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Ethyl chloroformate

Ethyl chloroformate
Ethyl chloroformate
Chemical Name:
Ethyl chloroformate
ECF;tl423;TL 423;cathylchloride;Cathyl chloride;Choroformicester;etilcloroformiato;AKOS BBS-00004329;Ethylchlorformiat;Etil cloroformiato
Molecular Formula:
Formula Weight:
MOL File:

Ethyl chloroformate Properties

Melting point:
-81 °C
Boiling point:
94 °C
1.139 g/mL at 20 °C
vapor density 
3.74 (vs air)
vapor pressure 
3.42 psi ( 20 °C)
refractive index 
n20/D 1.395(lit.)
Flash point:
57 °F
storage temp. 
White to off-white
Water Solubility 
Moisture Sensitive
CAS DataBase Reference
541-41-3(CAS DataBase Reference)
NIST Chemistry Reference
Carbonochloridic acid, ethyl ester(541-41-3)
EPA Substance Registry System
Carbonochloridic acid, ethyl ester(541-41-3)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,T+,N
Risk Statements  11-22-26-34-50
Safety Statements  9-16-26-28-33-36/37/39-45-61
RIDADR  UN 1182 6.1/PG 1
WGK Germany  1
RTECS  LQ6125000
HazardClass  6.1
PackingGroup  I
Hazardous Substances Data 541-41-3(Hazardous Substances Data)
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:
P320 Specific treatment is urgent (see … on this label).
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Ethyl chloroformate price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Alfa Aesar L06311 Ethyl chloroformate, 97% 541-41-3 5g $20.2 2017-11-08 Buy
Alfa Aesar L06311 Ethyl chloroformate, 97% 541-41-3 100g $30.1 2017-11-08 Buy
Alfa Aesar L06311 Ethyl chloroformate, 97% 541-41-3 500g $94.3 2017-11-08 Buy

Ethyl chloroformate Chemical Properties,Uses,Production

Chemical Properties

Colorless to yellow liquid


Cathyl Chloride is used in the preparation of new inhibitors for β-homocysteine S-methyltransferase. Also used in the synthesis of a hexosaminidase inhibitor.

General Description

A colorless liquid with a pungent odor. Flash point 66°F. Very toxic by inhalation. Corrosive to metals and tissue. Vapors are heavier than air. Prolonged exposure to low concentrations or short exposure to high concentrations may have adverse health effects from inhalation.

Air & Water Reactions

Highly flammable. Emits fumes containing HCl on contact with moist air. Decomposes exothermically but slowly in water.

Reactivity Profile

Ethyl chloroformate decomposes slowly in water to form ethanol, HCl, and CO2 Attacks many metals especially in humid atmosphere [Handling Chemicals Safely 1980. p. 476]. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

Health Hazard

Inhalation causes mucous membrane irritation, coughing, and sneezing. Vapor causes severe lachrymation; liquid causes acid-type burns of eyes and skin, like those of hydrochloric acid. Ingestion causes severe burns of mouth and stomach.

Fire Hazard

Special Hazards of Combustion Products: Toxic chlorine and phosgene gases may be formed in fires.

Ethyl chloroformate Preparation Products And Raw materials

Raw materials

Preparation Products

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