Chloroform (trichloromethane)
Halogenated derivatives of hydrocarbons. > Saturated chlorinated derivatives of acyclic hydrocarbons: > Chloroform (trichloromethane) > Chloroform (trichloromethane)
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2903.13.00
ACS Reagent Chloroform
ACS reagent grade chloroform (trichloromethane, CHCl3) is a pure, chemically defined organic compound stabilized with ethanol for laboratory analytical use. It falls under tariff item 2903.13.00 as a saturated chlorinated derivative of acyclic hydrocarbons, specifically chloroform, per Chapter 29 Note 1(a).
Chloroform for Histology
Histology-grade chloroform is pure trichloromethane used for tissue clearing and deparaffinization in pathology laboratories. It meets the criteria for a chemically defined organic compound under Chapter 29 Note 1(a) and is classified under tariff item 2903.13.00.
Chloroform Stabilized with Amylene
Chloroform stabilized with amylene (0.5-1%) is trichloromethane with a stabilizer added to prevent phosgene formation during transport and storage. Under Chapter 29 Note 1(f), such stabilizers are permitted, so it remains classified under tariff item 2903.13.00.
Industrial Extraction Grade Chloroform
Industrial extraction grade chloroform is bulk technical trichloromethane used in pesticide and alkaloid extractions. As a pure chemically defined compound, it qualifies under Chapter 29 Note 1(a) and is classified under tariff item 2903.13.00.
Pharmaceutical Grade Chloroform
Pharmaceutical grade chloroform is high-purity trichloromethane meeting USP standards, used as a solvent in drug manufacturing. It is a saturated chlorinated derivative of methane and falls under tariff item 2903.13.00 as a chemically defined organic compound.
Spectroscopy Grade Chloroform-d (Deuterated)
Spectroscopy grade chloroform-d (CDCl3) is deuterated trichloromethane, an isotopically substituted form of chloroform used in NMR spectroscopy. As a derivative of chloroform, it is classified under tariff item 2903.13.00, consistent with Chapter 29 provisions for isomers and derivatives.