Other
Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols. > Other: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2908.99
1,8-Dihydroxynaphthalene-3,6-disulfonic acid (H Acid)
1,8-Dihydroxynaphthalene-3,6-disulfonic acid, known as H Acid, is a key intermediate for azo dye synthesis. It is a separate chemically defined organic compound with two hydroxy groups and two sulfo groups. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.001-Naphthol-3,6-disulfonic acid
1-Naphthol-3,6-disulfonic acid, also known as H-acid, is a sulfonated derivative of naphthol with two sulfo groups. It is a separate chemically defined organic compound used as an intermediate in dye chemistry. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.001-Naphthol-4-sulfonic acid
1-Naphthol-4-sulfonic acid is a sulfonated derivative of 1-naphthol with a sulfo group at the 4-position. It is a separate chemically defined organic compound used as a dye intermediate. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.001-Naphthol-4-sulfonic acid monohydrate
1-Naphthol-4-sulfonic acid monohydrate is the hydrated form of 1-naphthol-4-sulfonic acid, stable for transport in dye production. It is a separate chemically defined organic compound with water of hydration. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols, as the water does not alter its chemical classification.
2908.99.002,5-Dihydroxybenzenesulfonic acid potassium salt
2,5-Dihydroxybenzenesulfonic acid potassium salt is a sulfonated derivative of dihydroxybenzene in its potassium salt form. It is a separate chemically defined organic compound with only sulfo groups attached to the phenolic structure. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.002-Naphthol-3,6-disulfonic acid disodium salt
2-Naphthol-3,6-disulfonic acid disodium salt, also known as R-acid salt, is a sulfonated naphthol derivative with two sulfo groups in its disodium salt form. It is a separate chemically defined organic compound used in dye synthesis. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.003,6-Dihydroxy-2,7-naphthalenedisulfonic acid
3,6-Dihydroxy-2,7-naphthalenedisulfonic acid is a naphthalene-based compound with two hydroxy groups and two sulfo groups. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.003,6-Dihydroxy-2,7-naphthalenedisulfonic acid sodium salt
3,6-Dihydroxy-2,7-naphthalenedisulfonic acid sodium salt is the sodium salt form of this specific naphthalenedisulfonic acid. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.004-Hydroxy-1-naphthalenesulfonic acid, 98% purity
4-Hydroxy-1-naphthalenesulfonic acid at 98% purity is a high-purity technical grade compound used as a pharmaceutical and dye intermediate. It is a separate chemically defined organic compound with only sulfo groups. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.004-Hydroxy-1-naphthalenesulfonic acid sodium salt
4-Hydroxy-1-naphthalenesulfonic acid sodium salt, also known as Laurent's acid salt, is a sulfonated naphthol derivative in its sodium salt form. It is a separate chemically defined organic compound with only sulfo groups. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.00Ammonium 1-Naphthol-4-sulfonate
Ammonium 1-naphthol-4-sulfonate is the ammonium salt of 4-hydroxy-1-naphthalenesulfonic acid, used in analytical chemistry. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.00Disodium 1,8-Dihydroxynaphthalene-3,6-disulfonate (H Salt)
Disodium 1,8-dihydroxynaphthalene-3,6-disulfonate, commonly called H Salt, is the disodium salt form of H Acid, used in water-soluble dye coupling. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.00Gamma Acid (1,8-Dihydroxynaphthalene-3,6-disulfonic acid isomer)
Gamma Acid, a positional isomer of H Acid also classified as 1,8-dihydroxynaphthalene-3,6-disulfonic acid, is used interchangeably in reactive dye manufacturing. It is a separate chemically defined organic compound with two hydroxy groups and two sulfo groups. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.00Potassium 1-Naphthol-4-sulfonate
Potassium 1-naphthol-4-sulfonate is the potassium salt form of 1-naphthol-4-sulfonic acid, soluble for use in textile dye manufacturing. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
2908.99.00Sodium 1-Naphthol-4-sulfonate
Sodium 1-naphthol-4-sulfonate is the sodium salt of 4-hydroxy-1-naphthalenesulfonic acid, used in azo dye coupling reactions. It is a separate chemically defined organic compound and a sulfonated derivative of phenol-alcohols. It qualifies under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.