70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated CAS 70900-21-9

Purity 97%+In StockPharmaceutical Standards
CAS No.70900-21-9
Molecular FormulaC2H6OSi
Molecular Weight74.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated CAS 70900-21-9 chemical structure

Description

The molecular framework of 70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated (C2H6OSi) is characterized by a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated (CAS 70900-21-9), molecular formula C2H6OSi and molecular weight 74.15 g/mol, is a CATO reference standard with documented purity and traceability.

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), 70900-21-9 Poly(dimethylsiloxane), hydride terminated MFCD00197934 Siloxanes and silicones, dimethyl hydrogen terminated 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 FormulaC2H6OSi
Molecular Weight74.15 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1977

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