-Ethyl-1H-pyrrole-2-carbaldehyde (CAS 187842-17-7)
- 4-Methyl-N-((5-phenylisoxazol-3-yl)methyl)-1,2,3-thiadiazole-5-carboxamide (CAS 1210311-08-2)
- 3,4-Difluoro-N-(2,2,2-trifluoroethyl)aniline (CAS 1021136-24-2)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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