Safety Reference
Danger
Sourcing Hexamethyldisilazane?
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Sourcing Hexamethyldisilazane?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Hexamethyldisilazane (HMDS) is an organosilicon compound derived from ammonia where two hydrogen atoms are replaced by trimethylsilyl groups. It is primarily used as a chemical intermediate in the production of siloxane polymers.
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 Hexamethyldisilazane (CAS 999-97-3) is 2931.90.
2931.90
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
[dimethyl-(trimethylsilylamino)silyl]methane
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C[Si](C)(C)N[Si](C)(C)C