Technical datasheet

AT- B551

Supplied byKeeneyes Industrial- Last Updated on Nov 14, 2025

Mixture of 4, 4’-thiobis-(6-tert-butyl-3-methylphenol) and calcium bis (0-ethyl-3, 5-di-t-butyl-4-hydroxyphosphonate). AT- B551 by Keeneyes Industrial is derived from phenol (carbolic acid) and phosphonic acids (organophosphorus compounds). AT- B551 by Keeneyes Industrial is used as a raw material for synthetic resins.
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