Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H311
Sourcing Isobutyric anhydride?
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Furfuryl mercaptan
flavor and fragrance ingredient
Sourcing Isobutyric anhydride?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Isobutyric anhydride is a colorless liquid that burns skin and eyes, with vapors heavier than air. It is used as a chemical intermediate and flavor/aroma enhancer.
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.
The international HS code for Isobutyric anhydride (CAS 97-72-3) is 2915.90.
2915.90
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.
2-methylpropanoyl 2-methylpropanoate
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