Safety Reference
Danger
Sourcing O-Phthalaldehyde?
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Sourcing O-Phthalaldehyde?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
o-This compound (OPA) is a chemical compound that appears as a pale yellow solid. It is commonly used as a reagent in the analysis of amino acids and as a building block for synthesizing heterocyclic 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 O-Phthalaldehyde (CAS 643-79-8) is 2912.29.
2912.29
2912 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
phthalaldehyde
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C1=CC=C(C(=C1)C=O)C=O