2933.19.30.10/4-Amino-3-methyl-1-phenylpyrazol-5-one Coupler/Japan

4-Amino-3-methyl-1-phenylpyrazol-5-one Coupler from Japan

A specific aromatic pyrazolone coupler (CAS 104-26-7 variant) designed for magenta dye formation in color negative photographic paper emulsions. Classified under HTS 2933.19.30.10 due to its unfused pyrazole ring structure and exclusive application in photographic color paper processing. It couples with color developer to produce stable dye images upon silver halide development.

Duty Rate — Japan → United States

16.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Calculate with your customs valueVerify classification with AI

Import Tips

• Provide CAS number and spectral analysis confirming pyrazole identity and aromatic substitution to customs for verification

• Declare exact end-use as 'coupler for color negative photographic paper' on entry documents to prevent misclassification

• Watch for contamination thresholds; impurities exceeding chapter note limits may reclassify to mixtures under Chapter 38

4-Amino-3-methyl-1-phenylpyrazol-5-one Coupler from Japan — Import Duty Rate | HTS 2933.19.30.10