Trichloro(undecyl)silane CAS 18052-07-8
| CAS No. | 18052-07-8 |
| Molecular Formula | C11H23Cl3Si |
| Molecular Weight | 289.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Trichloro(undecyl)silane is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Trichloro(undecyl)silane (CAS 18052-07-8), molecular formula C11H23Cl3Si and molecular weight 289.74 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Trichloro(undecyl)silane (C11H23Cl3Si) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of -1.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 289.74 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.
As a certified reference material (CRM), Trichloro(undecyl)silane 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 | C11H23Cl3Si |
| Molecular Weight | 289.74 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Trichloro Standards
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- 3,3,5-Trichloro-[1,1'-biphenyl]-4,4(3H)-diol (CAS 53905-35-4)
- 1,2,3-Trichloro-6-fluorodibenzo[b,d]furan (CAS 669767-00-4)
- Methyl4,6,7-trichloro-quinoline-2-carboxylate (CAS 198696-84-3)
- 1,1,1-Trichloro-3-(quinolin-2-yl)propan-2-ol (CAS 56211-74-6)
- 2,4,5-Trichloro-N-ethylbenzenesulfonamide (CAS 101257-20-9)
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Recommended Standards
- 2-(5-Chloro-6-oxo-4-thiomorpholinopyridazin-1(6H)-yl)acetic acid (CAS 1707394-29-3)
- 7-methoxy-1-oxo-2,3,4,5-tetrahydro-1H-2-benzazepine-8-sulfonyl chloride (CAS 1955523-95-1)
- 2-Chloro-5-(pyrrolidine-1-sulfonyl)benzoic acid (CAS 151104-21-1)
- (2E)-3-(4-Chlorophenyl)-2-cyano-N-(1,3-thiazol-2-yl)prop-2-enamide (CAS 958266-51-8)
- 3-(Furan-2-yl)-3,4-dihydro-2H-pyrrol-5-amine (CAS 773010-76-7)
- [(2R,3R,4R,5R,6S)-3,4,6-triacetoxy-5-[(2-azidoacetyl)amino]tetrahydropyran-2-yl]methyl acetate (CAS 1404472-50-9)
- 4-((5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)methyl)morpholine (CAS 950603-39-1)
- 4-(4-Bromophenyl)-2-methylthiazole (CAS 66047-74-3)
- 2-(4-((1H-Benzo[d]imidazol-2-yl)amino)phenyl)acetic acid (CAS 917763-67-8)
- 4-Chloroquinoline-6,7-diol (CAS 1256637-72-5)
- 3-(3-methylpyridin-2-yl)prop-2-enoic acid hydrochloride (CAS 1461726-89-5)
- 3-(2-Ethyl-1H-imidazol-1-yl)piperidine (CAS 1249820-42-5)
- Ethyl 2-(2-cyanophenyl)acetate (CAS 67237-76-7)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
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