Antioxidant CA CAS NO.1843-03-4

Antioxidant CA (CAS 1843-03-4) is a hindered phenolic antioxidant with the systematic name 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane and molecular formula C46H62O3. This triphenolic compound functions as a primary antioxidant for polymer stabilization, operating through hydrogen donation to interrupt free-radical chain oxidation. The product from Guangzhou Chengshuai New Material Co., Ltd is supplied as an industrial-grade powder for rubber, plastics, and adhesive applications where thermal and oxidative degradation resistance are critical. Its sterically hindered phenolic structure, featuring three 2-methyl-4-hydroxy-5-tert-butylphenyl groups attached to a butane backbone, provides multi-site radical scavenging capability that outperforms single-phenol antioxidants in demanding processing environments.

The material is typically manufactured via condensation chemistry with controlled substitution patterns to ensure consistent molecular weight and purity. Standard commercial grades exhibit melting points in the 185-195 degrees Celsius range, with thermal decomposition temperatures above 300 degrees Celsius supporting processing stability in high-temperature polymer compounding. The tert-butyl and methyl substituents on each phenolic ring enhance compatibility with non-polar polymer matrices including natural rubber, SBR, NBR, EPDM, polypropylene, and polyethylene. Typical assay specifications require purity of 99.0 percent minimum, with controlled limits on residual solvents, ash content, and phenolic impurities. The powder form referenced in trade indicates a standard particle size distribution suitable for dry blending or masterbatch incorporation, though exact d50 values should be confirmed with the supplier.

Primary buyers include tire manufacturers, rubber compounding facilities, plastics processors, and adhesive formulators requiring long-term heat aging resistance. The antioxidant is typically incorporated at 0.1-1.5 phr in rubber formulations and 0.05-0.5 percent in plastic applications, depending on polymer type and service conditions. Guangzhou Chengshuai New Material Co., Ltd operates from Panyu District, Guangzhou, within Guangdong Province, a major Chinese chemical manufacturing hub with established logistics infrastructure for bulk chemical export. Buyers should confirm minimum order quantities, packaging specifications, and available certifications directly with the supplier, as the listing does not specify these terms. FOB or CIF shipping terms are common for this product category from Chinese ports, though exact Incoterms require supplier confirmation.

Guangzhou Chengshuai New Material Co., Ltd is based at No.10, Jiqingxiang, Shiyicun, Shilou Town, Panyu District, Guangzhou, 511447, Guangdong Province, China. The supplier operates under a harbor trust tier classification and currently shows a 0.00 response rate with zero average response hours, indicating limited or no recent engagement through the platform's inquiry system. The company specializes in chemical materials, with this listing focused specifically on antioxidant additives for polymer and rubber industries.

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