CBP Ruling Database

Search past U.S. Customs and Border Protection classification rulings. Find precedent for your product and cite it in your own classification.

328 rulings found

The tariff classification of Hexadecymercaptan (CAS 2917-26-2) from England.

L84415 2930909090

The tariff classification of Hexadecymercaptan (CAS 2917-26-2) from England.

The tariff classification of Phenyl Chlorothioformate (CAS 1005-56-7) from Poland.

L86574 2930902900

The tariff classification of Phenyl Chlorothioformate (CAS 1005-56-7) from Poland.

The tariff classification of 4-Bromothioanisole (CAS 104-95-0) from Japan.

L87731 2930902900

The tariff classification of 4-Bromothioanisole (CAS 104-95-0) from Japan.

The tariff classification of (+/-)-Trans-1,2-Bis(2-Mercaptoacetamido) Cyclohexane (CAS 257641-01-3) from England.

L87728 2930909090

The tariff classification of (+/-)-Trans-1,2-Bis(2-Mercaptoacetamido) Cyclohexane (CAS 257641-01-3) from England.

The tariff classification of Eicosanethiol (CAS 13373-97-2) from England.

L86723 2930909090

The tariff classification of Eicosanethiol (CAS 13373-97-2) from England.

The tariff classification of N-Acetyl-L-Cysteine (CAS 616-91-1) from Italy.

L89731 2930904920

The tariff classification of N-Acetyl-L-Cysteine (CAS 616-91-1) from Italy.

The tariff classification of S-(2-(Dimethylamino)ethyl)isothiouronium, dihydrochloride (CAS16111-27-6), imported in bulk form, from China

R02847 2930909090

The tariff classification of S-(2-(Dimethylamino)ethyl)isothiouronium, dihydrochloride (CAS16111-27-6), imported in bulk form, from China

The tariff classification of Bisphenol S (CAS 80-09-1), imported in bulk form, from China

M80349 2930902900

The tariff classification of Bisphenol S (CAS 80-09-1), imported in bulk form, from China

The tariff classification of Bicalutamide (CAS-90357-06-5) and Nabumetone (CAS-42924-53-8), imported in bulk form, from Spain and Italy, respectively

M81232 2930902900

The tariff classification of Bicalutamide (CAS-90357-06-5) and Nabumetone (CAS-42924-53-8), imported in bulk form, from Spain and Italy, respectively

The tariff classification of N-Benzoylisothiocyanate (CAS 532-55-8), imported in bulk form, from China

M80874 2930902900

The tariff classification of N-Benzoylisothiocyanate (CAS 532-55-8), imported in bulk form, from China

The tariff classification of N-CBZ-L-Methionine methyl ester (CAS 56762-93-7), imported in bulk form, from China

M81755 2930902900

The tariff classification of N-CBZ-L-Methionine methyl ester (CAS 56762-93-7), imported in bulk form, from China

The tariff classification of 2-(Methylsulfonyl)-Ethyl Chloroformate (CAS 53298-29-6), imported in bulk form, from France

M80875 2930909090

The tariff classification of 2-(Methylsulfonyl)-Ethyl Chloroformate (CAS 53298-29-6), imported in bulk form, from France

The tariff classification of Acetylcysteine USP (CAS 616-91-1), imported in bulk form, from Switzerland

M83650 2930904920

The tariff classification of Acetylcysteine USP (CAS 616-91-1), imported in bulk form, from Switzerland

The tariff classification of Potassium Thioglycolate 44% aqueous solution (CAS 34452-51-2), imported in bulk form, from England

M83494 2930909090

The tariff classification of Potassium Thioglycolate 44% aqueous solution (CAS 34452-51-2), imported in bulk form, from England

The tariff classification of 4-Tert-Butylbenzenethiol (CAS 2396-68-1) from the United Kingdom.

M85962 2930902900

The tariff classification of 4-Tert-Butylbenzenethiol (CAS 2396-68-1) from the United Kingdom.

The tariff classification of P-Toluenesulfonylmethyl Isocyanide (CAS 36635-61-7) from China

N003412 2930909090

The tariff classification of P-Toluenesulfonylmethyl Isocyanide (CAS 36635-61-7) from China

The tariff classification of 3-Mercaptobenzoic Acid (CAS 4869-59-4) from England

N003833 2930902900

The tariff classification of 3-Mercaptobenzoic Acid (CAS 4869-59-4) from England

The tariff classification of Thiopivalic acid (CAS 55561-02-9), imported in bulk form, from China

N004038 2930904950

The tariff classification of Thiopivalic acid (CAS 55561-02-9), imported in bulk form, from China

The tariff classification of (S)-(-)-2-Methyl-2-Propanesulfinamide (CAS 343338-28-3) from China

N005887 2930909190

The tariff classification of (S)-(-)-2-Methyl-2-Propanesulfinamide (CAS 343338-28-3) from China

The tariff classification of Boc-L-Methionine (CAS 2488-15-5), imported in bulk form, from Italy

N008079 2930909190

The tariff classification of Boc-L-Methionine (CAS 2488-15-5), imported in bulk form, from Italy

The tariff classification of N,N,N',N'-Tetramethylcystamine dihydrochloride (CAS 17339-60-5), imported in bulk form, from England

N008077 2930909190

The tariff classification of N,N,N',N'-Tetramethylcystamine dihydrochloride (CAS 17339-60-5), imported in bulk form, from England

The tariff classification of PUMA® 6030 (CAS 106264-79-3) from China

N012223 2930902900

The tariff classification of PUMA® 6030 (CAS 106264-79-3) from China

The tariff classification of 3-Mercaptobenzoic Acid (CAS 4869-59-4) from England

N014102 2930902900

The tariff classification of 3-Mercaptobenzoic Acid (CAS 4869-59-4) from England

The tariff classification of Cyclopropylphenylsulfide (CAS 14633-54-6), imported in bulk form, from England

N014104 2930902900

The tariff classification of Cyclopropylphenylsulfide (CAS 14633-54-6), imported in bulk form, from England

Protest AFR No. 3195-04-100142; Polypeptides; 9817.85.01 Prototype Treatment; Additional U.S. Rule of Interpretation 1(b); Actual Use; 19 CFR 10.134; Classification

W563169 29309049

Protest AFR No. 3195-04-100142; Polypeptides; 9817.85.01 Prototype Treatment; Additional U.S. Rule of Interpretation 1(b); Actual Use; 19 CFR 10.134; Classification