钙羧酸 

中文别名：

2-羟基-1-(2-羟基-4-磺基-1-萘基偶氮)-3-萘甲酸; 钙羧酸; 钙羧酸指示剂

英文名称：

3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid

英文别名：

Calconcarboxylic acid; 2-hydroxy-1(2-hydroxy-4-sulfo-1-*naphthylazo)3-na; 2,2-dihydroxy-4-sulpho-1,1-azonaphthalene-3-carboxylic acid; 3-Hydroxy-4-(2-hydroxy-4-sulpho-1-naphthylazo)-2-naphthalenecarboxylic acid~Patton and Reeders; 3-hydroxy-4-[2-(2-oxo-4-sulfonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylic acid; 3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylic acid; 3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylate

CAS号：

3737-95-9

EINECS号：

223-117-0

分子式：

C₂₁H₁₂N₂O₇S

分子量：

436.3953

InChI：

InChI=1/C21H14N2O7S/c24-16-10-17(31(28,29)30)13-7-3-4-8-14(13)18(16)22-23-19-12-6-2-1-5-11(12)9-15(20(19)25)21(26)27/h1-10,23,25H,(H,26,27)(H,28,29,30)/p-2

分子结构：

熔点：

300℃

水溶性：

slightly soluble 

用作测定钙的络合指示剂