IMPCH (O-Isopropyl Methylphosphonochloridate) Technical Grade

Technical grade IMPCH (CAS 14484-64-1), a phosphonyl chloride intermediate for GB nerve agent synthesis and pesticide production. HTS 2931.59.0020 specifically names this compound as a halogenated organo-phosphorus derivative with direct carbon-phosphorus bonding. Distilled under vacuum, stabilized with hexyltriphenylphosphonium bromide.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+10.0%13.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2931.90.60.00Higher: 41.5% vs 13.7%

If contains >5% stereoisomers or diastereomers

Mixtures of geometric isomers classified as 'other' rather than specific compound

2809.20.00Higher: 35% vs 13.7%

If for bulk phosphoric acid chlorides without organic substitution

Inorganic phosphorus oxyhalides lack P-C bond, classified in Chapter 28

2919.90Same rate: 13.7%

If hydrolyzed to phosphonic acid before import

Phosphonic acids classified by carboxylic acid function in heading 2919

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Import Tips & Compliance

Schedule 2B(12) under Chemical Weapons Convention; requires End-Use Certificate and BIS license

Verify no prohibited downstream use; declare all synthesis pathways in import documentation

Store below 5°C; provide thermal stability data to prevent decomposition during transit