Chapter 2918 — Customs Tariff Headings

2918.2Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives:

2918.30.00Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives

2918.9Other:

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Products classified under Tariff item 29.18

85% Lactic Acid Food Grade

85% Lactic Acid Food Grade is an aqueous solution of lactic acid, a separate chemically defined organic compound with both carboxylic acid and alcohol functions. The water content is a normal and necessary method of putting up this product for transport and safety, as permitted by Chapter 29 Note 1(d). It is used as an acidity regulator in beverages and dairy products.

Ammonium Lactate

Ammonium lactate is the ammonium salt of lactic acid, formed from the acid-function organic compound and an inorganic base. Under Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified in the heading appropriate to the organic compound, which is this tariff item for lactic acid salts. It is used as a lotion base in pharmaceutical moisturizers.

Bio-Based Lactic Acid 98%

Bio-Based Lactic Acid 98% is a pure chemically defined organic compound produced from corn fermentation, with the origin of the product not affecting its classification. It contains both carboxylic acid and alcohol functions, falling squarely within the scope of heading 29.18. The high purity level confirms it is a separate chemically defined compound under Chapter 29 Note 1(a).

Butyl Lactate

Butyl lactate is the butyl ester of lactic acid, formed from lactic acid and butyl alcohol. Under Chapter 29 Note 5(A), esters of acid-function organic compounds are classified with the compound that occurs last in numerical order, which is the acid (lactic acid) in this case. It is used as an industrial solvent for lacquers, inks, and coatings.

Calcium Lactate

Calcium lactate is the calcium salt of lactic acid, an inorganic salt of an organic compound with carboxylic acid and alcohol functions. Under Chapter 29 Note 5(C)(1), it is classified in the heading appropriate to the organic compound, which is this tariff item for lactic acid salts. It is widely used as a calcium supplement in food fortification.

D-(-)-Lactic Acid Pharmaceutical Grade

D-(-)-Lactic Acid Pharmaceutical Grade is the synthetic enantiomer of lactic acid, a separate chemically defined organic compound with carboxylic acid and alcohol functions. As a single stereoisomer, it qualifies under Chapter 29 Note 1(a) as a distinct chemical compound. It is used in specialized pharmaceutical applications where enantiomeric purity is critical.

DL-Lactic Acid Technical Grade

DL-Lactic Acid Technical Grade is the racemic mixture of D- and L-enantiomers of lactic acid, a hydroxy carboxylic acid with both alcohol and carboxylic acid functions. As a mixture of two isomers of the same organic compound, it qualifies under Chapter 29 Note 1(b). It is used in industrial processes such as polymer production and chemical synthesis.

Ethyl Lactate

Ethyl lactate is the ethyl ester of lactic acid, formed from lactic acid and ethanol. Under Chapter 29 Note 5(B), esters of ethyl alcohol with acid-function organic compounds are classified in the same heading as the corresponding acid, which is this tariff item. It is used as a biodegradable solvent in electronics cleaning and pharmaceutical applications.

Glacial Lactic Acid 90% Pure

Glacial Lactic Acid 90% Pure is a concentrated form of lactic acid, a separate chemically defined organic compound with carboxylic acid and alcohol functions. The 90% concentration is achieved through water content that serves as a normal and necessary method of putting up the product, as permitted by Chapter 29 Note 1(d). It is used in chemical synthesis and cosmetics manufacturing.

High Purity Lactic Acid for Cosmetics

High Purity Lactic Acid for Cosmetics is a chemically defined organic compound with carboxylic acid and alcohol functions, used as an exfoliant and pH adjuster in cosmetic formulations. It is not put up in measured doses or for retail sale, so it remains classified under this tariff item rather than heading 33.04. The product meets the requirements of Chapter 29 Note 1(a) as a separate chemically defined compound.

Lactic Acid Bulk Industrial Drum

Lactic Acid Bulk Industrial Drum is a standard chemically defined organic compound with carboxylic acid and alcohol functions, supplied in large quantities for industrial manufacturing. The product is not put up for retail sale and contains no additives beyond what is necessary for transport, as permitted by Chapter 29 Notes 1(d) and (e). It is used in various industrial processes.

Lactic Acid USP Grade

Lactic Acid USP Grade meets United States Pharmacopeia standards for pharmaceutical and food use, confirming its identity as a separate chemically defined organic compound with carboxylic acid and alcohol functions. The USP grade designation supports classification under Chapter 29 Note 1(a) as a pure compound. It is used in pharmaceutical formulations and food processing.

Lactic Acid with 0.1% Stabilizer

Lactic Acid with 0.1% Stabilizer contains a small amount of anti-caking agent necessary for preservation or transport, as permitted by Chapter 29 Note 1(f). The stabilizer does not render the product particularly suitable for a specific use, maintaining its classification as lactic acid under this tariff item. It remains a carboxylic acid with alcohol function.

Lactide (L,L-Dilactide)

Lactide (L,L-Dilactide) is the cyclic dimer ester of lactic acid, formed by the intramolecular esterification of two lactic acid molecules. As a derivative of lactic acid, it is classified in the same subheading as lactic acid under Chapter 29 Subheading Note 1. It is used as a monomer precursor for polylactic acid (PLA) bioplastic production.

L-(+)-Lactic Acid 88% Solution

L-(+)-Lactic Acid 88% Solution is the naturally occurring enantiomer of lactic acid, a separate chemically defined organic compound with both carboxylic acid and alcohol functions. The 88% aqueous solution is a normal and necessary method of putting up this product for transport, as permitted by Chapter 29 Note 1(d). It is supplied for industrial use in various applications.

Magnesium Lactate

Magnesium lactate is the magnesium salt of lactic acid, a carboxylic acid with an alcohol function. It is used in dietary supplements, antacids, and as a stabilizer in food processing. As a salt of lactic acid, it falls under tariff item 2918.11.00, which covers lactic acid, its salts, and esters.

Methyl Lactate

Methyl lactate is the methyl ester of lactic acid, a carboxylic acid with an alcohol function. It is used as a green solvent in paints, coatings, and cleaning products. As an ester of lactic acid, it is classified under tariff item 2918.11.00, which includes lactic acid, its salts, and esters.

Potassium Lactate

Potassium lactate is the potassium salt of lactic acid, a carboxylic acid with an alcohol function. It is used as a food preservative (E326), flavor enhancer, and humectant in meat products and baked goods. As a salt of lactic acid, it falls under tariff item 2918.11.00, which covers lactic acid, its salts, and esters.

Sodium Lactate

Sodium lactate is the sodium salt of lactic acid, a carboxylic acid with an alcohol function. It is commonly used as a preservative, moisturizer in cosmetics, and humectant in food products. As a salt of lactic acid, it is classified under tariff item 2918.11.00, which includes lactic acid, its salts, and esters.

Zinc Lactate

Zinc lactate dihydrate is the zinc salt of lactic acid, a carboxylic acid with an alcohol function. It is used in oral care products, dietary supplements, and as a catalyst in chemical processes. As a salt of lactic acid, it falls under tariff item 2918.11.00, which covers lactic acid, its salts, and esters.

Diethyl L-Tartrate

Diethyl L-tartrate is the ethyl ester of L-tartaric acid. Under Chapter 29 Note 5(B), esters of ethyl alcohol with acid-function organic compounds are classified in the same heading as the corresponding acid, so this product falls under tariff item 2918.12.00 as tartaric acid. It is used as a chiral auxiliary in organic synthesis.

DL-Tartaric Acid (Racemic)

DL-Tartaric acid is the racemic mixture of D- and L-tartaric acid, a chemically defined organic compound with two hydroxyl groups and two carboxyl groups. Under Chapter 29 Note 1(b), mixtures of isomers of the same organic compound are covered, so it classifies under tariff item 2918.12.00. It is used in pharmaceuticals and as a chiral resolving agent.

D(-)-Tartaric Acid

D(-)-Tartaric acid is the D-enantiomer of tartaric acid, a chemically defined organic compound with the same molecular structure as L-tartaric acid but opposite optical rotation. Under Chapter 29 Note 1(a), separate chemically defined organic compounds are covered, so it classifies under tariff item 2918.12.00. It is used in the resolution of racemic mixtures and specialty synthesis.

Food-Grade Tartaric Acid USP

Food-grade tartaric acid meeting USP standards is a pure, chemically defined compound with two hydroxyl and two carboxyl groups. Under Chapter 29 Note 1(a), it classifies under tariff item 2918.12.00 as tartaric acid. It is widely used as an acidulant in beverages, candies, and other food products.

L(+)-Tartaric Acid

L(+)-Tartaric acid is the naturally occurring enantiomer of tartaric acid, a dicarboxylic acid with two hydroxyl groups. Under Chapter 29 Note 1(a), it is a separate chemically defined organic compound, classifying under tariff item 2918.12.00. It is used in food, pharmaceuticals, and as a chiral building block.

Monohydrate Tartaric Acid Crystals

Tartaric acid monohydrate is a crystalline form of tartaric acid with one water molecule per molecule of tartaric acid. Under Chapter 29 Note 1(d), products dissolved in water are covered, so this hydrate classifies under tariff item 2918.12.00. It is used in effervescent formulations and as a buffer.

Natural Tartaric Acid from Wine Lees

Natural tartaric acid extracted from wine lees is chemically identical to synthetic tartaric acid, with the same molecular structure. Under Chapter 29 Note 1(a), the origin does not affect classification, so it falls under tariff item 2918.12.00. It is preferred for organic certification and natural product applications.

Pharmaceutical Tartaric Acid EP/BP

Pharmaceutical-grade tartaric acid meeting EP/BP standards is a pure, chemically defined compound used as an excipient and pH adjuster in drug formulations. Under Chapter 29 Note 1(a), it classifies under tariff item 2918.12.00. It is used in tablets, syrups, and injectables.

Potassium D-Hydrogen Tartrate

Potassium D-hydrogen tartrate, also known as potassium bitartrate or cream of tartar, is the acid salt of D-tartaric acid. Under Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified in the heading appropriate to the organic compound, so it falls under tariff item 2918.12.00. It is used in baking and food applications.

Tartaric Acid Anhydrous 99.5%

Anhydrous tartaric acid with 99.5% purity is a white crystalline powder with two hydroxyl and two carboxyl groups. Under Chapter 29 Note 1(a), it is a separate chemically defined organic compound, classifying under tariff item 2918.12.00. It is essential in wine stabilization and metal cleaning solutions.

Tartaric Acid for Effervescent Tablets

Tartaric acid for effervescent tablets is a coarse granular form of pure tartaric acid optimized for rapid CO2 release with bicarbonate. Under Chapter 29 Note 1(a), the particle size does not affect classification, so it falls under tariff item 2918.12.00. It is used in effervescent pharmaceutical and food products.

Tartaric Acid for Wine Making

High-purity L-tartaric acid specifically packaged for oenological use in adjusting wine acidity is a pure, chemically defined compound. Under Chapter 29 Note 1(a), the end use does not affect classification, so it falls under tariff item 2918.12.00. It meets OIV standards for food safety.

Tartaric Acid Powder 50 Micron

Tartaric acid powder with 50 micron particle size is an ultra-fine form of pure tartaric acid for spray drying and instant beverages. Under Chapter 29 Note 1(a), micronization does not change the chemical classification, so it falls under tariff item 2918.12.00. It is used in food and beverage applications.

Tartaric Acid Stabilized for Transport

Tartaric acid stabilized for transport contains added stabilizers to prevent decomposition during long sea voyages. Under Chapter 29 Note 1(f), products with added stabilizers necessary for preservation or transport are covered, so it classifies under tariff item 2918.12.00. It is used in bulk industrial applications.

Tartaric Acid Technical Grade 99%

Technical grade tartaric acid at 99% purity is a less refined form used for industrial applications like metal polishing and textiles. Under Chapter 29 Note 1(a), impurities are allowed, so it classifies under tariff item 2918.12.00. It is chemically defined as tartaric acid despite the lower purity.

Ammonium Bitartrate

Ammonium bitartrate is a salt of tartaric acid used in wine stabilization and as a laboratory reagent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The bitartrate form retains the carboxylic acid and alcohol functions characteristic of tartaric acid.

Bulk Baking Stabilizer Potassium Bitartrate

Industrial food processing grade cream of tartar in bulk 50lb sacks for meringue production and candy manufacturing. It is a chemically defined potassium salt of tartaric acid, classified under this tariff item.

Bulk Rochelle Salt Dihydrate USP

Pharmaceutical bulk potassium sodium tartrate tetrahydrate (dihydrate formula KNaC4H4O6·4H2O) meeting USP monograph. It is classified under this tariff item as a specifically named Rochelle salt of tartaric acid.

Calcium Tartrate Dihydrate

Calcium tartrate dihydrate is the calcium salt of tartaric acid, used as a food additive and stabilizer in beverages and confectionery. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The dihydrate form is a stable crystalline product.

Dibutyl Tartrate

Dibutyl tartrate is an ester of tartaric acid used as a plasticizer in resins and as a solvent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for esters of tartaric acid. The ester retains the carboxylic acid and alcohol functions characteristic of tartaric acid.

Diethyl Tartrate

Diethyl tartrate is an ester of tartaric acid used as a chiral building block in organic synthesis and fragrances. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for esters of tartaric acid. The ester is a clear, colorless liquid.

Dimethyl Tartrate

Dimethyl tartrate is an ester of tartaric acid used as an intermediate in pharmaceutical synthesis and polymer production. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for esters of tartaric acid. The ester is a white crystalline solid.

Disodium Tartrate

Disodium tartrate is a salt of tartaric acid used in detergents and as a chelating agent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The product is a white crystalline powder.

Food-Grade Potassium Bitartrate Powder

Pure potassium bitartrate, commonly known as cream of tartar, is a natural byproduct of winemaking used as a food additive for stabilizing egg whites and preventing sugar crystallization. It is classified under this tariff item as a salt of tartaric acid.

Laboratory Reagent Tartar Emetic

High-purity tartar emetic (potassium antimony tartrate) labeled for laboratory reagent use in analytical procedures. It is a chemically defined salt of tartaric acid, classified under this tariff item as a salt of tartaric acid with alcohol function.

Magnesium Tartrate

Magnesium tartrate is a salt of tartaric acid used as a nutritional supplement and laxative component. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The product is a white crystalline powder.

Pharmaceutical Grade Tartar Emetic

Pharmaceutical-grade potassium antimony tartrate meeting BP/EP monographs for use in expectorant formulations. It is a chemically defined salt of tartaric acid, falling under this tariff item as a salt of tartaric acid with alcohol function.

Pharma-Intermediate Cream of Tartar Granules

Granulated potassium bitartrate serving as an intermediate for API synthesis in antacid formulations and effervescent tablets. It is classified under this tariff item as a pure salt per Chapter 29 note (C)(1).

Potassium Antimony Tartrate Crystals

Crystalline potassium antimony tartrate, also known as tartar emetic, is a double salt used in analytical chemistry and as an emetic. It is a chemically defined salt of tartaric acid, classified under this tariff item.

Potassium Antimony Tartrate USP Grade

Potassium antimony tartrate, known as tartar emetic, is a chemically defined salt of tartaric acid with antimony and potassium, meeting USP standards for pharmaceutical use. It falls under this tariff item as a salt of tartaric acid.

Potassium Sodium Tartrate Crystals (Rochelle Salt)

Potassium sodium tartrate, commonly known as Rochelle salt, is a double salt of tartaric acid. It is a separate chemically defined organic compound with an alcohol function, classified under the tariff item for salts of tartaric acid. This product is used in food processing, pharmaceuticals, and various industrial applications.

Potassium Sodium Tartrate (Rochelle Salt)

Potassium sodium tartrate, known as Rochelle salt, is a double salt of tartaric acid used in baking powders and as a sequestrant. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The product is a white crystalline powder.

Potassium Tartrate

Potassium tartrate is a salt of tartaric acid, commonly used as an analytical reagent and a food buffer. It is classified under tariff item 2918.13.00 because it is a salt of tartaric acid, which falls under the heading for carboxylic acids with an alcohol function. The product does not have any additional functional groups that would alter its classification.

Purified Wine Tartrate Potassium Salt

Refined potassium bitartrate from grape wine lees, certified organic for natural wine acidification. It is a chemically defined organic salt with alcohol function, classified under this tariff item.

Rochelle Salt Food Grade Sequestrant

Food-grade potassium sodium tartrate, also known as Rochelle salt, is a high-purity salt of tartaric acid used as a sequestrant in canned foods and beverages. It is a separate chemically defined compound with an alcohol function, falling under the tariff item for salts of tartaric acid. The FCC-grade ensures compliance with food safety standards.

Rochelle Salt for Piezoelectric Crystals

Rochelle salt for piezoelectric crystals is high-purity potassium sodium tartrate grown into large single crystals. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. These crystals are used in early microphones and transducers.

Rochelle Salt for Silvering Mirrors

High-purity potassium sodium tartrate, or Rochelle salt, is used in traditional mirror silvering solutions as a reducing agent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The product is essential for depositing silver films.

Rochelle Salt Pharmaceutical Grade

Pharmaceutical-grade potassium sodium tartrate, or Rochelle salt, is a high-purity salt of tartaric acid meeting USP standards. It is used in pharmaceutical formulations and as a sequestrant. This separate chemically defined compound with an alcohol function is classified under the tariff item for salts of tartaric acid.

Sodium Tartrate Dibasic

Sodium tartrate dibasic is a salt of tartaric acid, used in buffering solutions and as a food acidity regulator. It falls under tariff item 2918.13.00 because it is a salt of tartaric acid, which is classified under the heading for carboxylic acids with an alcohol function. The product is a separate chemically defined organic compound, consistent with Chapter 29 requirements.