Xylenol Blue CAS Registry Number: 125-31-5 二甲苯酚蓝
CAS Name: 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[2,5-dimethylphenol] S,S-dioxide
Additional Names: p-xylenolsulfonephthalein; 1,4-dimethyl-5-hydroxybenzenesulfonephthalein; a,4,4'-trihydroxy-2,5,2',5'-tetramethyltriphenylmethane-2''-sulfonic acid g-sultone
Percent Composition: C 67.30%, H 5.40%, O 19.49%, S 7.81%
📌 参考资料/链接：
Literature References: Prepd from o-sulfobenzoic acid dichloride or o-sulfobenzoic acid anhydride and p-xylenol in the presence of zinc chloride: Cohen, Biochem. J. 16, 31 (1922).
📄 详细内容
Properties: Brown crystals from alcohol.
Use: Indicator, used in 0.02% soln: pH 1.2 red, 2.8 yellow, 9.6 blue.
产品链接: 125-31-5››