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
产品名称
铬变素 2B, suitable for microscopy
InChI key
AXUUHWJXDWBCSG-QIKYXUGXSA-L
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+;;
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
form
powder or crystals
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
Quality Level
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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
Spectrophotometric assay of cephalosporins in pharmaceutical products, using chromotrope 2B and chromotrope 2R.
Issa YM and Amin AS
Microchimica Acta, 124 (3-4), 203-209 (1996)
On-line preconcentration of aluminium with immobilized Chromotrope 2B for the determination by flame atomic absorption spectrometry and inductively coupled plasma mass spectrometry.
Martin-esteban A
Analytica Chimica Acta, 304 (1), 121-126 (1995)
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