Tetrakis(trimethylsilyloxy)silane - ≥97% , CAS No.3555-47-3

CAS: 3555-47-3 Cat. No.: T169863 Molecular Weight: 384.84 EC Number: 222-613-4 PubChem CID: 19086
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
TETRAKIS(TRIMETHYLSILOXY)SILANE | 1,1,1,5,5,5-Hexamethyl-3,3-bis[(trimethylsilyl)oxy]trisiloxane | 55L9T9A11I | Tetrakis(trimethylsilyloxy)silane | Tetrakis(trimethylsilyl) orthosilicate | tetrakis(trimethylsilyl) silicate | Trisiloxane, 1,1,1,5,5,5-hexam
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
T169863-1g
3
$9.90
5g
T169863-5g
2
$10.90
25g
T169863-25g
3

$44.90

$67.90
Save $23.00 (33.87%)
100g
T169863-100g
2

$54.90

$82.90
Save $28.00 (33.78%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

application:

Tetrakis(trimethylsilyloxy)silane (TTMS) is an organosilicon compound used as a precursor to prepare nanostructured organosilicon polymer films by plasma-enhanced chemical vapor deposition (PECVD) at atmospheric pressure. TTMS along with cyclohexane can also be used to synthesize low dielectric constant SiCOH films by PECVD method.

Specifications

Synonyms
TETRAKIS(TRIMETHYLSILOXY)SILANE | 1, 1, 1, 5, 5, 5-Hexamethyl-3, 3-bis[(trimethylsilyl)oxy]trisiloxane | 55L9T9A11I | Tetrakis(trimethylsilyloxy)silane | Tetrakis(trimethylsilyl) orthosilicate | tetrakis(trimethylsilyl) silicate | Trisiloxane, 1, 1, 1, 5, 5, 5-hexam
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid504752924
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504752924
Canonical SmilesC[Si](C)(C)O[Si](O[Si](C)(C)C)(O[Si](C)(C)C)O[Si](C)(C)C
IUPAC Nametetrakis(trimethylsilyl) silicate
InChIKeyVNRWTCZXQWOWIG-UHFFFAOYSA-N
INCHI1S/C12H36O4Si5/c1-17(2,3)13-21(14-18(4,5)6,15-19(7,8)9)16-20(10,11)12/h1-12H3
Isomeric SMILES C[Si](C)(C)O[Si](O[Si](C)(C)C)(O[Si](C)(C)C)O[Si](C)(C)C
WGK Germany 3
PubChem CID 19086
Molecular Weight 384.84

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganometallic compounds
ClassOrganometalloid compounds
SubclassOrganosilicon compounds
Intermediate Tree Nodes Organoheterosilanes
Direct ParentTrialkylheterosilanes
Alternative Parents Organic metalloid salts  Organic oxoanionic compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Trialkylheterosilane - Organic silicate - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as trialkylheterosilanes. These are organoheterosilanes, bearing a silicon atom linked to three alkyl groups and one heteroatom.
External Descriptors Not available
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

5 results found

Lot NumberCertificate TypeDateItem
I2409282Certificate of AnalysisJun 10, 2026 T169863
H2224445Certificate of AnalysisMar 11, 2026 T169863
H2224446Certificate of AnalysisMar 11, 2026 T169863
H2224548Certificate of AnalysisMar 11, 2026 T169863
G1911010Certificate of AnalysisFeb 09, 2023 T169863
Chemical and Physical Properties
Refractive Index1.4480 to 1.4520
Flash Point(°F)168.8 °F
Flash Point(°C)76 °C
Boil Point(°C)220 °C
Melt Point(°C)-60℃
Molecular Weight384.840 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count8
Exact Mass384.146 Da
Monoisotopic Mass384.146 Da
Topological Polar Surface Area36.900 Ų
Heavy Atom Count21
Formal Charge0
Complexity266.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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