Dimethyl Oxalate
Dimethyl oxalate (CH3OOC-CO-OCH3) is the dimethyl ester of oxalic acid used as solvent and chemical intermediate. HTS 2917.11.00.00 covers oxalic acid esters per heading description and chapter ester classification notes. Liquid organic compound meeting chapter 29 purity requirements.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered aromatic polycarboxylic ester
Dimethyl oxalate is purely aliphatic; aromatic esters fall under different subheading 2917.39.
If when diluted with solvents >10%
Solutions exceeding normal transport concentrations classified as chemical preparations in 3824.
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Import Tips & Compliance
• Provide GC/MS analysis showing >99% ester purity to confirm chapter 29 vs chapter 38 mixtures
• Classify as UN2920 corrosive liquid; ensure proper DOT/IMDG packaging and declaration
• Include flash point data (65°C) and handling precautions in shipping documents
Related Products under HTS 2917.11.00.00
Oxalic Acid Dihydrate
Oxalic acid dihydrate (C2H2O4·2H2O) is the crystalline form of oxalic acid commonly used in industrial cleaning and metal polishing. It falls under HTS 2917.11.00.00 as a separate chemically defined acyclic polycarboxylic acid. This pure compound meets chapter 29 note (a) without exclusions.
Sodium Oxalate
Sodium oxalate (Na2C2O4) is the disodium salt of oxalic acid used in analytical chemistry and textile processing. Classified under HTS 2917.11.00.00 per chapter note on inorganic salts of organic acids staying with parent acid heading. Meets criteria as salt of acyclic polycarboxylic acid.
Potassium Binoxalate
Potassium hydrogen oxalate (KHC2O4) or potassium binoxalate used in photography and metal finishing. Falls under HTS 2917.11.00.00 as acid salt of oxalic acid per classification notes. Chemically defined organic compound containing required functional groups.
Diethyl Oxalate
Diethyl oxalate ((COOC2H5)2) is the ethyl ester of oxalic acid used in pharmaceutical synthesis and dye manufacturing. Specifically included in HTS 2917.11.00.00 as oxalic acid ester. Chapter notes confirm esters classified with parent acid occurring last in numerical order.
Ammonium Oxalate
Diammonium oxalate ((NH4)2C2O4·H2O) used in textile dyeing and analytical reagent applications. Classified HTS 2917.11.00.00 as salt of oxalic acid per chapter inorganic salt classification rules. Chemically defined compound meeting chapter purity standards.
Calcium Oxalate
Calcium oxalate monohydrate (CaC2O4·H2O) used in ceramics and as analytical standard. HTS 2917.11.00.00 classification follows chapter notes keeping organic acid salts with parent acid heading. Insoluble white powder meeting chemical definition.