Chapter 29: Organic chemicals

2921.49.15.00

m-Nitro-p-toluidine

2921.49.32.00

Fast color bases

2921.49.38.00

Antidepressants, tranquilizers and other psychotherapeutic agents

2921.49.45.00

Products described in additional U.S. note 3 to section VI

2921.51.10.00

4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate

2921.51.20.00

Photographic chemicals

2921.51.30.00

Products described in additional U.S. note 3 to section VI

2921.59.04.00

1,8-Diaminonaphthalene (1,8-Naphthalenediamine)

2921.59.08.00

5-Amino-2-(p-aminoanilino) benzenesulfonic acid; 4,4'-Diamino-3-biphenylsulfonic acid (3-Benzidinesulfonic acid); 3,3'-Dimethylbenzidine (o-Tolidine); 3,3'-Dimethylbenzidine hydrochloride; Ethyl-(2-dimethylaminoethyl) aniline;N-Ethyl-N,N'-dimethyl-N'-phenylethylene- diamine; and 4,4'-Methylenebis(2-chloroaniline)

2921.59.17.00

4,4'-Benzidine-2,2'-disulfonic acid; 1,4-Diaminobenzene-2-sulfonic acid; 4,4'-Methylene bis ((3-chloro-2,6-diethylaniline); 4,4'-Methylene bis(2,6-diethylaniline); 4,4'-Methylene bis (2,6-diisopropylaniline);m-Xylene diamine; and 3,3'-Diaminobenzidine (tetraaminobiphenyl)

2921.59.20.00

4,4'-Diamino-2,2'-stilbenedisulfonic acid

2921.59.30.00

4,4'-Methylenedianiline

2921.59.40.00

Products described in additional U.S. note 3 to section VI

2922.11.00.00

Monoethanolamine and its salts

2922.12.00.01

Diethanolamine and its salts

2922.14.00.00

Dextropropoxyphene (INN) and its salts

2922.15.00.00

Triethanolamine

2922.16.00.00

Diethylammonium perfluorooctane sulfonate

2922.17.00.00

Methyldiethanolamine and ethyldiethanolamine

2922.18.00.00

2-(N,N-Diisopropylamino)ethanol

2922.19.20.00

4,4'-Bis(dimethylamino) benzhydrol (Michler's hydrol); 5'-[3'-(Dimethylamino) propyl]-10',11'- dihydro-5H'-dibenzo [a,b] cyclohept- en-5'-ol (Dibenzcarbinol); and 1-(p-Nitrophenyl)-2-amino-1,3- propanediol

2922.19.33.00

N1-(2-Hydroxyethyl)-2-nitro-1,4- phenylenediamine;N1,N4,N4- Tris(2-hydroxyethyl)-2- nitro-1,4- phenylenediamine;N1,N4-Dimethyl-N1- (2-hydroxyethyl)-3-nitro-1,4- phenylene- diamine;N1,N4-Dimethyl-N1-(2,3-dihydroxy- propyl)-3-nitro-1,4- phenylenediamine; andN1-(2-Hydroxyethyl)-3-nitro-1,4- phenylenediamine

2922.19.60.00

Products described in additional U.S. note 3 to section VI

2922.19.90.00

Salts of triethanolamine

2922.21.10.00

1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid; 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid (Chicago acid); 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid, potassium salt; 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid, sodium salt; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, monosodium salt (H acid, monosodium salt); 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, potassium salt (H acid, monopotassium salt); 4-Amino-3-hydroxy-1-naphthalenesulfonic acid; 6-Amino-1-naphthol-3-sulfonic acid and its salts; and 8-Amino-1-naphthol-5-sulfonic acid and its salts

2922.21.25.00

1-Amino-8-hydroxy-4,6-naphthalenedisulfonic acid, monosodium salt

2922.21.40.00

Products described in additional U.S. note 3 to section VI

2922.29.03.00

o-Anisidine;p-Anisidine; andp-Phenetidine

2922.29.06.00

Fast color bases

2922.29.10.00

2-Amino-6-chloro-4-nitrophenol; 2-Amino-4-chlorophenol; 2-Amino-4-chlorophenol hydrochloride; 2-Amino-p-cresol; 4-Amino-o-cresol; 6-Amino-2,4-dichloro-3-methylphenol; 2-(3-Amino-4-hydroxyphenylsulfonyl)ethanol; 2-Amino-4-nitrophenol; 2-Amino-4-nitrophenol, sodium salt; 2-Amino-5-nitrophenol;m-Aminophenol; 2-(4'-Aminophenoxy)ethylsulfate; 5-Chloro-2-(2',4'-dichlorophenoxy)aniline; 3,4-Dimethoxyphenethylamine (Homoveratrylamine); 2-Hydroxy-5-nitrometanilic acid; 4-Methoxymetanilic acid; 6-Methoxymetanilic acid; 4-Methoxy-m-phenylenediamine; 5-Methoxy-m-phenylenediamine sulfate; 6-(Methylamino)-1-naphthol-3-sulfonic acid; 7-(Methylamino)-1-naphthol-3-sulfonic acid; and 2-Methyl-p-anisidine

2922.29.13.00

o-Aminophenol; and 2,2-Bis[4-(4-aminophenoxy)phenyl]propane

2922.29.15.00

m-Diethylaminophenol;m-Dimethylaminophenol; 3-Ethylamino-p-cresol; and 5-Methoxy-m-phenylenediamine

2922.29.20.00

4-Chloro-2,5-dimethoxyaniline; and 2,4-Dimethoxyaniline

2922.29.26.00

Fast color bases

2922.29.29.00

Photographic chemicals

2922.29.61.00

Products described in additional U.S. note 3 to section VI

2922.31.00.00

Amfepramone (INN), methadone (INN) and normethadone (INN); salts thereof

2922.39.05.00

1-Amino-2,4-dibromoanthraquinone; and 2-Amino-5-chlorobenzophenone

2922.39.10.00

2'-Amino aceto phenone; 3'-Amino aceto phenone; 1-Amino-4-bromo-2-methyl anthra quinone; 1,4-Bis [1-anthra quinonyl amino] anthra- quinone; 1,4-Di mesi dino anthra quinone; 4-Dimethyl amino benzaldehyde; and Imino di anthra quinone

2922.39.14.00

2-Aminoanthraquinone

2922.39.17.00

1-Aminoanthraquinone

2922.39.25.00

Products described in additional U.S. note 3 to section VI

Base rate: 3.7%Source retrieved: 2026-05-11

2922.41.00

Lysine and its esters; salts thereof

2922.42.10.00

Monosodium glutamate

2922.43.10.00

Products described in additional U.S. note 3 to section VI

2922.44.00.00

Tilidine (INN) and its salts

2922.49.05.00

(R)-α-Aminobenzeneacetic acid; 2-Amino-3-chlorobenzoic acid, methyl ester

2922.49.10.00

m-Aminobenzoic acid, technical;p-Aminobenzoic acid; 3,5-Diaminobenzoic acid; 2-Ethylamino-5-sulfobenzoic acid; 3-(N-Ethylanilino)propionic acid, methyl ester;β-(β-Methoxyethoxyethyl)-4-aminobenzoate; Methyl anthranilate; andl-Phenylalanine

2922.49.30.00

Products described in additional U.S. note 3 to section VI

Base rate: 4.2%Source retrieved: 2026-05-11

2922.49.43.00

Glycine (Aminoacetic acid)

2922.49.49

Other amino acids

Base rate: 4.2%Source retrieved: 2026-05-11

2922.49.60.00

3-Aminocrotonic acid, methyl ester; and (R)-α-Amino-1,4-cyclohexadiene-1- acetic acid

2922.50.07.00

3,4-Diaminophenetole dihydrogen sulfate; 2-Nitro-5-[(2,3-dihydroxy) propoxy]-N- methyl aniline; 2-Nitro-5-(2-hydroxy ethoxy)-N-methyl aniline; 4-(2-Hydroethoxy)-1,3-phenylene diamine dihydro chloride; 3-Methoxy-4-[(2-hydroxy ethyl) amino] nitro- benzene; 4-[(2-Hydroxy ethyl) amino]-3-nitro phenol; and (R)-α-Amino-4-hydroxy benzene acetic acid (d(-)-p-Hydroxy phenyl glycine)

2922.50.10.00

dl-3-(3,4-Di hydroxy phenyl) alanine;N-Ethyl-N-(2-methoxy carbonyl ethyl) aniline;dl-Phenyl ephrine base; and Carbonic acid, methyl ester, diester with 2,2'-(m-tolyl amino) diethanol (Toluidine carbonate)

2922.50.11.00

Salts of d(-)-p-Hydroxyphenylglycine ((R)- α-Amino-4-hydroxybenzeneacetic acid)

2922.50.13.00

Isoetharine hydrochloride; Isoxsuprine hydrochloride; Nylidrin hydrochloride; Phenylephrine hydrochloride; Salbutamol (Albuterol); and Terbutaline sulfate

2922.50.14.00

Cardiovascular drugs

2922.50.17.00

Dermatological agents and local anesthetics

2922.50.19.00

Guaiacol derivatives

2922.50.35.00

Products described in additional U.S. note 3 to section VI

Base rate: 3.7%Source retrieved: 2026-05-11

2923.10.00.00

Choline and its salts

2923.20.10.00

Purified egg phospholipids, pharmaceutical grade meeting requirements of the U.S. Food and Drug Administration, for use in intravenous fat emulsion

Base rate: 6.2%Source retrieved: 2026-05-11

2923.30.00.00

Tetraethylammonium perfluorooctane sulfonate

2923.40.00.00

Didecylmethylammonium perfluorooctane sulfonate

Base rate: 6.2%Source retrieved: 2026-05-11

2924.11.00.00

Meprobamate (INN)

Base rate: 3.7%Source retrieved: 2026-05-11

2924.12.00.00

Fluoroacetamide (ISO), monocrotophos (ISO) and phosphamidon (ISO)

2924.21.04.00

3-(p-Chlorophenyl)-1,1-dimethylurea (Monuron)

2924.21.08.00

1,1-Dimethyl-3-(α,α,α-trifluoro-m- tolyl)urea (Fluometuron)

2924.21.12.00

1-(2-Methylcyclohexyl)-3-phenylurea

2924.21.18.00

sym-Diethyldiphenylurea

2924.21.20.00

Products described in additional U.S. note 3 to section VI

2924.23.10.00

2-Acetamidobenzoic acid

2924.23.70.00

Products described in additional U.S. note 3 to section VI

2924.24.00.00

Ethinamate (INN)

2924.25.00.00

Alachlor (ISO)

2924.29.01.00

p-Acetanisidide;p-Acetoacetotoluidide; 4'-Amino-N-methylacetanilide; 2,5-Dimethoxyacetanilide; andN-(7-Hydroxy-1-naphthyl)acetamide

2924.29.03.00

3,5-Dinitro-o-toluamide

Base rate: 5.3%Source retrieved: 2026-05-11

2924.29.05.00

Biligrafin acid; 3,5-Diacetamido-2,4,6-triiodobenzoic acid; and Metrizoic acid

2924.29.10.00

Acetanilide;N-Acetylsulfanilyl chloride; Aspartame; and 2-Methoxy-5-acetamino-N,N- bis(2-acetoxyethyl)aniline

2924.29.20.00

2-Acetamido-3-chloro anthra quinone;o-Aceto acetanisidide;o-Acetoacetotoluidide; 2',4'-Acetoacetoxylidide; and 1-Amino-5-benzamido anthra quinone

2924.29.23.00

4-Amino acetanilide; 2,2'-Oxamido bis [ethyl-3-(3,5-di-tert-butyl- 4-hydroxyphenyl) propionate]; Aceto acetsulfanilic acid, potassium salt; and N-(2,3-Dihydroxy propyl)-5-N-(2,3-dihydroxy- propyl) acetamido-N'-(2-hydroxyethyl)- 2,4,6-triiodoisophthalamide

2924.29.26.00

3-Aminomethoxybenzanilide

2924.29.28.00

N-[[(4-Chlorophenyl)amino]carbonyl]-2,6- difluorobenzamide; and 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)- benzamide (Pronamide)

2924.29.31.00

4-Acetamido-2-amino phenol;p-Acetamino benz aldehyde; Aceto acet benzyl amide; Aceto acet-5-chloro-2-toluidide;p-Aceto aceto phenetidide;N-Acetyl-2,6-xylidine (N-Acetyl-2,6- dimethyl aniline);p-Amino benzoic acid iso octyl amide;p-Amino benzoyl amino naphthalene sulfonic acid; 2-Amino-4-chloro benzamide; 3-Amino-4-chloro benzamide; 4-Amino hippuric acid;p-Amino phenyl urethane; 1-Benzamido-4-chloro anthra quinone; 1-Benzamido-5-chloro anthra quinone; Benzanilide; 4'-Chloro aceto acetanilide; 3-(N,N-Dihydroxy ethyl amino) benzanilide; 2,5-Dihydroxy-N-(2-hydroxyethyl)- benzamide; Gentisamide;N,N'-Hexa methylene bis(3,5-di-tert-butyl- 4-hydroxy hydrocinnamamide); 2-(m-Hydroxyanilino) acetamide; Nitra acid amide (1-Amino-9,10-dihydro-N- (3-methoxy propyl)-4-nitro-9,10-dioxo-2- anthramide); Phenacetin, technical; andβ-Resorcyl amide

2924.29.33.00

3-Hydroxy-2-naphthanilide; 3-Hydroxy-2-naphtho-o-toluidide; 3-Hydroxy-2-naphtho-o-anisidine; 3-Hydroxy-2-naphtho-o-phenetidide; 3-Hydroxy-2-naphtho-4-chloro-2,5- dimethoxyanilide; 3-Hydroxy-3'-nitro-2-naphthanilide; andN,N'-Bis(acetoacetyl-o-toluidine)

2924.29.43.00

3-Ethoxy carbonyl amino phenyl-N-phenyl carbamate (Desmedipham); and Isopropyl-N-(3-chlorophenyl) car-bamate (CIPC)

2924.29.52.00

Fast color bases

2924.29.57.00

Diethylaminoacetoxylidide (Lidocaine)

2924.29.65.00

5-Bromoacetyl-2-salicylamide

2924.29.71.00

Products described in additional U.S. note 3 to section VI

2924.29.80.00

2,2-Dimethylcyclopropylcarboxamide

2925.11.00.00

Saccharin and its salts

2925.12.00.00

Glutethimide (INN)

2925.19.10.00

Ethylenebistetrabromophthalimide

2925.19.30.00

Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimide

2925.19.70.00

N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide)

2925.21.00.00

Chlordimeform (ISO)

2925.29.10.00

N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine

2925.29.18.00

N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylguanidine; andN,N-Dimethyl-N'-[3-[[(methylamino) carbonyl]- oxy] phenyl] methanimidamide monohydro- chloride