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Ethyl oxalyl chloride

CAS 4755-77-5 C4H5ClO3 MW 136.53 In stock

Ethyl oxalyl chloride is a reactive organic compound used in synthetic chemistry, particularly as a reagent for forming esters and amides. It is a colorless to pale yellow liquid with a pungent odor. CAS: 4755-77-5, Molecular formula: C4H5ClO3, Molecular weight: 136.53 g/mol. Store at ambient temperature. Hazard symbol: Danger. Molekula supplies Ethyl oxalyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Ethyl oxalyl chloride is a reactive organic compound used in synthetic chemistry, particularly as a reagent for forming esters and amides. It is a colorless to pale yellow liquid with a pungent odor. CAS: 4755-77-5, Molecular formula: C4H5ClO3, Molecular weight: 136.53 g/mol. Store at ambient temperature. Hazard symbol: Danger. Molekula supplies Ethyl oxalyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance Clear pale colourless/ yellow light/ brown liquid

Storage & handling

Property Value
Storage Temperature Ambient
Flash Point 41 C
Transport Class 8 (3)
Packing Group II
Shelf Life 36 months
Acidity Acid

Identification

Property Value
CAS Number 4755-77-5
Molecular Formula C4H5ClO3
Molecular Weight 136.53
SMILES CCOC(=O)C(=O)Cl
EC / UN Number 2920
REACH Code Y110
TSCA Listed Yes
HTS Code 2917194000
Tariff Code 2917198090

Safety & GHS

Danger
  • GHS pictogram — Explosive Explosive GHS01
  • GHS pictogram — Oxidizing Oxidizing GHS03
  • GHS pictogram — Compressed Gas Compressed Gas GHS04

Hazard statements

  • EUH029 Contact with water liberates toxic gas
  • H226 Flammable liquid and vapour
  • H290 May be corrosive to metals
  • H314 (sub cat. 1B) Causes severe skin burns and eye damage
  • H335 May cause respiratory irritation

Precautionary statements

  • P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
  • P220 Keep/Store away from clothing/combustible materials
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
  • P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
  • 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 ethyl oxalyl chloride used for?

It is primarily used as a reagent in organic synthesis, particularly for the formation of esters and acyl chlorides.

What is the chemical formula and molecular weight of ethyl oxalyl chloride?

The formula is C4H5ClO3 with a molecular weight of 136.53 g/mol.

How should ethyl oxalyl chloride be stored?

It should be stored at ambient temperature, away from moisture and incompatible materials.

What grade of ethyl oxalyl chloride does Molekula supply?

Molekula supplies ethyl oxalyl chloride in reagent grade.

Can Molekula supply ethyl oxalyl chloride in bulk?

Yes, Molekula can supply ethyl oxalyl chloride in bulk quantities upon request.

What documentation comes with an order of ethyl oxalyl chloride?

Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).

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

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