Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319
Sourcing TRIPHENYLPHOSPHINE OXIDE?
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N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine
Antioxidant and antiozonant for rubber
Sourcing TRIPHENYLPHOSPHINE OXIDE?
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Triphenylphosphine oxide is a colorless crystalline organophosphorus compound commonly encountered as a byproduct in reactions involving triphenylphosphine. It is one of the more prevalent phosphine oxides and is often viewed as a potentially useful waste material in 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.
The international HS code for TRIPHENYLPHOSPHINE OXIDE (CAS 791-28-6) is 2931.49.
2931.49
2931 49 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
diphenylphosphorylbenzene
FIQMHBFVRAXMOP-UHFFFAOYSA-N
C1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)C3=CC=CC=C3