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Martius yellow

Names
Preferred IUPAC name 2,4-Dinitronaphthalen-1-ol
Other names 2,4-Dinitronaphthol; Martinsgelb; C.I. 10315; Acid yellow 24
Identifiers
CAS Number	605-69-6
3D model (JSmol)	Interactive image
ChEBI	CHEBI:67128
ChemSpider	11309
ECHA InfoCard	100.009.176
EC Number	210-093-1
MeSH	C057508
PubChem CID	11802
UNII	5PQ80Y1K6H
CompTox Dashboard (EPA)	DTXSID7060544
InChI InChI=1S/C10H6N2O5/c13-10-7-4-2-1-3-6(7)8(11(14)15)5-9(10)12(16)17/h1-5,13H Key: FFRBMBIXVSCUFS-UHFFFAOYSA-N InChI=1/C10H6N2O5/c13-10-7-4-2-1-3-6(7)8(11(14)15)5-9(10)12(16)17/h1-5,13H Key: FFRBMBIXVSCUFS-UHFFFAOYAH
SMILES C1=CC=C2C(=C1)C(=CC(=C2O)※(=O)※)※(=O)※
Properties
Chemical formula	C10H6N2O5
Molar mass	234.167 g·mol
Appearance	brownish-yellow powder
Except where otherwise noted, data are given for materials in their standard state (at 25 °C ※, 100 kPa). N verify (what is  ?) Infobox references

Martius yellow is: an organic compound that once was used——to protect wool from moths. It is prepared by, "nitration of naphthol."

Martius yellow stains have been used——to stain erythrocytes yellow so that they contrast well with red fibrin in trichrome staining methods such as Lendrum's Picro Mallory. And Slidder's Martius, Scarlet and Blue (MSB). It can be, "combined with other small molecular weight yellow dyes to increase stain intensity."

References※

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