METANIL YELLOW DYE CONTENT 70% (C005B-050438)

Application

Metanil yellow has been used for staining of leukocyte granules. It is also used as a counterstain in microscopic sections.

Biochem/physiol Actions

Metanil yellow is an azo dye. It is used as a counterstain in PAS (periodic acid-Schiff)/iron-hematoxylin stained sections to increase contrast. Metanil yellow changes its color from red at pH 1.2 to yellow at pH 2.3.

Molecular Weight: 375.38. Empirical Formula: C₁₈H₁₄N₃NaO₃S. form: solid. Quality Level: 200. composition: Dye content, 70% . technique(s): titration: suitable. pH: 1.5-2.7, red to yellow. λ. _max: 414 nm. ε (extinction coefficient): ≥. 18500 at 415.0-419.0 . nm. application(s): diagnostic assay manufacturing
hematology
histology. storage temp.: room temp. SMILES string: [Na+].[O-]S(: O)(: O)c1cccc(c1)\N: N\c2ccc(Nc3ccccc3)cc2. InChI: 1S/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14. /h1-13,19H,(H,22,23,24). /q. +1/p-1/b21-20+. . InChI key: NYGZLYXAPMMJTE-ANVLNOONSA-M. Pictograms: GHS05. Signal Word: Danger. Hazard Statements: H318 - H412. Precautionary Statements: P273 - P280 - P305 + P351 + P338 - P501. Hazard Classifications: Aquatic Chronic 3 - Eye Dam. 1. Storage Class Code: 11 - Combustible Solids. WGK: WGK 2. Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, Gloves.