Ethyl 3,3-dimethylacrylate

CAS 638-10-8(CH3)2C=CHCO2C2H5Chemical Synthesis

Ethyl 3,3-dimethylacrylate (CAS: 638-10-8), a C7 ester with the linear formula (CH3)2C=CHCO2C2H5 and a molecular weight of 128.17 g/mol, is a versatile organic building block. Primarily utilised in chemical synthesis, it serves as a key intermediate in the production of complex molecules. This compound is supplied by Tech Serve Solutions with an assay of 98%.

IUPAC: Ethyl 3-methylcrotonate
Synonyms: (CH3)2C=CHCO2C2H5Ethyl 3-methylcrotonate

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Ethyl 3,3-dimethylacrylate ((CH3)2C=CHCO2C2H5) — chemical structure, CAS 638-10-8; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksC6 to C7Carbonyl CompoundsChemical SynthesisEsters

01 /Applications

Synthesis of Sulfur-Containing Compounds

Ethyl 3,3-dimethylacrylate has been employed in the synthesis of 3-benzylmercapto-3-methylbutanoic acid ethyl ester, showcasing its utility in creating molecules with specific functional groups.

Precursor for Pyrethroid Insecticides

This ester functions as a precursor in the synthesis of cis-2-cyano-3,3-dimethylcyclopropanecarboxylic acid, a vital component in the production of cis-pyrethroids.

Retinoic Acid Synthesis

Ethyl 3,3-dimethylacrylate is utilised in the preparation of isotopically labelled compounds, such as 1-[13CD3]-9-cis-retinoic acid, important for research applications.

02 /Properties

Molecular weight	128.17
Linear formula	(CH3)2C=CHCO2C2H5
Assay	98%
Boiling point	154-155 °C(lit.)
Density	0.922 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.436(lit.)
Application	Ethyl 3,3-dimethylacrylate was used in the synthesis of:• 3-benzylmercupto-3-methylbutanoic acid ethylester1• cis-2-cyano-3,3-dimethylcyclopropanecarboxylic acid, precursor for the synthesis of cis-pyrethroids2• 1-[13CD3]-9-cis-retinoic acid3

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Warning

Hazard statements

H226Flammable liquid and vapour

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	34 °C / 93.2 °F
Transport (UN / ADR)	UN 3272 3 / PGIII
Water hazard class (WGK, DE)	2
Risk statements (R)	10
Safety statements (S)	16-29-33

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

638-10-8

MDL number

MFCD00009187

PubChem substance

24851644

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Ethyl 3,3-dimethylacrylate used for?

Ethyl 3,3-dimethylacrylate is used as a building block in chemical synthesis, notably in the preparation of sulfur-containing compounds, precursors for pyrethroid insecticides, and isotopically labelled retinoic acid derivatives.

What are the CAS number and chemical formula for Ethyl 3,3-dimethylacrylate?

The CAS number for Ethyl 3,3-dimethylacrylate is 638-10-8, and its linear formula is (CH3)2C=CHCO2C2H5.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Ethyl 3,3-dimethylacrylate with a purity of 98%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.

How should Ethyl 3,3-dimethylacrylate be handled safely?

Ethyl 3,3-dimethylacrylate is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection suitable for organic vapours, and ensure adequate ventilation away from ignition sources.