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LC3777 Isobutyl chloroformate

for synthesis


Order number Packaging Quantity Price €
AC30777 Glass bottle 100 ml 24.75
AC30777 Glass bottle 250 ml 55.35


Product information
Synonyms Chloroformic acid isobutyl ester
Hill Formula C5H9ClO2
Chemicalformula ClCOOCH2CH(CH3)2
HS Code 2915 90 00
EC number 208-840-1
Molar mass 136.58 g/mol
CAS number 543-27-1


Chemical and physical data
Solubility (20 °C) (decomposition)
Molar mass 136.58 g/mol
Density 1.05 g/cm3 (20 °C)
Boiling point 127 – 129 °C (1013 hPa)
Flash point 30 °C
Refractive index 1.407 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
H302: Harmful if swallowed.
H331: Toxic if inhaled.
H314: Causes severe skin burns and eye damage.
Precautionary Statement(s) P260: Do not breathe vapour.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
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. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

Storage class 3 Flammable Liquids
WGK WGK 2 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.


Safety information
R Phrase R 10-22-23-34
Flammable.Harmful if swallowed.Toxic by inhalation.Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.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


Transport information
Declaration (transport by sea) IMDG-Code UN 2742 CHLOROFORMATES, TOXIC, CORROSIVE, FLAMMABLE, N.O.S.(ISOBUTYL CHLOROFORMATE), 6.1 (3, 8), II, Segregation Group: 1 (Acids)


Toxicological data
LD 50 oral LD50 rat 1400 mg/kg


Assay (GC, area%) ≥ 95 %
Density (d 20 °C/ 4 °C) 1.043 – 1.046
Identity (IR) passes test


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