Import 3, 3'-Dichlorobenzidine — Buy in Bulk from Supplier in China

3, 3'-dichlorobenzidine from Gao Chem is an aromatic diamine intermediate with the molecular formula C12H10Cl2N2, supplied as a white to greyish-white crystalline powder with a melting point near 150°C. The compound demonstrates solubility in ethyl alcohol, acids, and common organic solvents, behaviour consistent with its polar aromatic structure and amine functional groups. Gao Chem, based in Gaoyou, Jiangsu province, lists this material for industrial dye and pigment manufacturing applications.

In commercial practice, 3, 3'-dichlorobenzidine serves as a diazo component for azo pigment synthesis, with the chlorine substituents at the 3 and 3' positions modifying coupling behaviour and final colour properties. Typical industrial grades range from technical to purified specifications, with purity levels adjusted to downstream requirements for pigment strength, migration resistance, and regulatory compliance. The material is classified under CAS 91-94-1 and requires handling precautions appropriate to aromatic amine intermediates, including controlled temperature storage and dust containment.

Primary buyers include pigment manufacturers, specialty chemical formulators, and dye intermediate traders serving coatings, plastics, and textile colouration markets. Importers should confirm Gao Chem's current purity specification, available packaging formats (typically 25 kg drums or bulk as standard for this class of intermediate), and whether the batch is accompanied by a certificate of analysis. The supplier's response rate and verification status are not stated in the listing, so direct technical enquiry is advisable before sample or trial order commitment.

Gao Chem operates from Gaoyou, postal code 225613, in Jiangsu province, China. The supplier is classified at harbour trust tier with imported supplier tier status, indicating profile data sourced from import records rather than direct platform engagement. The response rate is listed at 0.00% with zero average response hours, which suggests no active communication history through the sourcing channel. Buyers should treat_sections收到 direct contact details and response commitments before relying on this listing for time-sensitive procurement.

The listing does not disclose manufacturing scope, other product lines, quality management certifications, or export experience beyond the address and product offer. No employee count, revenue figure, year of establishment, or named client references are provided. This absence of detail is common for harbour-tier profiles, but it places the burden of supplier verification entirely on the prospective buyer. Recommended due diligence includes requesting a current business licence, ISO certification status, and batch-specific analytical data before committing to commercial terms.