3,5-Dichloro-4-n-pentylbenzophenone CAS 951887-77-7
| CAS No. | 951887-77-7 |
| Molecular Formula | C18H18Cl2O |
| Molecular Weight | 321.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,5-Dichloro-4-n-pentylbenzophenone is closely related to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,5-Dichloro-4-n-pentylbenzophenone (CAS 951887-77-7), molecular formula C18H18Cl2O and molecular weight 321.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,5-Dichloro-4-n-pentylbenzophenone (C18H18Cl2O) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. 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 321.24 g/mol, it falls into the moderately-high-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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,5-Dichloro-4-n-pentylbenzophenone 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 | C18H18Cl2O |
| Molecular Weight | 321.24 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 |
Related Dichloro Standards
- 3,4-Dichloro-4-n-pentylbenzophenone (CAS 951887-73-3)
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- Methyl 3-(5,7-dichloro-1H-benzo[d]imidazol-2-yl)benzoate (CAS 1024300-66-0)
- 2-(2,4-Dichloro-benzyl)-2H-indazole-3-carboxylic acid (CAS 123016-78-4)
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Recommended Standards
- 4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-[(thiophen-2-yl)carbonyl]piperidine (CAS 2016819-12-6)
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- 8-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4,5,9b-hexahydrobenzo[c]thieno[2,1-e]isothiazole 4-oxide (CAS 2169311-10-6)
- 1-(Bis(4-chlorophenyl)methyl)piperazine (CAS 27469-61-0)
- tert-Butyl 7-fluoroindoline-1-carboxylate (CAS 1823295-30-2)
- 3-(((1,5-Dimethyl-1H-pyrazol-4-yl)methyl)(methyl)carbamoyl)-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 1006441-46-8)
- 3,4-dihydro-2H-1,4-benzoxazine-4-sulfonamide (CAS 1235441-42-5)
- 2-(Pyrrolidin-1-ylmethyl)benzenesulfonamide (CAS 81629-87-0)
- 3419-34-9 CTK4H1886 Phosphorodithioic acid,O,O-bis(1-methylethyl) ester, potassium salt (1:1) (CAS 3419-34-9)
- 4-(Tert-Butoxycarbonylamino)Tetrahydrofuran-3-Yl Methanesulfonate (CAS 1391732-77-6)
- 2-(2,6-Dimethylpyrimidin-4-yl)-5-methyl-2H-1,2,3-triazole-4-carboxylic acid (CAS 1431728-26-5)
- 5-Ethyl-N,N-diisopropyl-3-methylisoxazole-4-carboxamide (CAS 106833-52-7)
- Lasmiditan Impurity 26 (CAS CATO-C4X-247826)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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