推荐：Arsenazo III metal indicator

别名:Arsenazo III, 2,7-Bis(2-arsonophenylazo)-1,8-dihydroxynaphthaline-3,6-disulfonic acid
Empirical Formula (Hill Notation):C22H18As2N4O14S2

CAS号:1668-00-4

分子量:776.37

MDL编号:MFCD00036695

EC索引号:216-788-6

属性
质量水平
200

形式
solid

缺失
≤10% loss on drying, 110°C

pH值（酸碱度）
2.3 (20 °C, 10 g/L in H2O)

堆积密度
850 kg/m3

λmax
569-576 nm (buffer pH 10.0)

储存温度
2-30°C

InChI
1S/C22H18As2N4O14S2/c29-21-18-11(9-16(43(37,38)39)19(21)27-25-14-7-3-1-5-12(14)23(31,32)33)10-17(44(40,41)42)20(22(18)30)28-26-15-8-4-2-6-13(15)24(34,35)36/h1-10,29-30H,(H2,31,32,33)(H2,34,35,36)(H,37,38,39)(H,40,41,42)

InChI key
UQHVTNUJRKELCE-UHFFFAOYSA-N

说明
分析说明
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (buffer pH 10.0): 569 - 576 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.025?g/l; buffer pH?10.0; calculated on dried substance): 300 - 450
Loss on drying (110?°C): ≤ 10 %
Suitability as indicator: passes test