Diethyl L-Tartrate
Diethyl L-tartrate is the ethyl ester of L-tartaric acid, but pure esters derive classification from the parent acid under chapter note 5(B), placing it with tartaric acid in HTS 2918.12.00.00. Used as a chiral auxiliary in asymmetric synthesis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorrectly classified without applying note 5(B)
Without note 5(B), esters would go to 2918.14, but ethyl esters follow parent acid.
If containing epoxide or cyclic ether impurities
Cyclic oxygen heterocycles exclude from acyclic carboxylic derivatives.
If in solution for lab retail sale
Retail chemical mixtures shift to chapter 38 preparations.
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Import Tips & Compliance
• ,TSCA notification required for new uses; provide synthesis route if queried
• Package under nitrogen to prevent hydrolysis during ocean transit
Related Products under HTS 2918.12.00.00
L(+)-Tartaric Acid
L(+)-Tartaric acid is the naturally occurring enantiomer of tartaric acid, a dicarboxylic acid with two hydroxyl groups, classified under HTS 2918.12.00.00 as tartaric acid with alcohol function but without other oxygen function. It is commonly used in winemaking for acidification and in food as a souring agent.
DL-Tartaric Acid (Racemic)
DL-Tartaric acid is the racemic mixture of D- and L-tartaric acid, chemically defined as tartaric acid under HTS 2918.12.00.00 due to its carboxylic acids with alcohol function. Used in pharmaceuticals and as a chiral resolving agent in organic synthesis.
Food-Grade Tartaric Acid USP
Tartaric acid meeting USP standards for food and pharmaceutical use, classified under HTS 2918.12.00.00 as the pure chemically defined compound with alcohol function. Widely used as an acidulant in beverages, candies, and effervescent tablets.
Tartaric Acid Technical Grade 99%
Technical grade tartaric acid at 99% purity for industrial applications like metal polishing and textiles, classified as tartaric acid under HTS 2918.12.00.00 per chapter note 1(a) allowing impurities. Less refined than USP but still chemically defined.
Monohydrate Tartaric Acid Crystals
Tartaric acid monohydrate in crystalline form, chemically defined with one water molecule per tartaric acid molecule, classified under HTS 2918.12.00.00 per note 1(d). Used in effervescent formulations and as a buffer.
Tartaric Acid for Wine Making
High-purity L-tartaric acid specifically packaged for oenological use in adjusting wine acidity, classified under HTS 2918.12.00.00 as pure tartaric acid despite end use. Meets OIV standards for food safety.