推荐：Alizarin red S mono sodiumsalt (C.I. 58005)

别名:Alizarin red S mono sodiumsalt (C.I. 58005)

Empirical Formula (Hill Notation):C14H7NaO7S

CAS号:130-22-3

分子量:342.26

MDL编号:MFCD00013049

EC索引号:204-981-8

属性
缺失
≤10% loss on drying, 110°C

质量水平
200

visual transition interval
4.3-6.3, yellow to pink
9.4-12.0, brown-orange to violet

Amax
418-424 nm (buffer pH 4.3
buffer pH 4.3
1 buffer pH 4.3)
444-450 nm (buffer pH 9.4)
510-517 nm (buffer pH 6.3)
554-558 nm (buffer pH 12.0)

储存温度
2-30°C

InChI
1S/C14H8O7S.Na/c15-11-6-3-1-2-4-7(6)12(16)10-8(11)5-9(22(19,20)21)13(17)14(10)18;/h1-5,17-18H,(H,19,20,21);/q;+1/p-1

InChI key
HFVAFDPGUJEFBQ-UHFFFAOYSA-M

说明
一般描述
for analysis and indicator
分析说明
Identity (UV/VIS-Spectrum): passes test
1st transition range: pH 4.3 - pH 6.3 Lightly yellow - pink
2nd transition range: pH 9.4 - pH 12.0 Brown orange - violet
Absorption maximum λ 1 (buffer pH?4.3): 418 - 424 nm
Absorption maximum λ 2 (buffer pH?6.3): 510 - 517 nm
Absorption maximum λ 3 (buffer pH?9.4): 444 - 450 nm
Absorption maximum λ 4 (buffer pH?12.0): 554 - 558 nm
Spec. Absorptivity A 1%/1cm (λ1max; 0.01?g/l; buffer pH?4.3; calc. on dried substance): 135 - 180
Spec. Absorptivity A 1%/1cm (λ2max; 0.01?g/l; buffer pH?6.3; calc. on dried substance): 145 - 210
Spec. Absorptivity A 1%/1cm (λ3max; 0.01?g/l; buffer pH?9.4; calc. on dried substance): 170 - 230
Spec. Absorptivity A 1%/1cm (λ4max; 0.01?g/l; buffer pH?12.0; calc. on dried substance): 340 - 520
Loss on drying (110?°C): ≤ 10 %

安全信息
储存分类代码
11 - Combustible Solids

WGK
WGK 3

闪点(°F)
Not applicable

闪点(°C)
Not applicable