2-Naphthalenecarboxylic acid, 4-((3-chloro-2-methyl-5-sulfophenyl)azo)-3-hydroxy-, strontium salt (1:1) 4-((3-Chloro-2-methyl-5-sulfophenyl)azo)-3-hydroxy-2-naphthalenecarboxylic acid, strontium salt (1:1) 67892-39-1 68189-27-5 EINECS 267-571-8 Strontium 4-((3-chloro-2-methyl-5-sulphonatophenyl)azo)-3-hydroxy-2-naphthoate (1:1)