Isopropyl Methylphosphonic Acid
Isopropyl methylphosphonic acid features phosphorus bonded to one methyl and one isopropyl group, precisely matching HTS 2930.90.9225's structural requirement. Used as a metabolite marker in pesticide and chemical weapons monitoring. The limited carbon attachment ensures chapter 29 classification.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If heterocyclic derivatives or ring-containing analogs
Chapter notes exclude epoxides/cyclic compounds from 2930-2934; shifts to heterocyclic heading 2933.
If when imported as pesticide intermediate formulation
Pesticide preparations containing these compounds classify by use in Chapter 38, not chemical identity.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide GC-MS data verifying isopropyl P-C bond; essential for distinguishing from general phosphonates
• Include origin certificates; synthesis route affects dual-use controls under export regulations
• Avoid bulk packaging over 25kg; triggers hazardous material surcharges and additional inspections
Related Products under HTS 2930.90.92.25
Dimethyl Methylphosphonate (DMMP)
Dimethyl methylphosphonate is an organophosphorus compound with the formula CH3P(O)(OCH3)2, containing a phosphorus atom bonded to one methyl group and two methoxy groups with no other carbon atoms directly attached to phosphorus. It falls under HTS 2930.90.9225 as it precisely matches the chemical structure specified for phosphorus compounds with one methyl group. Commonly used as a flame retardant and chemical intermediate.
Ethyl Methylphosphonic Acid (EMPA)
Ethyl methylphosphonic acid (CH3P(O)(OH)(OC2H5)) is a hydrolysis product of nerve agents, featuring phosphorus bonded to one methyl group and one ethyl group with no additional carbon atoms. Classified under HTS 2930.90.9225 due to its specific phosphorus substitution pattern matching the heading description. Used in chemical analysis and degradation studies.
Methylphosphonic Dichloride
Methylphosphonic dichloride (CH3P(O)Cl2) contains phosphorus bonded solely to one methyl group and two chlorine atoms, fitting HTS 2930.90.9225's criteria for phosphorus compounds with specified alkyl groups. This reactive intermediate is used in organophosphorus synthesis. No other carbon atoms are present in the core structure.
n-Propyl Methylphosphonate
This compound has phosphorus attached to one methyl group and one n-propyl group, fitting HTS 2930.90.9225's narrow definition. Serves as a specialty solvent and reaction intermediate in pharmaceutical synthesis. Structure confirmed by P-NMR spectroscopy.