Orcein, for analysis

Name: Orcein, for analysis
SKU: B20294.03

Red dye used in microscopy as a mordant for the staining of flagella, as well as for detecting elastic tissue in sputum. | CAS: 1400-62-0 | C28H24N2O7 | 500.507 g/mol

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5 g

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Catalog number B20294.03

also known as B20294-03

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1 g

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Chemical Identifiers

CAS1400-62-0

IUPAC Name4,12-bis[(2,4-dihydroxy-6-methylphenyl)amino]-3,13-dimethyl-8-oxatricyclo[7.4.0.0²,⁷]trideca-1,3,6,9,12-pentaene-5,11-dione

Molecular FormulaC28H24N2O7

InChI KeyVPEASJIRGSVXBF-UHFFFAOYSA-N

SMILESCC1=CC(O)=CC(O)=C1NC1=C(C)C2=C3C(OC2=CC1=O)=CC(=O)C(NC1=C(C)C=C(O)C=C1O)=C3C

Specifications

Specification Sheet

Loss on Drying< 7.0% (110?C/const. wt.)

Color ChangepH <7.0: Red, pH >7.0 purple

lambda-max (UV-Vis)575-583nm (0.01mol/L NaOH)

Appearance (Color)Black to Brown

FormCrystals or Crystalline powder

It is a red dye used in microscopy as a mordant for the staining of flagella, as well as for detecting elastic tissue in sputum.

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.

RUO – Research Use Only