Morpholinoethyl chloride hydrochloride; 2-Methyl-2,5-dioxo-1-oxa-2-phospholan; and (6R-trans)-7-Amino-3-methyl-8-oxo-5- thia-1-azabicyclo[4.2.0]-oct-2-ene-2- carboxylic acid
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: > Other: > Other: > Other: > Other: > Morpholinoethyl chloride hydrochloride; 2-Methyl-2,5-dioxo-1-oxa-2-phospholan; and (6R-trans)-7-Amino-3-methyl-8-oxo-5- thia-1-azabicyclo[4.2.0]-oct-2-ene-2- carboxylic acid
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 2934.99.70.00
Morpholinoethyl Chloride Hydrochloride
Morpholinoethyl chloride hydrochloride is a specific heterocyclic compound used primarily as a pharmaceutical intermediate in drug synthesis. It falls under HTS 2934.99.70.00 as one of the explicitly named 'other heterocyclic compounds' in this subheading. This chemically defined organic compound contains a morpholine ring structure characteristic of Chapter 29.
2-Methyl-2,5-Dioxo-1-Oxa-2-Phospholane
2-Methyl-2,5-dioxo-1-oxa-2-phospholane is a cyclic phosphate ester explicitly named in HTS 2934.99.70.00, classified among other heterocyclic compounds. This organophosphorus compound with five-membered ring containing oxygen and phosphorus is used in polymer synthesis and as a phosphorylating agent.
6R-trans-7-Amino-3-Methyl-8-Oxo-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylic Acid
This beta-lactam nucleus (6R-trans-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid) is explicitly listed in HTS 2934.99.70.00 as a heterocyclic intermediate for cephalosporin antibiotic synthesis. The bicyclic ring system with sulfur and nitrogen heteroatoms qualifies it as an 'other heterocyclic compound' under heading 2934.
Morpholinoethyl Chloride Hydrochloride 98% USP Grade
Pharmaceutical grade morpholinoethyl chloride hydrochloride (98% purity, USP compliant) used in synthesis of anticancer drugs and antihistamines. Explicitly named in HTS 2934.99.70.00 as a heterocyclic pharmaceutical intermediate meeting Chapter 29 chemically defined compound criteria.
Cephamycin C Core Intermediate
Synthetic cephamycin C nucleus structurally analogous to the named bicyclic beta-lactam in HTS 2934.99.70.00, used in broad-spectrum antibiotic production. Classified as 'other heterocyclic compounds' due to the characteristic 5-thia-1-azabicyclo[4.2.0]octene ring system.