Heptamethyldisilazane CAS 920-68-3

Purity 97%+In StockPharmaceutical Standards
CAS No.920-68-3
Molecular FormulaC7H21NSi2
Molecular Weight175.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Heptamethyldisilazane CAS 920-68-3 chemical structure

Description

CATO supplies Heptamethyldisilazane (CAS 920-68-3), a certified reference material (molecular formula C7H21NSi2, MW 175.42 g/mol) for analytical method development and quality control.

Owing to an organic framework, Heptamethyldisilazane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 175.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC7H21NSi2
Molecular Weight175.42 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)-2.0
CAS Registry Year (est.)1957
Nitrogen Atoms1

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