Naphthol Green B

Naphthol Green B[1]
Structural formula of Naphthol Green B
Ball-and-stick model of the Naphthol Green B molecule, sodium salt
Names
IUPAC name
trisodium; iron(3+); 5-nitroso-6-oxidonaphthalene-2-sulfonate
Other names
Acid Green 1; C.I. 10020
Identifiers
19381-50-1 YesY
3D model (Jmol) Interactive image
ChEBI CHEBI:87073 N
ECHA InfoCard 100.039.085
PubChem 6915910
Properties
C30H15FeN3Na3O15S3
Molar mass 878.45 g·mol−1
Hazards
S-phrases S22 S24/25
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Naphthol Green B is a green nitroso dye.

Chemistry

Naphthol Green B is the sodium salt of Naphthol Green Y (C.I. 10005). Its absorption maximum is 714 nm in water.[2] It is water-soluble.

Applications

Naphthol Green B is used in histology to stain collagen.[3] Moreover, it is used for polychrome stains with animal tissue. For industry purposes Naphthol Green B is used for staining wool, nylon, paper, anoxidized aluminium and soap.[2]

References

  1. Naphthol Green B at Sigma-Aldrich
  2. 1 2 Horobin, RW. und Kiernan, JA. (2002): Conn's Biological Stains: A Handbook of Dyes, Stains and Fluorochromes for Use in Biology and Medicine. BIOS Scientific Publ., 10th edition; ISBN 1-85996-099-5; page 101 and 102
  3. Histological and Histochemical Methods: Theory and Practice, 4th edition, J. A. Kiernan
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