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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If acylated at 7-amino position to form complete cephalosporin antibiotic
Completed antibiotics classified in heading 2941, occurring later in Chapter 29.
If imported as hydrochloride salt rather than free carboxylic acid
Salts of heterocyclic compounds classified with parent compound per Chapter 29 note 3(C).
If purity <98% and considered fermentation byproduct mixture
Mixtures not meeting 'chemically defined' criteria per Chapter 29 note (a) go to Chapter 38.
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Import Tips & Compliance
• FDA import alert 99-20 may apply; provide DMF or drug master file for pharmaceutical intermediates
• Include stereochemical confirmation (6R-trans configuration) via chiral HPLC analysis
• Classify as UN 2811 (toxic solid, organic) with appropriate GHS labeling
Related Products 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.
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.