Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives
Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde. > Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives > Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives
Duty Rate (from China)
Products classified under Tariff item 2917.20.00
3,6-Endoxo-1,2,3,6-tetrahydrophthalic anhydride
3,6-Endoxo-1,2,3,6-tetrahydrophthalic anhydride is a bicyclic cyclenic anhydride with an oxygen-bridged norbornene structure fused to a phthalic anhydride moiety. It is a separate chemically defined organic compound and a derivative of a cyclenic polycarboxylic acid, falling under tariff item 2917.20.00. This compound is a key monomer for producing high-temperature-resistant polymers and resins.
Bicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride
Bicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride, also known as nadic anhydride, is a bicyclic cyclanic derivative with a norbornane framework and a fused anhydride group. As a separate chemically defined organic compound, it qualifies as a cyclanic polycarboxylic acid anhydride under tariff item 2917.20.00. It is primarily used as a curing agent for epoxy resins and in the production of alkyd resins.
Camphoric acid
Camphoric acid (1,2,2-trimethylcyclopentane-1,3-dicarboxylic acid) is a naturally derived cyclanic polycarboxylic acid with a bicyclic terpenoid structure. It is a separate chemically defined organic compound and fits the cycloterpenic category of tariff item 2917.20.00. This compound is used in pharmaceuticals, plasticizers, and as a chemical intermediate.
Cyclohexane-1,2-dicarboxylic acid
Cyclohexane-1,2-dicarboxylic acid is a cyclanic polycarboxylic acid with two carboxyl groups attached to adjacent carbons of a cyclohexane ring. As a separate chemically defined organic compound, it falls under tariff item 2917.20.00. This compound is used as an intermediate in the production of plasticizers, resins, and pharmaceuticals.
Cyclohexane-1,4-dicarboxylic acid
Cyclohexane-1,4-dicarboxylic acid is a symmetrical cyclanic polycarboxylic acid with carboxyl groups at the 1 and 4 positions of the cyclohexane ring. It is a separate chemically defined organic compound and falls under tariff item 2917.20.00. This compound is used in the synthesis of polymers, plasticizers, and pharmaceutical intermediates.
Cyclooctane-1,5-dicarboxylic acid
Cyclooctane-1,5-dicarboxylic acid is a medium-ring cyclanic polycarboxylic acid with carboxyl groups at the 1 and 5 positions of the cyclooctane ring. As a separate chemically defined organic compound, it fits tariff item 2917.20.00. This specialty chemical is used in research and development of new materials and catalysts.
Hexahydrophthalic anhydride
Hexahydrophthalic anhydride is the cyclic anhydride of cyclohexane-1,2-dicarboxylic acid, making it a derivative of a cyclanic polycarboxylic acid. It is a separate chemically defined organic compound and is specifically covered by tariff item 2917.20.00. This compound is widely used as a curing agent for epoxy resins and in the production of alkyd resins and plasticizers.
Norbornane tetracarboxylic dianhydride
Norbornane tetracarboxylic dianhydride is a bicyclic cyclanic compound with four carboxylic groups forming dual anhydride functionalities on a norbornane framework. As a separate chemically defined organic compound, it qualifies as a cyclanic polycarboxylic acid derivative under tariff item 2917.20.00. It is used in the production of polyimide films and high-performance polymers.
Tetrahydrophthalic anhydride
Tetrahydrophthalic anhydride is a partially hydrogenated cyclenic polycarboxylic acid anhydride with a cyclohexene ring structure. It is a separate chemically defined organic compound and falls under tariff item 2917.20.00 as a cyclenic derivative. This compound is widely used in the production of alkyd resins, epoxy curing agents, and agricultural chemicals.