(4-Chloro-3-methylphenyl)(3,4-difluorophenyl)methanone CAS 951891-29-5
| CAS No. | 951891-29-5 |
| Molecular Formula | C14H9ClF2O |
| Molecular Weight | 266.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (4-Chloro-3-methylphenyl)(3,4-difluorophenyl)methanone 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.
(4-Chloro-3-methylphenyl)(3,4-difluorophenyl)methanone (CAS 951891-29-5) is a high-purity analytical reference standard with the molecular formula C14H9ClF2O and a molecular weight of 266.67 g/mol.
The molecular framework of (4-Chloro-3-methylphenyl)(3,4-difluorophenyl)methanone (C14H9ClF2O) is characterized by a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H9ClF2O |
| Molecular Weight | 266.67 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- Methyl 2-((5-chloro-2-fluorophenyl)sulfonyl)acetate (CAS 1779133-08-2)
- 8-Chloro-3-(methylthio)-6-(trifluoromethyl)imidazo[1,5-a]pyridine (CAS 1823188-26-6)
- (3-Chloro-4-methylphenyl)(3,4-difluorophenyl)methanone (CAS 951891-00-2)
- (3-Chloro-4-methylphenyl)(3,5-difluorophenyl)methanone (CAS 951891-02-4)
- (4-Chloro-3-methylphenyl)(3,5-difluorophenyl)methanone (CAS 951891-32-0)
- Methyl 2-((3-chloro-4-fluorophenyl)sulfonyl)acetate (CAS 942905-03-5)
- 1-((4-Chloro-2-methylphenoxy)methyl)-1h-pyrazole-3-carboxylic acid (CAS 1004193-09-2)
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Recommended Standards
- (6-(Trifluoromethyl)tetrahydro-2H-pyran-2-yl)methanesulfonyl chloride (CAS 2137602-51-6)
- methyl 2-[4-(chlorosulfonyl)-2-fluorophenyl]acetate (CAS 1909337-52-5)
- 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chloride (CAS 88398-42-9)
- 2-((Chloromethyl)thio)-6-methyl-4-(trifluoromethyl)nicotinonitrile (CAS 286833-00-9)
- 7-Chloro-1H-indazole-3-carbaldehyde (CAS 885519-02-8)
- Benzyl 1,8-diazaspiro[4.6]undecane-8-carboxylate (CAS 1160246-79-6)
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- N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-N6-(1-thioxotetradecyl)-L-Lysine, 97% (CAS 1383918-40-8)
- 2-(2-furanylmethylthio)-1H-quinazolin-4-one 2-(furan-2-ylmethylsulfanyl)-1H-quinazolin-4-one 871-84-1 A842028 (CAS 871-84-1)
- Ethyl 1-(4-bromophenyl)-5-fluoro-1H-pyrazole-4-carboxylate (CAS 1269293-78-8)
- 4-Methylbenzoxazole (CAS 107165-67-3)
- 4-(4-Fluorobenzylidene)-2-methyloxazol-5(4H)-one (CAS 586-08-3)
- 1-Fluoro-5-methoxy-2,4-dinitrobenzene (CAS 394-18-3)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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