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Merck
CN

110396

Chromotrope 2B

Synonym(s):

2-(4-Nitrophenylazo)chromotropic acid disodium salt, Acid Red 176

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About This Item

Empirical Formula (Hill Notation):
C16H9N3Na2O10S2
CAS Number:
548-80-1
Molecular Weight:
513.37
UNSPSC Code:
12352200
EC Number:
208-959-9
Beilstein/REAXYS Number:
4109733
Colour Index Number:
16575
MDL number:
MFCD00003951

Key Documents

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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

For the determination of boric acid, borates, germanium, cobalt, nickel, copper and rare earth metals.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
01203MM

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