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LC982 Butyl chloroformate

for synthesis


Order number Packaging Quantity Price €
AC27982 Glass bottle 250 ml 11.97


Product information
Synonyms Chloroformic acid butyl ester, Butyl chlorocarboxylate
Hill Formula C5H9ClO2
Chemical formula ClCOO(CH2)3CH3
HS Code 2915 90 00
EC number 209-750-5
Molar mass 136.57 g/mol
EC index number 607-138-00-6
CAS number 592-34-7


Chemical and physical data
Ignition temperature 285 °C DIN 51794
Solubility (20 °C) (decomposition)
Melting point -70 °C
Molar mass 136.57 g/mol
Density 1.06 g/cm3 (20 °C)
Boiling point 138.0 – 144.5 °C
Vapor pressure 7.18 hPa (20 °C)
Flash point 30 °C
Refractive index 1.4114 (20 °C, 589 nm)


Safety information
R Phrase R 10-23-34
Flammable.Toxic by inhalation.Causes burns.
S Phrase S 26-36-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger flammable, toxic, corrosive
Hazard Symbol Toxic
Storage class 3 Flammable Liquids
WGK WGK 1 slightly water endangering
Disposal 11
Organic acid halides, anhydrides and isocyanates can be added dropwise to an excess of methanol (Cat. No. 822283) to convert them into the corresponding methyl esters or methyl carbamates. If necessary, neutralize with sodium hydroxide solution (Cat. No. 105587). Fill into container A.


Transport information
Declaration (transport by sea) IMDG-Code UN 2743 BUTYL CHLOROFORMATE, 6.1 (8, 3), II, Segregation Group: 1 (Acids)
Declaration (transport by air) IATA-DGR UN 2743 N-BUTYL CHLOROFORMATE, 6.1 (3, 8),


Toxicological data
LD 50 oral LD50 rat 1325 mg/kg


Assay (GC, area%) ∼95%
Density (d 20 °C/ 4 °C) 1.055 – 1.057
Identity (IR) passes test


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