1,1,1,3,3,3-Hexamethyl-2,2-diphenyltrisilane CAS 18549-83-2

Purity 97%+In StockPharmaceutical Standards
CAS No.18549-83-2
Molecular FormulaC18H28Si3
Molecular Weight328.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1,1,3,3,3-Hexamethyl-2,2-diphenyltrisilane CAS 18549-83-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 328.67 g/mol gives 1,1,1,3,3,3-Hexamethyl-2,2-diphenyltrisilane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,1,1,3,3,3-Hexamethyl-2,2-diphenyltrisilane (CAS 18549-83-2) is a high-purity analytical reference standard with the molecular formula C18H28Si3 and a molecular weight of 328.67 g/mol.

Based on its molecular formula C18H28Si3, 1,1,1,3,3,3-Hexamethyl-2,2-diphenyltrisilane contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 328.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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 FormulaC18H28Si3
Molecular Weight328.67 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962

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