Diethoxydimethylsilane - ≥98% , CAS No.78-62-6

CAS: 78-62-6 Cat. No.: D103640 Formula: C6H16O2Si Molecular Weight: 148.28 Beilstein Registry Number: 1736110 EC Number: 201-127-6
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
DEDMS | DMDES | 4-04-00-04101 (Beilstein Handbook Reference) | SILANE,DIETHOXY,DIMETHYL | Diethoxy(dimethyl)silane | CD5600 | J-520257 | EINECS 201-127-6 | Silane, diethoxydimethyl- | D0454 | UN2380 | Dimethyl-diethoxysilan | NSC77085 | NSC-77085 | WLN: 2
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
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Size
USA
Germany (EU)*
Price
Qty
25ml
D103640-25ml
In stock ≥10
7 In stock

$11.90

$16.90
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100ml
D103640-100ml
5 In stock
3 In stock

$21.90

$28.90
Save $7.00 (24.22%)
500ml
D103640-500ml
3 In stock
—

$59.90

$87.90
Save $28.00 (31.85%)
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged Ships FedEx DG Service Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 39 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Product Description
Diethoxydimethylsilane (DEDMS) is an organically modified silicate (ORMOSIL) with two methyl groups in each unit that facilitate the hydrophobic characteristics. It is mainly utilized to functionalize a variety of substrates.
Product Application
Diethoxydimethylsilane (DMDES) may be used to modify epoxy resin and the surfaces of pure silica and Pd/SiO2 hydrogen gas sensors. Surface modification results in enhanced gas sensing properties of the sensors.Diethoxydimethylsilane may be used as a precursor for the synthesis of ultrafine SiC powder.Studies report its use as a precursor for ORMOSIL (Organically modified SILicates) and thin a-SiOxCyHz films. The composite of DEDMS and triethoxymethylsilane can be used to synthesize a liquid precursor resin for the preparation of silicon oxycarbide (SiOC). It can form a sol-gel coating on polyamide-polyethylene (PA/PE), which can be used as an anti-oxidizing food packaging material. It can also be used as a precursor in the synthesis of polydimethylsiloxane, which forms an anti-corrosive coating composite with waterborne polyurethane.

Specifications

Synonyms
DEDMS | DMDES | 4-04-00-04101 (Beilstein Handbook Reference) | SILANE,DIETHOXY,DIMETHYL | Diethoxy(dimethyl)silane | CD5600 | J-520257 | EINECS 201-127-6 | Silane, diethoxydimethyl- | D0454 | UN2380 | Dimethyl-diethoxysilan | NSC77085 | NSC-77085 | WLN: 2
Specifications & Purity
≥98%
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504753827
Canonical Smiles
CCO[Si](C)(C)OCC
IUPAC Name
diethoxy(dimethyl)silane
InChIKey
YYLGKUPAFFKGRQ-UHFFFAOYSA-N
INCHI
1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
Isomeric SMILES
CCO[Si](C)(C)OCC
WGK Germany
2
RTECS
VV3590000
UN Number
2380
Packing Group
II
Molecular Weight
148.28
Beilstein
1736110
Reaxy-Rn
1736110
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1736110&ln=

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.

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📊 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:

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

41 results found

Lot NumberCertificate TypeDateItem
L1714046Certificate of AnalysisOct 13, 2026 D103640
E2613245Certificate of AnalysisApr 29, 2026 D103640
G2630430Certificate of AnalysisApr 29, 2026 D103640
G2630249Certificate of AnalysisApr 29, 2026 D103640
G2630248Certificate of AnalysisApr 29, 2026 D103640
G2630242Certificate of AnalysisApr 29, 2026 D103640
E2613576Certificate of AnalysisApr 29, 2026 D103640
E2613246Certificate of AnalysisApr 29, 2026 D103640
E2613244Certificate of AnalysisApr 29, 2026 D103640
F2526329Certificate of AnalysisJun 10, 2025 D103640
C2609095Certificate of AnalysisJun 10, 2025 D103640
C2626212Certificate of AnalysisJun 10, 2025 D103640
F2526312Certificate of AnalysisJun 10, 2025 D103640
F2526288Certificate of AnalysisJun 10, 2025 D103640
F2526287Certificate of AnalysisJun 10, 2025 D103640
C2127018Certificate of AnalysisOct 21, 2024 D103640
I2423685Certificate of AnalysisSep 12, 2024 D103640
I2423139Certificate of AnalysisSep 12, 2024 D103640
I2423138Certificate of AnalysisSep 12, 2024 D103640
I2423137Certificate of AnalysisSep 12, 2024 D103640
I2423136Certificate of AnalysisSep 12, 2024 D103640
D2501219Certificate of AnalysisJul 10, 2024 D103640
D2501220Certificate of AnalysisJul 10, 2024 D103640
F2506369Certificate of AnalysisJul 10, 2024 D103640
F2506370Certificate of AnalysisJul 10, 2024 D103640
D2429190Certificate of AnalysisApr 11, 2024 D103640
D2429189Certificate of AnalysisApr 11, 2024 D103640
D2429188Certificate of AnalysisApr 11, 2024 D103640
D2429187Certificate of AnalysisApr 11, 2024 D103640
A2417296Certificate of AnalysisJan 08, 2024 D103640
A2417297Certificate of AnalysisJan 08, 2024 D103640
A2417298Certificate of AnalysisJan 08, 2024 D103640
A2417299Certificate of AnalysisJan 08, 2024 D103640
A2417300Certificate of AnalysisJan 08, 2024 D103640
A2417295Certificate of AnalysisJan 08, 2024 D103640
B2309068Certificate of AnalysisNov 18, 2022 D103640
K2230407Certificate of AnalysisNov 18, 2022 D103640
K2230408Certificate of AnalysisNov 18, 2022 D103640
B2216361Certificate of AnalysisDec 20, 2021 D103640
B2216389Certificate of AnalysisDec 20, 2021 D103640
B2216445Certificate of AnalysisDec 20, 2021 D103640
Chemical and Physical Properties
SolubilityReacts with water.
SensitivityMoisture sensitive.&light sensitive
Refractive Index1.3811
Flash Point(°F)42.8 °F
Flash Point(°C)11℃
Boil Point(°C)114°C
Melt Point(°C)-70 °C
Molecular Weight148.280 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count4
Exact Mass148.092 Da
Monoisotopic Mass148.092 Da
Topological Polar Surface Area18.500 Ų
Heavy Atom Count9
Formal Charge0
Complexity65.500
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
Citations of This Product
Solution Calculators
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