For B2B buyers in the chemical industry, a thorough understanding of product specifications is non-negotiable. This knowledge ensures that the materials purchased meet the exact requirements of their intended applications, preventing costly errors and ensuring product quality. Today, we focus on 4,4'-Diaminodicyclohexylmethane (CAS 1761-71-3), a vital chemical intermediate with specific characteristics that buyers need to be aware of.

Firstly, let's consider the purity. Typically, 4,4'-Diaminodicyclohexylmethane is specified with a minimum purity level, often cited as ≥97.0% (GC,T) or ≥98%. This high purity is critical for its performance in demanding applications like epoxy curing, polyamide synthesis, and as a chain extender in polyurethanes, where even minor impurities can affect the final polymer properties or reaction kinetics.

The physical form and properties are also important. While the provided information indicates it can appear as a yellowish white liquid or brown paste, with a melting point of 60-65°C and a boiling point around 330-331°C, buyers should confirm these details with their prospective suppliers. Density at 25°C is approximately 0.95 g/mL, and its water solubility is noted as insoluble. These parameters are essential for safe handling, storage, and process integration.

When looking to buy 4,4'-Diaminodicyclohexylmethane, prospective clients should always request a Certificate of Analysis (CoA) from the manufacturer or supplier. This document will detail the specific batch's properties and confirm it meets the agreed-upon specifications. Furthermore, understanding the CAS number (1761-71-3) and molecular formula (C13H26N2) is fundamental for accurate identification and regulatory compliance.

For manufacturers and distributors, partnering with reputable chemical suppliers in China can offer access to high-quality 4,4'-Diaminodicyclohexylmethane at competitive prices. Buyers are encouraged to inquire about various Incoterms (FOB, CFR, CIF) and payment types (T/T, L/C) to find the most suitable arrangement for their procurement needs. Thorough specification review and supplier due diligence are key to successful sourcing.