4-(4-Chlorophenyl)pyridine CAS 5957-96-0
| CAS No. | 5957-96-0 |
| Molecular Formula | C11H8ClN |
| Molecular Weight | 189.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)pyridine (CAS 5957-96-0), molecular formula C11H8ClN and molecular weight 189.64 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(4-Chlorophenyl)pyridine (C11H8ClN) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 4-(4-Chlorophenyl)pyridine 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 | C11H8ClN |
| Molecular Weight | 189.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenyl Standards
- 2-(2-Chlorophenyl)pyridine (CAS 4381-32-2)
- 2-(3-Chlorophenyl)pyridine (CAS 5957-85-7)
- 2-(4-Chlorophenyl)pyridine (CAS 5969-83-5)
- 3-(3-Chlorophenyl)pyridine (CAS 5970-10-5)
- 3-(4-Chlorophenyl)pyridine (CAS 5957-97-1)
- 4-(3-Chlorophenyl)pyridine (CAS 5957-92-6)
- 31301-39-0 3-(4-Chlorophenyl)isoxazole DTXSID70449189 (CAS 31301-39-0)
- (3-Chlorophenyl)carbamicchloride (CAS 51028-36-5)
Recommended Standards
- 4-Chloro-2-phenylpyridine (CAS 57311-18-9)
- 3-Chloro-5-phenylpyridine (CAS 292068-12-3)
- 4-chloropyrrolo[2,1-f][1,2,4]triazine-5-carbaldehyde (CAS 859854-70-9)
- 3-Chloro-2-phenylpyridine (CAS 634198-21-3)
- 4-Amino-3-((triisopropylsilyl)ethynyl)benzoic acid (CAS 2834081-10-4)
- 3-(3-Fluorobenzamido)-3-methylbutanoic acid (CAS 1427975-43-6)
- 12,43-Dichloro-1,4(1,4)-dibenzenacyclohexaphane (CAS 10366-05-9)
- 4,4′-trimethylenedipiperidine (CAS 16898-52-5)
- 3-[(Diethylamino)carbonyl]benzoic Acid Methyl Ester (CAS 126926-38-3)
- 3-Methyl-1-(3-thienylmethyl)-1H-pyrazol-5-amine (CAS 1250732-00-3)
- Methyl 5-formyl-2-(pyrrolidin-1-yl)benzoate (CAS 1312117-87-5)
- 4-Boc-Aminomethylphenylacetic acid (CAS 71420-92-3)
- (5,6,7,8-Tetrahydro-4h-cyclohepta[b]thiophen-2-yl)methanamine (CAS 933740-89-7)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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