Trimethoxyphenylsilane - ≥98%(GC) , CAS No.2996-92-1

CAS: 2996-92-1 Cat. No.: T140868 Formula: C9H14O3Si Molecular Weight: 198.29 Beilstein Registry Number: 2937896 EC Number: 221-066-9 PubChem CID: 18137
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(GC)
Synonyms
21TQE746S9 | DTXSID5040700 | EINECS 221-066-9 | NCGC00164032-01 | phenyl trimethoxy silane | Trimethoxyphenylsilane | UNII-21TQE746S9 | C9H14O3Si | InChI=1/C9H14O3Si/c1-10-13(11-2,12-3)9-7-5-4-6-8-9/h4-8H,1-3H | MFCD00025689 | NSC 93925 | CP0330 | NCGC002
Storage
Room temperature,Argon charged
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
25ml
T140868-25ml
3 In stock
—
$14.90
100ml
T140868-100ml
6 In stock
—
$32.90
500ml
T140868-500ml
6 In stock
—
$111.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Room temperature,Argon charged 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 45 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Trimethoxyphenylsilane (TMPS) is an organotrialkoxysilane that is used as a functional monomer in the sol-gel processing.

Application:

TMPS can also be used in the preparation of polytrimethoxyphenylsilane (PTMS) that facilitates the removal of graphene after chemical vapor deposition (CVD).Molecularly imprinted sol gels can be synthesized by using TMPS for the fabrication of localized surface plasmon resonance (LSPR).

Specifications

Synonyms
21TQE746S9 | DTXSID5040700 | EINECS 221-066-9 | NCGC00164032-01 | phenyl trimethoxy silane | Trimethoxyphenylsilane | UNII-21TQE746S9 | C9H14O3Si | InChI=1/C9H14O3Si/c1-10-13(11-2,12-3)9-7-5-4-6-8-9/h4-8H,1-3H | MFCD00025689 | NSC 93925 | CP0330 | NCGC002
Specifications & Purity
≥98%(GC)
Storage
Room temperature,Argon charged
Shipped In
Normal
Purity
≥98%(GC)
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504752867
Canonical Smiles
CO[Si](C1=CC=CC=C1)(OC)OC
IUPAC Name
trimethoxy(phenyl)silane
InChIKey
ZNOCGWVLWPVKAO-UHFFFAOYSA-N
INCHI
1S/C9H14O3Si/c1-10-13(11-2,12-3)9-7-5-4-6-8-9/h4-8H,1-3H3
Isomeric SMILES
CO[Si](C1=CC=CC=C1)(OC)OC
WGK Germany
3
RTECS
VV5252000
PubChem CID
18137
Molecular Weight
198.29
Beilstein
2937896

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 Alkoxysilanes
Direct ParentTrialkoxysilanes
Alternative Parents Benzene and substituted derivatives  Silyl ethers  Organoheterosilanes  Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Trialkoxysilane - Benzenoid - Monocyclic benzene moiety - Silyl ether - Organoheterosilane - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as trialkoxysilanes. These are organosilicon compounds with the general formula RO[Si](R')(OR'')OR''' (R-R''' = aliphatic organyl group).
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
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.

45 results found

Lot NumberCertificate TypeDateItem
J2616695Certificate of AnalysisOct 09, 2026 T140868
J2616694Certificate of AnalysisOct 09, 2026 T140868
J2616703Certificate of AnalysisOct 09, 2026 T140868
K2428609Certificate of AnalysisSep 04, 2026 T140868
E2608733Certificate of AnalysisApr 29, 2026 T140868
E2608732Certificate of AnalysisApr 29, 2026 T140868
E2608731Certificate of AnalysisApr 29, 2026 T140868
B2606124Certificate of AnalysisJan 29, 2026 T140868
B2606137Certificate of AnalysisJan 29, 2026 T140868
B2606138Certificate of AnalysisJan 29, 2026 T140868
B2606139Certificate of AnalysisJan 29, 2026 T140868
C2412521Certificate of AnalysisDec 12, 2025 T140868
C2412522Certificate of AnalysisDec 12, 2025 T140868
G2601122Certificate of AnalysisJul 21, 2025 T140868
H2512472Certificate of AnalysisJul 21, 2025 T140868
H2512487Certificate of AnalysisJul 21, 2025 T140868
H2512471Certificate of AnalysisJul 21, 2025 T140868
H2512426Certificate of AnalysisJul 21, 2025 T140868
D2502432Certificate of AnalysisMar 27, 2025 T140868
D2502436Certificate of AnalysisMar 27, 2025 T140868
C2511667Certificate of AnalysisMar 04, 2025 T140868
C2511666Certificate of AnalysisMar 04, 2025 T140868
C2511663Certificate of AnalysisMar 04, 2025 T140868
C2511662Certificate of AnalysisMar 04, 2025 T140868
K2428606Certificate of AnalysisNov 20, 2024 T140868
K2428607Certificate of AnalysisNov 20, 2024 T140868
K2428608Certificate of AnalysisNov 20, 2024 T140868
D2417576Certificate of AnalysisMar 21, 2024 T140868
D2417577Certificate of AnalysisMar 21, 2024 T140868
D2417575Certificate of AnalysisMar 21, 2024 T140868
D2417574Certificate of AnalysisMar 21, 2024 T140868
D2422013Certificate of AnalysisMar 21, 2024 T140868
D2422012Certificate of AnalysisMar 21, 2024 T140868
D2422011Certificate of AnalysisMar 21, 2024 T140868
C2412540Certificate of AnalysisMar 01, 2024 T140868
C2412523Certificate of AnalysisMar 01, 2024 T140868
H2210002Certificate of AnalysisJul 20, 2022 T140868
H2209672Certificate of AnalysisJul 20, 2022 T140868
H2209671Certificate of AnalysisJul 20, 2022 T140868
H2209670Certificate of AnalysisJul 20, 2022 T140868
J2309023Certificate of AnalysisJul 20, 2022 T140868
A2213480Certificate of AnalysisNov 20, 2021 T140868
A2213553Certificate of AnalysisNov 20, 2021 T140868
A2213541Certificate of AnalysisNov 20, 2021 T140868
A2213491Certificate of AnalysisNov 20, 2021 T140868
Chemical and Physical Properties
SolubilityReacts with water.
SensitivityMoisture sensitive.
Refractive Index1.468
Flash Point(°F)84.2 °F
Flash Point(°C)183 °F
Boil Point(°C)233°C
Melt Point(°C)-25 °C
Molecular Weight198.290 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count4
Exact Mass198.071 Da
Monoisotopic Mass198.071 Da
Topological Polar Surface Area27.700 Ų
Heavy Atom Count13
Formal Charge0
Complexity134.000
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
High-Refractive-Index vs Low-Refractive-Index Coating Materials: From AR/Waveguide Principles to a Formulation & Material-Selection Map (Including Product Category Tables A/B/C)
Why Material Properties Are Limited by Interfaces: Mechanism of Action and Selection Guide for Silane Coupling Agents (Tables 1–4)
Silane Precursors in Sol-Gel Film Formation: Precursor Selection and Its Influence on Film-Formation Outcomes
Preparation Methods and Precautions for Silane Coupling Agent Primer Solutions
Which Fillers and Substrates Are Suitable for Silane Coupling Agents: Surface Hydroxyls, Interfacial Bonding, and Experimental Verification
Application and Selection Guide for Alkyd Resin Coatings: Advantages, Limitations, Formulation Control, and Modification Directions
Understanding Silicone Resins from Their Structure: Siloxane Backbones, M/D/T/Q Units, and Coating Performance Regulation
Structure–Property Relationship of Silicone Resins: Mechanisms of Heat Resistance, Weatherability, Hydrophobicity, and Coating Performance Analysis
Silicone Resin Coating Formulation Design: From Application Conditions to Matching Resins, Pigments and Fillers, Curing, and Substrates
When Should You Choose Silicone Resin? Selection Comparison with Epoxy, Acrylic, Polyurethane, Fluororesin, and Other Coating Resins
What Is Silica Sol: Mechanism of Action, Application Scenarios, and Selection Criteria for Nanosilica Dispersions
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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