Benzothiazyl Disulfide (MBTS) from Japan
MBTS serves as a retarder, secondary accelerator, and sulfur donor in rubber vulcanization systems. This organo-sulfur disulfide's predominant rubber processing role qualifies it for HTS 2930.90.92.31 classification.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6211.3%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
• CAS 120-78-5 must appear on all documentation
• Distinguish from pure disulfides used in pharma (2930.90.91)
• Thermal stability data recommended for customs verification