Safety Reference
Danger
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319
Controlled substances
Substances on this list are tightly controlled under chemical-weapons or precursor regulations. ChemAbout does not facilitate their procurement; this page is a compliance reference only.
CAS 762-04-9
Micronutrient for fertilizer and corrosion inhibitor
Diethyl phosphonate is an organophosphorus compound used as an intermediate in the production of flame-retardants and insecticides. It is a colorless liquid valued for the high reactivity of its P-H bond in chemical 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 Diethyl phosphonate (CAS 762-04-9) is 2920.22.
2920.22
2920 22 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
diethoxy(oxo)phosphanium
LXCYSACZTOKNNS-UHFFFAOYSA-N
CCO[P+](=O)OCC