Other: — Other: — Products described in additional U.S. note 3 to section VI
N347708 · 2025-05-05 — The tariff classification of 3,3,4,4-Biphenyltetracarboxylic dianhydride, CAS No. 2420-87-3, imported in bulk form, from China
The subject product, 3,3,4,4-Biphenyltetracarboxylic dianhydride is also known as s-BPDA and has the molecular formula C16H6O6. You provided the below information. Chemical Name: 3,3,4,4-Biphenyltetracarboxylic dianhydride Common Name: S-BPDA CAS Number: 2420-87-3 Purity: 99.9 Form: Solid (crystalline powder) Intended Use: Monomer for polyimide production The applicable subheading for the 3,3,4,4-Biphenyltetracarboxylic dianhydride will be 2917.39.3000, Harmonized Tariff Schedule of the United States (HTSUS), which provides for “Polycarboxylic acids, their anhydrides, halides, peroxides and…
N250448 · 2014-03-18 — The tariff classification of 4-(Phenylethynyl)phthalic anhydride, CAS 119389-05-8, from China
4-(Phenylethynyl)phthalic anhydride, CAS 119389-05-8, also known as 5-(Phenylethynyl)-2-benzofuran-1,3-dione, is a polycarboxylic acid. The applicable subheading for the 4-(Phenylethynyl)phthalic anhydride will be 2917.39.3000, Harmonized Tariff Schedule of the United States (HTSUS), which provides for Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other: Other: Other: Products described in…
N163319 · 2011-05-22 — The tariff classification of 2-Carboxymethyl-4-nitro benzoic acid, CAS 39585-32-5, from Japan, China, or India.
Your inquiry was submitted to our laboratory for analysis. Your inquiry pertains to 2-Carboxymethyl-4-nitro benzoic acid. You stated that a CAS number has not been assigned to this compound; however, our laboratory determined that CAS 39585-32-5 is assigned to this compound. 2-Carboxymethyl-4-nitro benzoic acid, also known as Benzeneacetic acid, 2-carboxy-5-nitro, is an aromatic polycarboxylic acid used as a pharmaceutical intermediate. The applicable subheading for 2-Carboxymethyl-4-nitro benzoic acid will be 2917.39.3000, Harmonized Tariff Schedule of the United States (HTSUS), which…
N076275 · 2009-10-09 — The tariff classification of Tribasic lead sulfate, CAS No. 12202-17-4, Dibasic lead phosphite, CAS No. 1334-40-7, and Dibasic lead phthalate, CAS No. 57142-78-6, from Korea
Tribasic lead sulfate and Dibasic lead phosphate are inorganic compounds indicated for use as heat stabilizers in the preparation of PVC compounds. Dibasic lead phthalate is an aromatic polycarboxylic acid also used as a heat stabilizer in the preparation of PVC compounds. The applicable subheading for Tribasic lead sulfate will be 2833.29.5100, Harmonized Tariff Schedule of the United States (HTSUS), which provides for Sulfates; alums; peroxosulfates (persulfates): Other sulfates: Other: Other. The rate of duty will be 3.7 percent ad valorem. The applicable subheading for Dibasic lead…
L88474 · 2005-12-30 — The tariff classification of 3,6-Difluorophthalic anhydride, CAS # 652-40-4, imported in bulk form, from England
The subject product, 3,6-Difluorophthalic anhydride, is a halogenated derivative of an aromatic polycarboxylic acid indicated for use as a pharmaceutical intermediate. The applicable subheading for 3,6-Difluorophthalic anhydride, also known as 1,3-Isobenzofurandione, 4,7-difluoro-, will be 2917.39.3000, Harmonized Tariff Schedule of the United States (HTS), which provides for Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other: Other: Other: Products described in additional U.S. note 3 to section VI. The rate of duty will be 6.5…
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