Diethyl L-tartrate
Diethyl L-tartrate contains a five-membered lactone-like structure in tartaric acid derivatives with oxygen heteroatoms, classified under HTS 2932.20.50 per ester rules. Used as chiral auxiliary in asymmetric synthesis.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| π¨π³China | 3.7% | β | 3.7% |
| π²π½Mexico | 3.7% | β | 3.7% |
| π¨π¦Canada | 3.7% | β | 3.7% |
| π©πͺGermany | 3.7% | β | 3.7% |
| π―π΅Japan | 3.7% | β | 3.7% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as tartaric acid ester
Chapter notes specify ester classification follows parent acid heading.
If pre-complexed with titanium for TADDOLATE catalyst
Organometallic complexes shift to organic catalyst classification.
Not sure which classification is right?
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Import Tips & Compliance
β’ Enantiomeric excess (>99% ee) certification mandatory for research grade
β’ Light-sensitive; amber glass bottles required for stability
β’ Avoid 'catalyst' declaration which may trigger different documentation
Related Products under HTS 2932.20.50
Ξ³-Butyrolactone (GBL)
Ξ³-Butyrolactone is a five-membered lactone ring heterocyclic compound with oxygen as the sole heteroatom, classified under HTS 2932.20.50 as 'other lactones'. It is a colorless liquid used as a solvent and intermediate in pharmaceutical synthesis.
Ξ΅-Caprolactone
Ξ΅-Caprolactone, a seven-membered lactone with oxygen heteroatom, is classified under HTS 2932.20.50 as other lactones. Primary use as monomer for polycaprolactone in biomedical applications.
Pantolactone
Pantolactone, a five-membered lactone used in pantothenic acid synthesis, contains oxygen heteroatom only and falls under HTS 2932.20.50. Essential intermediate for vitamin B5 production.
Glucono-delta-Lactone (GDL)
Glucono-delta-lactone is a six-membered lactone derived from glucose oxidation, with oxygen heteroatom only, under HTS 2932.20.50. Widely used as slow-release acidulant in food processing.
Levulinic Acid Lactone
Levulinic acid lactone, a biomass-derived six-membered ring lactone with oxygen heteroatom, falls under HTS 2932.20.50. Used in green chemistry solvent applications.
Ribonolactone
Ribonolactone, a five-membered furanose lactone from ribose, contains oxygen heteroatom only and is classified under HTS 2932.20.50. Used in nucleotide synthesis.