4-Methyl-1-phenyl-3-pyrazolone from Mexico
This is a pyrazole derivative used as a key intermediate in the synthesis of pyrazolone dyes for color photographic films and papers. Its aromatic pyrazole ring structure qualifies it under HTS 2933.19.30 as a photographic chemical containing an unfused pyrazole ring. The compound reacts with diazonium salts to form azo dyes essential for color development processes.
Duty Rate — Mexico → United States
Rate breakdown
Import Tips
• Provide detailed chemical analysis certificates confirming pyrazole structure and aromatic modification to avoid reclassification under general pyrazole headings
• Include end-use documentation specifying photographic dye applications to justify the 'photographic chemicals' provision
• Ensure proper Hazard Communication labeling (HazMat) as it may be classified as an irritant; common pitfall is insufficient safety data sheets