Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

Build a label

Substance profile

Isobutyryl chloride

Isobutyryl chloride appears as a colorless liquid.

CAS 79-30-1 C4H7ClO 106.55 g/mol Danger

01 · Identification

What Isobutyryl chloride is

Isobutyryl chloride appears as a colorless liquid. Its molecular formula is C4H7ClO and its molecular weight is 106.55 g/mol.

Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.

CAS number79-30-1
EC number201-194-1
Index number607-140-00-7
Molecular formulaC4H7ClO
Molecular weight106.55 g/mol
Chemical class Flammable agents - 3rd degree

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordDanger
Hazard statements assigned to Isobutyryl chloride
CodeHazard statement
H225 Highly flammable liquid and vapour.
H314 Causes severe skin burns and eye damage.

Precautionary statements: P210, P233, P241, P242, P260, P280, P301, P310, P331, P403

03 · Handling and storage

Storing and handling Isobutyryl chloride

Reactivity

ISOBUTYRYL CHLORIDE is water reactive. Incompatible with strong oxidizing agents, alcohols, bases (including amines). 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].

Source: CAMEO Chemicals

Planning storage for a mix of chemicals? Check Isobutyryl chloride in the storage compatibility matrix →

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.