Diisobutyl Phthalate (DIBP) from Japan
DIBP functions as a fast-fusing plasticizer for PVC coatings and inks, derived from orthophthalic acid. Classified in HTS 2917.34.0150 as other orthophthalic esters under Chapter 29 for pure organic compounds. Alternative to DBP in some applications.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Confirm branched isobutyl structure via NMR to distinguish from n-butyl DBP
• Prop 65 labeling required in California for phthalate exposure
• Avoid packaging that implies consumer use; industrial bulk keeps Chapter 29