Skip to content

Molekula

Methyl trimethylsilyl dimethylketene acetal

CAS 31469-15-5 (CH3)2C=C(OCH3)OSi(CH3)3 MW 174.31 Made to order

Methyl trimethylsilyl dimethylketene acetal is a silyl-protected ketene acetal used in organic synthesis for carbon-carbon bond formation, particularly in aldol-type reactions and as a masked ketone equivalent. It is a colorless to pale yellow liquid, stable under inert conditions. CAS: 31469-15-5, molecular formula: (CH3)2C=C(OCH3)OSi(CH3)3, molecular weight: 174.31 g/mol. Store at 2 to 8 °C. Warning signal word applies. Molekula supplies Methyl trimethylsilyl dimethylketene acetal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Methyl trimethylsilyl dimethylketene acetal is a silyl-protected ketene acetal used in organic synthesis for carbon-carbon bond formation, particularly in aldol-type reactions and as a masked ketone equivalent. It is a colorless to pale yellow liquid, stable under inert conditions. CAS: 31469-15-5, molecular formula: (CH3)2C=C(OCH3)OSi(CH3)3, molecular weight: 174.31 g/mol. Store at 2 to 8 °C. Warning signal word applies. Molekula supplies Methyl trimethylsilyl dimethylketene acetal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance Colourless transparent liquid
Assay 98% min

Storage & handling

Property Value
Storage Temperature 2 to 8 °C
Flash Point 30 C
Transport Class 3
Packing Group III
Shelf Life 24 months

Identification

Property Value
CAS Number 31469-15-5
Molecular Formula (CH3)2C=C(OCH3)OSi(CH3)3
Molecular Weight 174.31
EC / UN Number 3271
REACH Code Y110
Tariff Code 29319000

Safety & GHS

Warning
  • GHS pictogram — Explosive Explosive GHS01
  • GHS pictogram — Oxidizing Oxidizing GHS03

Hazard statements

  • H226 Flammable liquid and vapour
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

Precautionary statements

  • P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P302+352 IF ON SKIN: Wash with soap and water
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is methyl trimethylsilyl dimethylketene acetal used for?

It is primarily used as a protecting group reagent in organic synthesis, particularly for carbonyl compounds, and as a reagent in the formation of ketene acetals.

What is the chemical formula and molecular weight?

The formula is (CH3)2C=C(OCH3)OSi(CH3)3 with a molecular weight of 174.31 g/mol.

How should it be stored?

It should be stored at 2 to 8 °C, protected from light and moisture.

What grade is available?

Available in technical grade; specific purity details can be provided upon request.

Can Molekula supply it in bulk?

Yes, Molekula can supply methyl trimethylsilyl dimethylketene acetal in bulk quantities—please contact us for pricing and availability.

What documentation comes with the order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

Talk to a chemist
Documents Pricing
Request a quote
Tell us what you need and our sales team will come back with pricing and lead times.
Full name
Email
Product
Quantity
Note