Diethoxymethane (Formal)
Diethoxymethane, also known as formal, is a colorless liquid acetal formed from formaldehyde and ethanol. It falls under HTS 2911.00.50.00 as an acetal with oxygen function, used primarily as a solvent and chemical intermediate in organic synthesis. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed as a saturated acyclic monocarboxylic acid derivative
If chemically reclassified based on dominant functional group rather than acetal structure, it may fall under heading 2915 occurring later in numerical order.
If imported as a formulated mixture with solvents exceeding transport thresholds
Chapter note (e) excludes solutions where solvent renders product suitable for specific use beyond safety/transport; becomes mixtures of heading 3824.
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Import Tips & Compliance
• Provide Certificate of Analysis (COA) verifying chemical identity and purity to confirm classification under Chapter 29
• Declare exact chemical composition; impurities must not exceed levels that alter essential character as an acetal
• Avoid misclassification as mixtures by ensuring single-compound status per chapter note (a)
Related Products under HTS 2911.00.50.00
1,1-Diethoxyethane (Acetal)
1,1-Diethoxyethane is the diethyl acetal of acetaldehyde, a volatile liquid used as a protecting group in organic synthesis. Classified under HTS 2911.00.50.00 as an 'other' acetal with oxygen function per Chapter 29 heading 2911. It qualifies as a separate chemically defined organic compound under chapter note (a).
Benzaldehyde Diethyl Acetal
Benzaldehyde diethyl acetal is the acetal formed from benzaldehyde and ethanol, used as a fragrance intermediate and protecting agent. It falls under HTS 2911.00.50.00 as an 'other' acetal with additional oxygen function, qualifying under Chapter 29 notes for chemically defined acetals.
Cyclohexanone Diethyl Acetal
Cyclohexanone diethyl acetal serves as a protected form of cyclohexanone in multi-step synthesis. This cyclic acetal with oxygen function is classified in HTS 2911.00.50.00 as 'other' acetals per heading 2911 and Chapter 29 applicability notes.
Chloral Hydrate (2,2,2-Trichloro-1,1-ethanediol)
Chloral hydrate is the hemiacetal hydrate of chloral (trichloroacetaldehyde), used in pharmaceuticals and as a sedative. It qualifies under HTS 2911.00.50.00 as a halogenated hemiacetal derivative per heading 2911 and chapter note 4.
Acetaldehyde Dimethyl Acetal
Acetaldehyde dimethyl acetal (1,1-dimethoxyethane) is used as a flavoring agent and chemical intermediate. This simple aliphatic acetal falls under HTS 2911.00.50.00 as 'other' acetals with oxygen function, meeting Chapter 29's chemical compound criteria.
Glyoxal Bis(diethyl acetal)
Glyoxal diethyl acetal is the bis-acetal of glyoxal used in polymer and resin production. Classified in HTS 2911.00.50.00 as an 'other' acetal with multiple oxygen functions per Chapter 29 heading structure.