Phosphonate Plastic Additive 141
Phosphonate Plastic Additive 141, identified as bis(1-methylpentyl) methylphosphonate, enhances PVC plastisol flexibility and acts as a secondary plasticizer, classified precisely under HTS 2931.49.00.25. The direct phosphorus-carbon linkage defines its organo-inorganic status.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parent polycarboxylic acid used in esterification precursor
Acid-function compounds precede ester derivatives in chapter numerical order per note rules.
If among dialkyl alkylphosphonates statistical breakout
More specific statistical suffixes apply to phosphonate sub-types within the same heading.
If when supplied as 50%+ active lubricant concentrate
Lubricating preparations with >70% petroleum oils shift from pure chemicals to chapter 34.
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Import Tips & Compliance
• Use NMR or GC-MS analysis certificates to prove molecular structure matching HTS description
• Segregate from halogenated phosphonates in shipping to prevent cross-contamination and classification errors
• Calculate duties based on pure weight; additive carriers increase mixture classification risk
Related Products under HTS 2931.49.00.25
Bis(1-methylpentyl) Methylphosphonate
Bis(1-methylpentyl) methylphosphonate is a non-halogenated organo-phosphorus compound featuring phosphorus directly linked to carbon atoms, classified under HTS 2931.49.00.25 as a specific organo-inorganic derivative. It serves as a chemical intermediate in synthesis and has applications in flame retardants and plasticizers.
Santicizer 141 Plasticizer
Santicizer 141, chemically bis(1-methylpentyl) methylphosphonate, functions as a phosphate ester plasticizer for PVC and other polymers, classified under HTS 2931.49.00.25 due to its organo-phosphorus structure with P-C bonds. It provides flexibility and flame retardancy in flexible films and coatings.
Flame Retardant P-141
Flame Retardant P-141 is bis(1-methylpentyl) methylphosphonate used in polyurethane foams and textiles for fire safety, falling under HTS 2931.49.00.25 as a non-halogenated organo-phosphorus compound. Its P-C bonded structure qualifies it as an organo-inorganic derivative per chapter notes.