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Home/Compounds/CAS 70900-21-9
Formula C6H20O2Si3MW 208.48Research-use catalog entryCOA/SDS by request

Bis(dimethylsilyloxy)-dimethylsilane

CAS Number: 70900-21-9

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Available Options

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Loading RDKit molecule structure...
InChIKey: HZBDPZBVINJJET-UHFFFAOYSA-NC6H20O2Si3 | MW 208.48

Chemical Absolute Identifiers

CAS Number

70900-21-9

PubChem CID

70921

Molecular Formula

C6H20O2Si3

Molecular Weight

208.48 g/mol

Exact Mass

208.077109

InChIKey

HZBDPZBVINJJET-UHFFFAOYSA-N

SMILES String

C[SiH](C)O[Si](C)(C)O[SiH](C)C

Physical Properties

No physical property values available.

Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.

Catalog Facts

Structural features

Bis(dimethylsilyloxy)-dimethylsilane (CAS 70900-21-9) is listed in the Materials Science portfolio, with molecular formula C6H20O2Si3 and molecular weight 208. 48 g/mol.

Sourcing context

Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.

Research use context

Intended for materials chemistry research and formulation screening workflows.

Documentation needs

COA/SDS status, availability, lead time, pack size, and shipment documentation can be confirmed during quotation.

Applications & Classification

Materials ScienceResearch intermediateCustom synthesis building blockResearch chemical sourcingCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow

Safety & Handling

Safety and handling reference content is available through documentation requests.

For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.

Preliminary Safety Reference

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Names & Synonyms / External Identifiers

Chemical Name

Bis(dimethylsilyloxy)-dimethylsilane

Names & Synonyms

Bis(dimethylsilyloxy)-dimethyl-silane1,1,3,3,5, 5-hexamethyltrisiloxane1,1,3,3,5,5- hexamethyltrisiloxanePolysiloxanes di-Me hydrogen-terminatedPolydimethylsiloxane, hydride terminated, MW 875, viscosity 7 cSt., SiH content 0.230%, equivalent weight 438
External Identifiers
WIKIDATA ID: Q63408777
Experimental Spectrum References
13C NMR Spectra — Sigma-Aldrich Co. LLC.1H NMR Spectra — Sigma-Aldrich Co. LLC.ATR-IR SpectraFTIR Spectra — Forensic Spectral Research

Documentation & Compliance Facts

Compliance Facts

Shipment review: Required

Documentation available by request

Certificate of Analysis (COA): By request

Supplier Safety Data Sheet (SDS): By request

Purity and pack size confirmation: By request

Availability and lead time review: Confirmed by RFQ

Shipment documentation review: By request

For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference

What happens after RFQ

  1. 1We review the CAS identity, quantity, and documentation request.
  2. 2We check sourcing options, supplier availability, COA/SDS, purity, pack size, and lead time.
  3. 3We review destination and shipment documentation needs when applicable.
  4. 4We follow up with a quotation or clarification request.

Text Reference Cues

Show non-linked catalog cues

Non-public related references

1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-HexadecamethyloctasiloxaneCAS 19095-24-0
AC1LB8OTCAS 19095-23-9
1,1,3,3,5,5,7,7,9,9,11,11-DodecamethylhexasiloxaneCAS 995-82-4
1,1,3,3,5,5,7,7,9,9-DecamethylpentasiloxaneCAS 995-83-5

Non-public references are shown as text only and do not imply equivalence, availability, or shared use.

Catalog navigation

Related Catalog Entries

Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.

CAS 19095-24-01,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-HexadecamethyloctasiloxaneCAS 19095-23-9AC1LB8OTCAS 1002310-00-0Tert-butyl 1-(2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethylcarbamateCAS 1005174-17-3(E)-3-(2-Propyl-6-(trifluoromethyl)pyridin-3-yl)acrylic acidCAS 1018125-49-92-(3-Cyclopropyl-6-ethyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acidCAS 1018128-07-8Isopropyl 4-chloro-2-methylquinoline-6-carboxylateCAS 1018142-22-76-cyclopropyl-1-(2,2-difluoroethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acidCAS 1018144-00-72-(3-Cyclopropyl-6-isopropyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acid

RFQ questions for CAS 70900-21-9

What are the key identifiers for Bis(dimethylsilyloxy)-dimethylsilane (CAS 70900-21-9)?

Bis(dimethylsilyloxy)-dimethylsilane is identified by CAS 70900-21-9, with molecular formula C6H20O2Si3, molecular weight 208.48, InChIKey HZBDPZBVINJJET-UHFFFAOYSA-N.

Can I request a COA for CAS 70900-21-9?

Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.

Can I request supplier SDS for Bis(dimethylsilyloxy)-dimethylsilane?

Yes. Supplier SDS can be requested through the RFQ workflow before handling, storage, shipment, or procurement decisions.

Is CAS 70900-21-9 available for quotation?

Availability, pack size, lead time, and pricing are confirmed through RFQ.

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