Chromotrope 2B

Name: Chromotrope 2B
SKU: L11330.22

CAS: 548-80-1 | C16H9N3Na2O10S2 | 513.36 g/mol

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Catalog number L11330.22

also known as L11330-22

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Quantity:

100 g

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Chemical Identifiers

CAS548-80-1

IUPAC Namedisodium (3E)-5-hydroxy-3-[2-(4-nitrophenyl)hydrazin-1-ylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate

Molecular FormulaC16H9N3Na2O10S2

InChI KeyMQHFURHHKNKIRN-GVLVODDDSA-L

SMILES[Na+].[Na+].OC1=CC(=CC2=C1C(=O)C(=N/NC1=CC=C(C=C1)[N+]([O-])=O)C(=C2)S([O-])(=O)=O)S([O-])(=O)=O

Specifications

Specification Sheet

Appearance (Color)Dark green to dark brown to black

Specific Absorbance (E 1%/1cm)≥575 (at lambda max, on dried substance)

Loss on Drying≤18.0%

FormPowder

lambda-max (UV-Vis)512.0-518.0nm (c=0.1 in water)

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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