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O-Isopropyl Methylphosphonochloridate (98% Pure)

High-purity (98%) O-isopropyl methylphosphonochloridate, a colorless to pale yellow liquid used in fine chemical synthesis. Classified specifically under HTS 2931.59.0020 due to its defined chemical structure as a halogenated organo-phosphorus compound with P-CH3 and P-Cl bonds. Supplied in stabilized glass-lined containers for safe transport.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
๐Ÿ‡จ๐Ÿ‡ณChina3.7%+12.5%16.2%
๐Ÿ‡ฒ๐Ÿ‡ฝMexico3.7%+10.0%13.7%
๐Ÿ‡จ๐Ÿ‡ฆCanada3.7%+10.0%13.7%
๐Ÿ‡ฉ๐Ÿ‡ชGermanyFree+10.0%10%
๐Ÿ‡ฏ๐Ÿ‡ตJapanFree+12.5%12.5%

Alternative Classifications

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

2931.59.00Same rate: 16.2%

If ethyl homolog (O-ethyl methylphosphonochloridate)

Different alkyl chain length changes specific compound identification within same subheading group

2909.19.18.00Higher: 137.5% vs 16.2%

If classified by chloride function without considering P-C bond

Erroneous classification as simple alkyl chloride ignores organo-phosphorus Chapter 29 priority

3824.99Higher: 17.5% vs 16.2%

If imported as solution in inert solvent exceeding transport limits

Solutions beyond safety/transport exceptions fall to mixtures in Chapter 38

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code โ€” and can price the duty on it in the same conversation.

Import Tips & Compliance

โ€ข Declare exact purity percentage; 95%+ typically qualifies for specific subheading 2931.59.0020

โ€ข Include NMR/GC certificates verifying structure; critical for Customs chemical identification

โ€ข Label as UN3265 Corrosive Liquid, pH <2; use secondary containment packaging