(4-Chloro-3-methylphenyl)(3,5-dichlorophenyl)methanone CAS 951891-38-6
| CAS No. | 951891-38-6 |
| Molecular Formula | C14H9Cl3O |
| Molecular Weight | 299.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 299.58 g/mol gives (4-Chloro-3-methylphenyl)(3,5-dichlorophenyl)methanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(4-Chloro-3-methylphenyl)(3,5-dichlorophenyl)methanone (CAS 951891-38-6), molecular formula C14H9Cl3O and molecular weight 299.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4-Chloro-3-methylphenyl)(3,5-dichlorophenyl)methanone (C14H9Cl3O) contains a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 299.58 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.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H9Cl3O |
| Molecular Weight | 299.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 | Cl-containing |
Related Chloro Standards
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Recommended Standards
- 4,6-Dichloro-5-(2-chlorophenyl)-2-cyclopropylpyrimidine (CAS 1523025-65-1)
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- Empagliflozin impurity 260 (CAS CATO-C4X-1065260)
- 2-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)ethan-1-one (CAS 94171-11-6)
- 2,2′-Dibromo-5,5′-diiodo-1,1′-biphenyl (CAS 852139-02-7)
- 2-Ethyl-2-(((2-fluorobenzyl)oxy)methyl)-5,5-dimethyltetrahydrofuran (CAS 866150-28-9)
- Methyl (3-bromo-1H-1,2,4-triazol-1-yl)acetate (CAS 709021-70-5)
- N4-(2-Bromophenyl)-N2-butyl-L-asparagine (CAS 1047679-71-9)
- 3-Cyclopentyl-2-methylpropan-1-amine (CAS 1247521-28-3)
- (R)-3-(1-Aminobutyl)benzonitrile hydrochloride (CAS 1212968-03-0)
- (4-Aminophenyl)glycine (CAS 2835-08-7)
- Enzalutamide Impurity N7 (CAS 143782-23-4)
- 6-Chloro-3,4-dihydro-1H-benzo[b]azepin-5(2H)-one (CAS 247237-58-7)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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