• 4,4,4-trifluoro-1-(4-methylphenyl)-1,3-butanedione cas 720-94-52021-12-16
• 4,4′-thiobis(6-tert-butyl-m-cresol) cas 96-69-52021-12-16
• 4,4′-sulfonyldiphenol cas 80-09-12021-12-16
• 4,5,6,7-tetrahydrotolyltriazole = add-3,h42021-12-15