Import Bisphenol S — Buy in Bulk from Supplier in China

Bisphenol S is a white crystalline organic compound used primarily as a monomer in the production of polysulfone, polyether sulfone, and certain epoxy resins. The listing confirms it is supplied in bulk form with a purity level suitable for industrial polymerisation, though exact assay percentages are not specified. It is noted for compatibility with thermal paper color development systems and exhibits thermal stability consistent with high-temperature processing requirements.

This compound contains two phenolic hydroxyl groups and a central sulfone group, which imparts higher acidity than bisphenol A and reduces endocrine activity concerns. It is typically available in flake or powder form, with particle size distribution tailored for melt-processing applications. Industry standards for such compounds often require moisture content below 0.5% and foreign matter under 0.1%, though these are not confirmed by the supplier. The material is handled under standard organic chemical storage conditions, avoiding moisture and elevated temperatures.

Buyers in the electronics, automotive, and packaging sectors use Bisphenol S to manufacture heat-resistant polymers and high-performance films. The supplier offers bulk packaging, likely in 25kg bags or drums, and supports FOB and CIF shipping terms. Minimum order quantities are not stated and must be confirmed directly. Buyers should verify the material’s suitability for food-contact or medical applications through independent testing, as no certification data is provided.

Aolunda is listed as an imported supplier based in Yixing, Jiangsu, China. The profile indicates a harbor trust tier but provides no verified company registration, production capacity, or laboratory testing capabilities. There is no information on years in operation, workforce size, or client references. The supplier's response rate and average reply time are zero, suggesting limited buyer communication infrastructure.

The listing does not confirm whether Aolunda manufactures Bisphenol S or acts as a trader. No certifications, quality control protocols, or production facilities are referenced. Buyers should treat this as a trading entity without public-facing operational details. Due diligence through third-party inspection or sample testing is strongly advised before placing orders.