(+/-)-4-Chlorophenyl-5-[(3,4-isopropylidine)-2-methylpyridine]methanol CAS 133545-64-9
| CAS No. | 133545-64-9 |
| Molecular Formula | C17H18ClNO3 |
| Molecular Weight | 319.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 319.78 g/mol gives (+/-)-4-Chlorophenyl-5-[(3,4-isopropylidine)-2-methylpyridine]methanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (+/-)-4-Chlorophenyl-5-[(3,4-isopropylidine)-2-methylpyridine]methanol (CAS 133545-64-9), a certified reference material (molecular formula C17H18ClNO3, MW 319.78 g/mol) for analytical method development and quality control.
(+/-)-4-Chlorophenyl-5-[(3,4-isopropylidine)-2-methylpyridine]methanol (C17H18ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Chlorophenyl-5-[(3,4-isopropylidine)-2-methylpyridine]methanol 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 | C17H18ClNO3 |
| Molecular Weight | 319.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenyl Standards
- 1-(4-Chlorophenyl)-3-[(2,4-dimethoxyphenyl)amino]propan-1-one (CAS 477318-99-3)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-1-morpholinopropan-1-one (CAS 853312-31-9)
- 1-(2-Chlorophenyl)-5-methyl-N-(thiazol-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 878734-76-0)
- 2-(5-(4-Chlorophenyl)isoxazol-3-yl)-N-(thiazol-2-yl)acetamide (CAS 946227-41-4)
- (4-(3-Chlorophenyl)piperazin-1-yl)(3,5-dimethylisoxazol-4-yl)methanone (CAS 478031-57-1)
- 2-(4-Chlorophenyl)-6-(p-tolyl)pyrazolo[1,5-a]pyrimidine (CAS 900019-44-5)
- 6-Benzyl-3-(2-chlorophenyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 745826-93-1)
- 6-Butyl-4-(2-chlorophenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione (CAS 923233-12-9)
Recommended Standards
- Tert-butyl 4-(benzyloxy)-2-chloronicotinate (CAS 1262132-93-3)
- 4-[4-(Benzyloxy)phenyl]-2-chlorobenzonitrile (CAS 1355247-14-1)
- Ethyl 5-(chlorosulfonyl)-3-methylthieno[2,3-b]pyridine-2-carboxylate (CAS 1240529-07-0)
- 4-[3-(Benzyloxy)phenyl]-2-chlorobenzonitrile (CAS 1355247-40-3)
- (E)-1-(4-(Difluoromethoxy)phenyl)ethan-1-one oxime (CAS 149774-14-1)
- Benzyl N-[1-(Aminomethyl)cycloheptyl]carbamate (CAS 1352999-90-6)
- 2-(4-Chlorophenoxy)-N-((4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl)methyl)acetamide (CAS 1091074-20-2)
- Imidapril Impurity 19 (CAS CATO-C4X-243919)
- 2,2,2-Trifluoro-1-(3-fluoro-4-(isopentyloxy)phenyl)ethan-1-one (CAS 1443349-26-5)
- 5-Amino-N-(2,5-dimethylphenyl)-1-(4-fluorobenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 902556-82-5)
- (2-Bromo-3-methoxypyridin-4-yl)methanol (CAS 191418-80-1)
- J81 (CAS 2257421-84-2)
- Benzyl 4-(3-aminoazetidin-1-yl)piperidine-1-carboxylate (CAS 883546-93-8)
- D-[Arg]30-Semaglutide (CAS CATO-C4X-222653)
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