Martius yellow

Martius yellow

Names
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 (Jmol)	Interactive image
ChEBI	CHEBI:67128
ChemSpider	11309
ECHA InfoCard	100.009.176
EC Number	210-093-1
MeSH	C057508
PubChem	11802
UNII	5PQ80Y1K6H
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)[N+](=O)[O-])[N+](=O)[O-]
Properties
Chemical formula	C10H6N2O5
Molar mass	234.17 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Martius yellow is a compound with formula C₁₀H₆N₂O₅. It is a dye.

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.