Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Sourcing 4H-Chromen-4-one?
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Sourcing 4H-Chromen-4-one?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
4H-This compound, also known as chromone, is the simplest member of the chromone class, consisting of a 4H-chromene core with an oxo group at position 4. It serves as a pharmaceutical intermediate in the manufacturing of various compounds.
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 4H-Chromen-4-one (CAS 491-38-3) is 2932.99.
2932.99
2932 99 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
chromen-4-one
OTAFHZMPRISVEM-UHFFFAOYSA-N
C1=CC=C2C(=C1)C(=O)C=CO2