202029

Metanilgelb

Dye content 70 %

• Synonym(e): 3-(4′-Anilinophenylazo)-1-benzolsulfonsäure Natriumsalz, Säuregelb 36
• Empirische Formel (Hill-System): C₁₈H₁₄N₃NaO₃S
• CAS-Nummer: 587-98-4
• Molekulargewicht: 375.38
• Farbindexnummer: 13065
• Beilstein: 3831568
• EG-Nummer: 209-608-2
• MDL-Nummer: MFCD00007486
• UNSPSC-Code: 12171500
• PubChem Substanz-ID: 24852034
• NACRES: NA.47

Eigenschaften

• Form: solid
• Zusammensetzung: Dye content, 70%
• Methode(n): titration: suitable
• pH-Wert: 1.5-2.7, red to yellow
• λmax: 414 nm
• ε (Extinktionskoeffizient): ≥18500 at 415.0-419.0 nm
• Anwendung(en): diagnostic assay manufacturing; hematology; histology
• Lagertemp.: 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+;
• InChIKey: NYGZLYXAPMMJTE-ANVLNOONSA-M

Beschreibung

Anwendung

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

Biochem./physiol. Wirkung

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.

Sicherheitshinweise

• Piktogramme: GHS05
• Signalwort: Danger
• H-Sätze: H318,H412
• P-Sätze: P273 - P280 - P305 + P351 + P338 - P501
• Gefahreneinstufungen: Aquatic Chronic 3 - Eye Dam. 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 2
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves