1,1,3,3-Tetramethoxy-1,3-dimethyldisiloxane - ≥99% , CAS No.18186-97-5

CAS: 18186-97-5 Cat. No.: D694940 Formula: C6H18O5Si2 Molecular Weight: 226.38 EC Number: 242-072-8
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
1,3-Dimethyltetramethoxydisiloxane
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
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Size
Germany (EU)
USA*
Price
Qty
250mg
D694940-250mg
Made to order · 8–12 wks
€17.27
1g
D694940-1g
Made to order · 8–12 wks
€51.98
5g
D694940-5g
Made to order · 8–12 wks
€164.78
Enter a quantity for the sizes you want to add.
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light,Argon charged Ships Wet ice 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.

Specifications

Synonyms
1,3-Dimethyltetramethoxydisiloxane
Specifications & Purity
≥99%
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥99%
Names and Identifiers
Canonical SmilesCO[Si](C)(OC)O[Si](C)(OC)OC
IUPAC Name[dimethoxy(methyl)silyl]oxy-dimethoxy-methylsilane
InChIKeyJWVHPGDCFVOYMQ-UHFFFAOYSA-N
INCHI1S/C6H18O5Si2/c1-7-12(5,8-2)11-13(6,9-3)10-4/h1-6H3
Isomeric SMILES CO[Si](C)(OC)O[Si](C)(OC)OC
Molecular Weight 226.38

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 Not available
Direct ParentAlkoxysilanes
Alternative Parents Silyl ethers  Organoheterosilanes  Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Alkoxysilane - Silyl ether - Organoheterosilane - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Organooxygen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as alkoxysilanes. These are organosilicon compounds with the general formula RO[Si](OR')(R'')(R''') (R,R' = organyl; R'',R''' = any atom).
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
SensitivityLight and air sensitive
Boil Point(°C)165°
Molecular Weight226.370 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count6
Exact Mass226.069 Da
Monoisotopic Mass226.069 Da
Topological Polar Surface Area46.200 Ų
Heavy Atom Count13
Formal Charge0
Complexity130.000
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
Documents & Articles
Solution Calculators
Reviews

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