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
Oxygen-function amino-compounds: > Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof: > Other: > Aromatic: > Other: > 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
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2922.19.20.00
4,4'-Bis(dimethylamino) benzhydrol (Michler's Hydrol)
Michler's hydrol is an aromatic amino-alcohol compound used primarily as an intermediate in the synthesis of dyes and pigments. It features a benzhydrol core with dimethylamino substituents, classifying it under HTS 2922.19.2000 as a specific aromatic amino-alcohol other than those with multiple oxygen functions. This chemically defined organic compound falls within Chapter 29's scope for oxygen-function amino-compounds.
5'-[3'-(Dimethylamino)propyl]-10',11'-dihydro-5H'-dibenzo[a,d]cyclohepten-5'-ol (Dibenzcarbinol)
Dibenzcarbinol is a complex aromatic amino-alcohol serving as a pharmaceutical intermediate and research chemical. Its structure includes a dibenzocycloheptene core with a dimethylaminopropyl chain and hydroxyl group, explicitly listed under HTS 2922.19.2000 for aromatic amino-alcohols. As a separate chemically defined organic compound, it adheres to Chapter 29's provisions for oxygen-function amino-compounds.
1-(p-Nitrophenyl)-2-amino-1,3-propanediol
This compound is a nitro-substituted aromatic amino-alcohol used in organic synthesis and as a pharmaceutical building block. It contains a nitrophenyl group, amino, and diol functions, specifically enumerated in HTS 2922.19.2000 as an other aromatic amino-alcohol. Classification follows Chapter 29 rules for chemically defined oxygen-function amino-compounds, including nitrated derivatives.
Michler's Hydrol with Stabilizer
Stabilized 4,4'-Bis(dimethylamino) benzhydrol for safe transport in dye manufacturing. The added stabilizer preserves the compound without altering its use, allowed under Chapter 29 note (f). Remains classified in HTS 2922.19.2000 as the named aromatic amino-alcohol.
Dibenzcarbinol Aqueous Solution
5'-[3'-(Dimethylamino)propyl]...-ol dissolved in water for safe lab transport, per Chapter 29 note (d). Retains classification as the named compound under HTS 2922.19.2000.