C5H9ClO2
136.58 g/mol
Pharmaceutical IntermediateDanger
Isobutyl chloroformate
CAS543-27-1EC208-840-1
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate
Isobutyl chloroformate is a colorless to light-colored liquid that is insoluble in water and denser than water. It is highly corrosive to skin, eyes, and mucous membranes, and is very toxic by ingestion, inhalation, and skin absorption.
Peptide reagentChemical intermediate in pharmaceutical manufacturingLaboratory reagent for organic synthesis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing Isobutyl chloroformate?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ReferenceSame Category
Sodium 4-chloro-1-hydroxybutanesulfonate
CAS54322-20-2
pharmaceutical intermediate
ReferenceSame Category
N-Acetyl-L-thioproline
CAS54323-50-1
pharmaceutical intermediate
ReferenceSame Category
4-Aminophthalic acid
CAS5434-21-9
pharmaceutical intermediate
ReferenceSame Category
4-Hydroxy-3-nitropyridine
CAS5435-54-1
pharmaceutical intermediate
Safety Reference
Danger
H226Flammable liquid and vapour
H290May be corrosive to metals
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H331Toxic if inhaled
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Isobutyl chloroformate (CAS 543-27-1) is 2915.90.
HS code (international, 6-digit)
2915.90
EU CN code (8-digit)
2915 90 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-methylpropyl carbonochloridate
InChIKey
YOETUEMZNOLGDB-UHFFFAOYSA-N
SMILES
CC(C)COC(=O)Cl
Synonyms (29)
- IBCF
- 2-Methylpropyl chloroformate
- ClCO2iBu
- ClCOOi-Bu
- Isobutyl chloridocarbonate
- Isobutyl chlorocarbonate
- Isobutyl chloroformate
- Octreotide Impurity 67
- i-Butyl chloroformate
- iBuOCOCl
- isobutlychloroformate
- isobutyichioroformate
- isobutyl carbonochloridate
- isobutyl chioroformate
- isobutyl chloroformat
- isobutylchlorformate
- isobutylchoroformate
- isobutyloxycarbonyl chloride
Sourcing Isobutyl chloroformate?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.