4-n-Butyl-3,5-dichlorobenzophenone CAS 951889-00-2
| CAS No. | 951889-00-2 |
| Molecular Formula | C17H16Cl2O |
| Molecular Weight | 307.21 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 4-n-Butyl-3,5-dichlorobenzophenone.
4-n-Butyl-3,5-dichlorobenzophenone (CAS 951889-00-2), molecular formula C17H16Cl2O and molecular weight 307.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-n-Butyl-3,5-dichlorobenzophenone (C17H16Cl2O) is characterized by a steroid core, a hydroxyl group, an ether linkage, 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-n-Butyl-3,5-dichlorobenzophenone 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 | C17H16Cl2O |
| Molecular Weight | 307.21 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 |
| 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 |
Recommended Standards
- 3-Bromo-2-(thiomethyl)benzophenone (CAS 951888-12-3)
- Cyclapolin 9 (CAS 40533-25-3)
- 3,5-Dichloro-3-(3,5-dimethylphenyl)propiophenone (CAS 898781-07-2)
- N-(2-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)butan-1-amine (CAS 2377610-92-7)
- 2-Ethyl-2-(propan-2-yl)cyclopropane-1-carboxylic acid (CAS 1247433-90-4)
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- (1-Chloro-3,4-dihydronaphthalen-2-yl)methanol (CAS 128104-82-5)
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- (4-Methylphenyl)[1-[(4-methylphenyl)sulfonyl]-1H-pyrrol-3-yl]methanone (CAS 1393442-27-7)
- tert-Butyl 4-(2-ethoxy-1-fluoro-2-oxoethylidene)piperidine-1-carboxylate (CAS 672957-85-6)
- 3-Ethoxy-2,6-difluorobenzyl bromide (CAS 1092461-30-7)
- 2-((4-Bromophenyl)thio)-2,2-difluoroacetic acid (CAS 1515653-78-7)
- (6-Bromo-1-(tert-butoxycarbonyl)-1H-indol-2-yl)boronic acid (CAS 1217500-59-8)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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