Dimethylethoxysilane - ≥97% , CAS No.14857-34-2

CAS: 14857-34-2 Cat. No.: D191031 Molecular Weight: 104.23 EC Number: 238-921-7
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
EINECS 238-921-7 | DTXSID0051734 | P2H8FET3FK | AKOS006223692 | BRN 1731481 | FT-0604915 | A808787 | ethoxy(dimethyl)silicon | AS-49545 | 4-04-00-03991 (Beilstein Handbook Reference) | ?DIMETHYLETHOXYSILANE | Silane, ethoxydimethyl- | DIMETHYLETHOXYSILANE
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
D191031-1g
4
$10.90
5g
D191031-5g
2
$43.90
25g
D191031-25g
1
$118.90
100g
D191031-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$315.90
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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.

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Quality documents

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

📚

Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Product Application:

Dimethylethoxysilane (DMES), a volatile liquid, is used by NASA to waterproof the heatprotective silica tiles and blankets on the space shuttle. DMES readily produces a variety of products in the presence of small amounts of moisture or bases. DMES readily produces a variety of products in the presence of small amounts of moisture or bases.

Specifications

Synonyms
EINECS 238-921-7 | DTXSID0051734 | P2H8FET3FK | AKOS006223692 | BRN 1731481 | FT-0604915 | A808787 | ethoxy(dimethyl)silicon | AS-49545 | 4-04-00-03991 (Beilstein Handbook Reference) | ?DIMETHYLETHOXYSILANE | Silane, ethoxydimethyl- | DIMETHYLETHOXYSILANE
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Canonical SmilesCCO[Si](C)C
InChIKeyDRUOQOFQRYFQGB-UHFFFAOYSA-N
INCHI1S/C4H11OSi/c1-4-5-6(2)3/h4H2,1-3H3
Isomeric SMILES CCO[Si](C)C
UN Number 1993
Packing Group III
Molecular Weight 104.23
Reaxy-Rn 5804848
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=5804848&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.

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 ParentSilyl ethers
Alternative Parents Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Silyl ether - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as silyl ethers. These are organic compounds containing a silicon atom covalently bonded to an alkoxy group. They have the general formula R1R2R3Si-O-R4 (R4 = aryl, alkyl).
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.

7 results found

Lot NumberCertificate TypeDateItem
E2621140Certificate of AnalysisMay 23, 2026 D191031
H2209337Certificate of AnalysisFeb 04, 2026 D191031
H2209338Certificate of AnalysisFeb 04, 2026 D191031
H2209739Certificate of AnalysisFeb 04, 2026 D191031
G2211040Certificate of AnalysisJan 16, 2026 D191031
L1903137Certificate of AnalysisMay 13, 2025 D191031
G2131193Certificate of AnalysisMay 10, 2023 D191031
Chemical and Physical Properties
SolubilityHydrolyzes in water.
SensitivityMoisture sensitive
Boil Point(°C)55℃
Molecular Weight103.210 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count2
Exact Mass103.058 Da
Monoisotopic Mass103.058 Da
Topological Polar Surface Area9.200 Ų
Heavy Atom Count6
Formal Charge0
Complexity28.700
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
Citations of This Product
References
1. Shilong Zhang, Yajun Deng, Bo Wu, Yanling Yang, Jiangfan Chang, Xianhui Zhang, Bao Chen, Baiyi Chen, Jianhua Wu.  (2024)  A novel strategy for the synthesis and applications of epoxy-polysiloxane nanomicelles hybrid coating with antifouling and anticorrosion properties.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2024.136095]
Solution Calculators
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