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1-Chlorocarbonyl-1-methylethyl acetate

CAS 40635-66-3(CH3)2C(OCOCH3)COClChemical Synthesis

1-Chlorocarbonyl-1-methylethyl acetate (CAS: 40635-66-3) is an organic compound with the linear formula (CH <sub>3</sub>)<sub>2</sub>C(OCOCH<sub>3</sub>)COCl and a molecular weight of 164.59 g/mol. This acid halide functions as a valuable building block in organic synthesis. Its reactive nature makes it useful for introducing specific functional groups in chemical research and development. Available from Tech Serve Solutions with a purity of 95%, it is supplied for laboratory and industrial applications.

IUPAC
α-Acetoxyisobutyryl chloride,2-Acetoxy-2-methylpropionyl chloride
Synonyms
α-Acetoxyisobutyryl chloride2-Acetoxy-2-methylpropionyl chloride
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1-Chlorocarbonyl-1-methylethyl acetate ((CH3)2C(OCOCH3)COCl) — chemical structure, CAS 40635-66-3; Chemistry, fine chemical supplied by Tech Serve Solutions
Acid HalidesBuilding BlocksCarbonyl CompoundsChemical SynthesisOrganic Building Blocks
01 /Applications

Organic Synthesis Intermediate

Serves as a versatile intermediate in the synthesis of complex organic molecules. Its acyl chloride functionality readily participates in acylation reactions.

Building Block for Specialty Chemicals

Utilised as a key building block for the preparation of various specialty chemicals. The compound allows for the incorporation of the 2-acetoxy-2-methylpropionyl moiety into target structures.

Reagent in Chemical Research

Employed as a reagent in academic and industrial research laboratories for developing new synthetic methodologies and novel chemical entities. Its specific structure facilitates targeted chemical transformations.

02 /Properties
Molecular weight164.59
Linear formula(CH3)2C(OCOCH3)COCl
Assay95%
Boiling point55-56 °C/6 mmHg(lit.)
Density1.136 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.428(lit.)
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
Danger

Hazard statements

  • H314Causes severe skin burns and eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point68 °C / 154.4 °F
Transport (UN / ADR)UN 3265 8 / PGII
Water hazard class (WGK, DE)3
Hazard codes (EU)C
Risk statements (R)14-34
Safety statements (S)26-36/37/39-45
Supplemental hazardsReacts violently with water.

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

04 /Identifiers & registry
CAS number
40635-66-3
MDL number
MFCD00000708
PubChem substance
24859568
Beilstein registry
507772
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 1-Chlorocarbonyl-1-methylethyl acetate used for?

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1-Chlorocarbonyl-1-methylethyl acetate is used as an intermediate and building block in organic synthesis, primarily for introducing the 2-acetoxy-2-methylpropionyl group into molecules during chemical research and the development of specialty chemicals.

What is the CAS number and chemical formula for 1-Chlorocarbonyl-1-methylethyl acetate?

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The CAS number is 40635-66-3, and the linear chemical formula is (CH <sub>3</sub>)<sub>2</sub>C(OCOCH<sub>3</sub>)COCl.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies 1-Chlorocarbonyl-1-methylethyl acetate with an assay of 95%. This is a technical/research grade material, and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.

How should 1-Chlorocarbonyl-1-methylethyl acetate be handled safely?

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This compound is corrosive and reacts violently with water, causing severe skin burns and eye damage (H314). Handle with extreme caution, wearing appropriate personal protective equipment including faceshields, gloves, goggles, and suitable respiratory protection (e.g., type ABEK respirator filter). Ensure it is kept away from moisture.

Is 1-Chlorocarbonyl-1-methylethyl acetate packed, shipped, or exported by TSS?

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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 1-Chlorocarbonyl-1-methylethyl acetate, and adheres to all relevant shipping regulations for hazardous materials (UN 3265, Class 8, PGII).

How can I request a quote or sample for 1-Chlorocarbonyl-1-methylethyl acetate?

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To request a quote or sample, please contact the Tech Serve Solutions sales department through our website or by phone, providing your specific requirements and shipping details.

Need 1-Chlorocarbonyl-1-methylethyl acetate in a specific grade or volume?