- Naphthol Green B
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Naphthol Green B[1] 
trisodium; iron(3+); 5-nitroso-6-oxidonaphthalene-2-sulfonateOther namesAcid Green 1; C.I. 10020Identifiers CAS number 19381-50-1 PubChem 6915910 Jmol-3D images Image 1 - C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Fe+3]
Properties Molecular formula C30H15FeN3Na3O15S3 Molar mass 878.46 g mol−1 Hazards S-phrases S22 S24/25 
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Naphthol Green B is a green nitroso dye.
Contents
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 can be solved in water, however not in ethanol. As an anion, it acts as acid dye.
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
- ^ Naphthol Green B at Sigma-Aldrich
- ^ a b 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
- ^ Histological and Histochemical Methods: Theory and Practice, 4th edition, J. A. Kiernan
External links
- Naphthol Green B at StainsFile
Categories:- Dyes
- Nitroso compounds
- Iron compounds
- Naphthalenesulfonates
- Sodium compounds
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