Dichloro(methyl)(p-tolyl)silane CAS 18236-57-2
| CAS No. | 18236-57-2 |
| Molecular Formula | C8H10Cl2Si |
| Molecular Weight | 205.16 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 Dichloro(methyl)(p-tolyl)silane.
Dichloro(methyl)(p-tolyl)silane (CAS 18236-57-2), molecular formula C8H10Cl2Si and molecular weight 205.16 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Dichloro(methyl)(p-tolyl)silane (C8H10Cl2Si) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 205.16 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C8H10Cl2Si |
| Molecular Weight | 205.16 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- Ethylvanillin acetate (CAS 72207-94-4)
- 3-(Difluoromethyl)pyridine-2-carbonitrile (CAS 1211583-77-5)
- 1-(3,5-Dimethoxyphenyl)pentan-1-one (CAS 5333-29-9)
- 2,2,2-Trifluoro-1-(3-(isopentyloxy)-4-methylphenyl)ethan-1-one (CAS 1443349-47-0)
- 4-Nitro-[1,1':3',1''-terphenyl]-5'-ol (CAS 98124-35-7)
- (S)-4,4-difluoro-3-(3-fluoro-1H-pyrazol-1-yl)butanoic acid (CAS 2227197-93-3)
- Liraglutide Impurity 18 TFA Salt (CAS CATO-C4X-199218)
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