Chapter 2927 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 29.27
1,1'-Azobisformamide (AZODICARBONAMIDE)
1,1'-Azobisformamide, also known as azodicarbonamide (ADCA), is a chemically defined azo compound used as a chemical foaming agent in plastics and rubber production. It decomposes thermally to release nitrogen gas.
2927.00.001,1'-Azobisformamide USP Grade
1,1'-Azobisformamide USP grade is a chemically defined azo compound meeting United States Pharmacopeia standards for purity and microbial limits. It is used as a reagent in organic synthesis and pharmaceutical intermediate production.
2927.00.001,3-Diphenyltriazene technical grade
1,3-Diphenyltriazene, also known as diazoaminobenzene, is a chemically defined diazo compound with a triazene (-NH-N=N-) functional group. It is used as an intermediate in azo dye synthesis and as a radical scavenger.
2927.00.004-Aminoazobenzene-2,4-disulfonic Acid Monosodium Salt (Dye Intermediate)
4-Aminoazobenzene-2,4-disulfonic acid monosodium salt is a chemically defined diazo compound with an azo (-N=N-) linkage and sulfonic acid groups. It is used as a dye intermediate in the manufacturing of azo dyes.
2927.00.00ADCA Foaming Agent Powder
ADCA foaming agent powder is high-purity 1,1'-azobisformamide designed for controlled gas release in polymer foam processing. It is used at 0.5-3% loading levels to create microcellular structures in profiles, sheets, and other products.
2927.00.00Azodicarbonamide Industrial Foaming Grade
Azodicarbonamide industrial foaming grade is optimized for uniform particle size (6-10 microns) and thermal stability in continuous extrusion foaming lines. It is used as a key ingredient for wallcoverings, flooring, and automotive seals.
2927.00.00Azodicarbonamide Technical Grade 99%
Azodicarbonamide technical grade 99% is a chemically defined azo compound with 99% purity, packaged in 25kg fiber drums. It is widely used in shoe sole production, thermal insulation boards, and synthetic leather manufacturing.
2927.00.00Benzotriyl Diazo Naphthalenesulfonate
Benzotriyl diazo naphthalenesulfonate is a complex diazo ester used in advanced photoinitiator formulations for 3D printing resins. It is a chemically defined diazo compound with a naphthalenesulfonic acid ester structure.
2927.00.00Diazoaminobenzene (1,3-Diphenyltriazene)
Diazoaminobenzene, also known as 1,3-diphenyltriazene, is a specific diazo compound with a triazene functional group. It is used as a reagent in organic synthesis and photochemical applications.
2927.00.00Diazoaminobenzene stabilized with 0.1% citric acid
Diazoaminobenzene stabilized with 0.1% citric acid is a diazo compound with a stabilizer added solely for preservation or transport. It is used in analytical chemistry standards and organic synthesis.
2927.00.00Monosodium 4-Aminoazobenzene-2,4-disulfonate
Monosodium 4-aminoazobenzene-2,4-disulfonate is a chemically defined diazo compound with an azo linkage and sulfonic acid groups. It is used as an intermediate in the synthesis of azo dyes.
2927.00.00p-Aminoazobenzene-2,4-disulfonic acid, 98% purity
p-Aminoazobenzene-2,4-disulfonic acid, 98% purity, is a chemically defined azo compound with sulfonic acid groups. It is used as a dye coupling component in the production of azo dyes.
2927.00.00p-Aminoazobenzenedisulfonic acid
p-Aminoazobenzenedisulfonic acid is a chemically defined diazo compound with an azo linkage and two sulfonic acid groups. It is used as a key intermediate in the synthesis of azo dyes.
2927.00.00Sodium Salt of 4-Aminoazobenzene Disulfonate (CAS 20592-48-5)
Sodium salt of 4-aminoazobenzene disulfonate (CAS 20592-48-5) is a chemically defined diazo compound with an azo linkage and sulfonic acid groups. It is used as a dye intermediate in the production of azo dyes.
2927.00.00Technical Grade 4-Aminoazobenzene-2,4-disulfonate Sodium
Technical grade 4-aminoazobenzene-2,4-disulfonate sodium is a monosodium salt of the named disulfonic acid azo compound, containing minor stabilizers. It is used as a dye intermediate in azo dye manufacturing.