Other
Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulphonated, nitrated or nitrosated derivatives. > Acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2909.1
Anhydrous Diethyl Ether
Anhydrous diethyl ether is a water-free form of diethyl ether, a chemically defined acyclic ether. It is commonly used as a solvent in Grignard reactions and other moisture-sensitive chemical syntheses. The anhydrous state is a standard purification method and does not render the product particularly suitable for a specific use, so it remains classified under tariff item 2909.11.00.
2909.11.00Diethyl Ether ACS Reagent Grade
Diethyl ether ACS reagent grade is a high-purity form of diethyl ether meeting American Chemical Society specifications for analytical procedures. It is a chemically defined acyclic ether and the ACS specifications ensure reagent purity without adding substances that would make it particularly suitable for a specific use. Therefore, it falls under tariff item 2909.11.00.
2909.11.00Diethyl Ether Extraction Solvent
Diethyl ether used as an extraction solvent for natural products such as essential oils and alkaloids is a chemically defined acyclic ether. Its use as a general solvent does not make it particularly suitable for a specific use, as it is a standard application of diethyl ether. Thus, it is classified under tariff item 2909.11.00.
2909.11.00Diethyl Ether (Laboratory Grade)
Laboratory grade diethyl ether is a pure, chemically defined acyclic ether used as a solvent in organic chemistry laboratories. It is a volatile, colorless liquid with a characteristic odor and contains no impurities or additives that would render it particularly suitable for a specific use. Therefore, it is classified under tariff item 2909.11.00.
2909.11.00Diethyl Ether Pharmaceutical Intermediate
Diethyl ether used as a pharmaceutical intermediate is a high-purity, chemically defined acyclic ether employed in the synthesis of pharmaceutical active ingredients. It is not excluded by Chapter 29 note 2(e) as it is not an immunological product. The product falls under tariff item 2909.11.00 as it is a chemically defined acyclic ether.
2909.11.00Stabilized Diethyl Ether
Stabilized diethyl ether contains a small amount of BHT (butylated hydroxytoluene) added to prevent peroxide formation during storage and transport. This stabilizer is necessary for preservation and is permitted under Chapter 29 note 1(f). The product remains classified as diethyl ether under tariff item 2909.11.00.
2909.11.00Technical Grade Diethyl Ether
Technical grade diethyl ether with a purity of 95-98% is used for industrial applications such as paint stripping and as a reaction solvent. It is a chemically defined organic compound containing impurities, which is permitted under Chapter 29 note 1(a). The product is classified under tariff item 2909.11.00 as diethyl ether.
2909.19.001,3-Propanediol Di-n-butyl Ether
1,3-Propanediol di-n-butyl ether is an acyclic ether with two butyl groups attached to the dihydric 1,3-propanediol backbone. It is a chemically defined organic compound used as a solvent and falls under tariff item 2909.19.00.
2909.19.001,4-Butanediol Dimethyl Ether
1,4-Butanediol dimethyl ether is an acyclic ether with methyl groups on both ends of the dihydric 1,4-butanediol. It is used as a diesel fuel additive and is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.001-Methoxy-2-Propanol (Propylene Glycol Monomethyl Ether)
1-Methoxy-2-propanol is an acyclic ether-alcohol derived from methanol and propylene glycol, used in paints and coatings. While ether-alcohols have separate provisions, this specific isomer falls under tariff item 2909.19.00 as an 'other' acyclic ether, being a chemically defined compound per Chapter 29 Note 1(a).
2909.19.002,2'-Dichlorodiethyl Ether (Triethylene Glycol Dichloride)
2,2'-Dichlorodiethyl ether, also known as triethylene glycol dichloride, is a halogenated acyclic ether of triethylene glycol. It is used as an intermediate in chemical synthesis and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Butyl Methyl Ether
Butyl methyl ether is an acyclic mixed ether from butanol and methanol, used in organic synthesis and as a reaction medium. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Butynediol Butyl Ether
Butynediol butyl ether is an acyclic ether-alcohol derived from butynediol, with one free hydroxyl group and one butyl ether group. It is a specialty intermediate with acetylenic functionality and falls under tariff item 2909.19.00.
2909.19.00Diethylene Glycol Dichloride
Diethylene glycol dichloride is a halogenated derivative of diethylene glycol, where both hydroxyl groups are replaced by chlorine atoms. It is structurally analogous to triethylene glycol dichloride and is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Diethylene Glycol Diethyl Ether
Diethylene glycol diethyl ether is an acyclic ether derived from diethylene glycol, with both hydroxyl groups etherified with ethyl groups. It is used as a solvent and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Diethyl Ether (Ethyl Ether)
Diethyl ether is a colorless, highly volatile acyclic ether derived from ethyl alcohol, used primarily as a solvent and in organic synthesis. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Diisopropyl Ether
Diisopropyl ether is a branched acyclic ether from isopropanol, used as an extraction solvent and gasoline stabilizer. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Dimethoxymethane (Methylal)
Dimethoxymethane (methylal) is the dimethyl acetal of formaldehyde and an acyclic ether of methanol. Used as a solvent and chemical intermediate, it is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Dipropylene Glycol Methyl Ether
Dipropylene glycol methyl ether is an acyclic monoether derived from dipropylene glycol, with one methyl group replacing a hydroxyl. It is used as a solvent in coatings and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Ethoxydiglycol (Diethylene Glycol Monoethyl Ether)
Ethoxydiglycol, also known as diethylene glycol monoethyl ether, is a monoetherified diethylene glycol with one ethyl ether and one free hydroxyl group. It is used as a cosmetic solvent and penetration enhancer, falling under tariff item 2909.19.00.
2909.19.00Ethyl Tert-Butyl Ether (ETBE)
Ethyl tert-butyl ether (ETBE) is an acyclic ether of ethanol and tert-butanol, used as a high-octane biofuel oxygenate. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Glycerol Triethyl Ether
Glycerol triethyl ether is the fully etherified derivative of glycerol, with three ethyl groups replacing all hydroxyl groups. It is a chemically defined acyclic ether of a polyhydric alcohol, classified under tariff item 2909.19.00.
2909.19.00Hexylene Glycol Diethyl Ether
Hexylene glycol diethyl ether is derived from 2-methyl-2,4-pentanediol, fully etherified with ethyl groups. It is a higher acyclic polyhydric alcohol ether used as a coalescent in latex paints, classified under tariff item 2909.19.00.
2909.19.00Industrial MTBE Fuel Oxygenate
This industrial MTBE fuel oxygenate is a chemically defined acyclic ether (2-methoxy-2-methylpropane) used to oxygenate reformulated gasoline. It falls under tariff item 2909.19.00 as an 'other' acyclic ether, consistent with Chapter 29 Note 1(a) for separate chemically defined organic compounds.
2909.19.00Isobutyl Methyl Ether
Isobutyl methyl ether is a branched acyclic ether derived from isobutanol and methanol, used primarily as a specialty solvent in industrial processes. As a separate chemically defined organic compound, it falls under tariff item 2909.19.00 for other acyclic ethers.
2909.19.00Methyl Tert-Butyl Ether (MTBE)
MTBE is an acyclic ether produced from methanol and isobutylene, widely used as a gasoline oxygenate additive. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Methyl Tertiary-Butyl Ether (MTBE) 99% Purity
Methyl tertiary-butyl ether (MTBE) at 99% purity is a colorless, volatile acyclic ether used as a high-octane gasoline additive. It qualifies under tariff item 2909.19.00 as an 'other' acyclic ether, being a separate chemically defined compound per Chapter 29 Note 1(a).
2909.19.00MTBE 99.5% Spectroscopic Grade
Spectroscopic-grade MTBE at 99.5% purity is a chemically defined acyclic ether used as a solvent in analytical and research applications. It falls under tariff item 2909.19.00 as an 'other' acyclic ether, consistent with Chapter 29 Note 1(a) for separate chemically defined organic compounds.
2909.19.00MTBE Gasoline Blending Agent 98.5%
This 98.5% pure MTBE is used for blending into unleaded gasoline to improve combustion efficiency. It qualifies as a separate chemically defined acyclic ether under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Neopentyl Glycol Diisobutyl Ether
Neopentyl glycol diisobutyl ether is derived from dihydric neopentyl glycol with two isobutyl ether groups. It is a chemically defined acyclic polyhydric alcohol ether, classified under tariff item 2909.19.00.
2909.19.00Pentaerythritol Tetraethyl Ether
Pentaerythritol tetraethyl ether is a tetrafunctional acyclic ether produced by fully etherifying the tetrahydric alcohol pentaerythritol with ethyl groups. As a chemically defined acyclic ether of a polyhydric alcohol, it falls under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified.
2909.19.00Polyethylene Glycol Di-n-propyl Ether (PEG-400)
Polyethylene glycol di-n-propyl ether (PEG-400) consists of a polyethylene glycol chain terminated at both ends with propyl ether groups. As a chemically defined acyclic ether of a polyhydric alcohol, it is classified under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified.
2909.19.00Propylene Glycol Diethyl Ether
Propylene glycol diethyl ether is the diether of 1,2-propanediol with two ethyl groups, forming a chemically defined acyclic ether. It is classified under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified, as it is not an ethylene glycol-specific ether.
2909.19.00Pure MTBE Chemical Intermediate
Ultra-pure MTBE used as a solvent or intermediate in organic synthesis is a chemically defined acyclic ether. It meets Chapter 29 criteria for separate chemically defined compounds and is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Refinery-Grade MTBE Octane Booster
Refinery-grade MTBE is a high-purity acyclic ether designed to enhance gasoline octane without aromatics. It adheres to Chapter 29 scope for chemically defined acyclic ethers and is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Sorbitol Hexaethyl Ether
Sorbitol hexaethyl ether is the fully perethylated derivative of the hexahydric alcohol sorbitol, with six ethyl ether linkages. As a chemically defined acyclic ether of a polyhydric alcohol, it falls under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified.
2909.19.00Stabilized MTBE for Transport
Stabilized MTBE for transport contains an added anti-dusting agent, which is allowable under Chapter 29 Note 1(g) as long as it does not render the product suitable for a specific use. It remains classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Technical Grade MTBE for Fuel Additives
Technical-grade MTBE with a stabilizer for safe transport is classified as a pure acyclic ether per Chapter 29 Note 1(f) for added stabilizers. It falls under tariff item 2909.19.00 as an 'other' acyclic ether, provided the stabilizer is necessary for preservation or transport.
2909.19.00Triethylene Glycol Bis(2-chloroethyl) Ether Stabilized
Triethylene glycol bis(2-chloroethyl) ether stabilized is triethylene glycol dichloride with added antioxidants for preservation. The stabilizer is permitted under Chapter 29 Note 1(f) and does not change the essential character, so it remains classified under tariff item 2909.19.00.
2909.19.00Triethylene Glycol Dichloride
Triethylene glycol dichloride is a halogenated acyclic ether derived from triethylene glycol, with chlorine atoms replacing the hydroxyl groups. It is used as a chemical intermediate and is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Triethylene Glycol Dichloride Technical Grade 98%
Triethylene glycol dichloride technical grade 98% contains minor impurities but remains a separate chemically defined compound per Chapter 29 Note 1(a). It is classified under tariff item 2909.19.00 as an 'other' acyclic ether.
2909.19.00Triethylene Glycol Dimethyl Ether
Triethylene glycol dimethyl ether (triglyme) is an acyclic diether formed by methylating both hydroxyl groups of triethylene glycol. As a chemically defined acyclic ether of a polyhydric alcohol, it is classified under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified.
2909.19.00Trimethylolpropane Triethyl Ether
Trimethylolpropane triethyl ether is the triether derivative of the trihydric alcohol trimethylolpropane, with three ethyl ether linkages. As a chemically defined acyclic ether of a polyhydric alcohol, it falls under tariff item 2909.19.00, which covers other acyclic ethers not elsewhere specified.