27130
铬变素 2B
suitable for microscopy
别名:
对硝基苯偶氮变色酸 二钠盐, 酸性红 176
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关于此项目
经验公式（希尔记法）:
C16H9N3Na2O10S2
化学文摘社编号:
分子量:
513.37
EC Number:
208-959-9
UNSPSC Code:
12171500
NACRES:
MA.02
PubChem Substance ID:
MDL number:
Colour Index Number:
16575
Beilstein/REAXYS Number:
4109733
form
powder or crystals
Quality Segment
mp
300 °C
solubility
water: 10 mg/mL
ε (extinction coefficient)
≥500 at 509-519 nm in water
suitability
suitable for microscopy
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
[Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccc(cc3)[N+]([O-])=O)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
InChI
1S/C16H11N3O10S2.2Na/c20-12-7-11(30(24,25)26)5-8-6-13(31(27,28)29)15(16(21)14(8)12)18-17-9-1-3-10(4-2-9)19(22)23;;/h1-7,20-21H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b18-17+;;
InChI key
AXUUHWJXDWBCSG-QIKYXUGXSA-L
Application
Chromotrope 2B along with Chromotrope 2R, was used to give a highly colored radical anion, during the spectrophotometric determination of cephalosporins (cephadroxil (I), cephalexin (II) and cephradine (III)) in pharmaceutical products. It may be immobilized on AG 1-X8 ion exchange resin, used in flame atomic absorption spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), done for the on-line preconcentration and determination of aluminium.
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves