101036

1-(2-Pyridylazo)-2-naphthol

indicator grade

• Synonyme(s) : PAN
• Formule empirique (notation de Hill): C₁₅H₁₁N₃O
• Numéro CAS: 85-85-8
• Poids moléculaire : 249.27
• Numéro Beilstein : 206390
• Numéro CE : 201-637-9
• Numéro MDL: MFCD00004071
• Code UNSPSC : 12171500
• ID de substance PubChem : 24846530
• Nomenclature NACRES : NA.47

Propriétés

• Qualité: indicator grade
• Niveau de qualité: 200
• Forme: solid
• Technique(s): titration: suitable
• Couleur: green to red, upon chelation with metal; orange-red, as an amorphous solid; yellow, when dissolved in organic solvent
• Pf: 138-141 °C ((280 - 286 °F) - lit); 138-141 °C (lit.)
• ε (coefficient d'extinction): ≥15000 at 462-468 nm in methanol at 0.01 g/L; >35,000 at 222-228 nm in methanol at 0.01 g/L; >9,000 at 300-306 nm in methanol at 0.01 g/L
• Adéquation: suitable for (Suitable For Use as an Indicator in EDTA Titrations)
• Chaîne SMILES: Oc1ccc2ccccc2c1\N=N\c3ccccn3
• InChI: 1S/C15H11N3O/c19-13-9-8-11-5-1-2-6-12(11)15(13)18-17-14-7-3-4-10-16-14/h1-10,19H/b18-17+
• Clé InChI: LLYOXZQVOKALCD-ISLYRVAYSA-N

Description

Description générale

1-(2-Pyridylazo)-2-naphthol (PAN) is an orange-colored dye. It can form chelates with metal ions, which makes it a valuable indicator in complexometric titrations.

Application

1-(2-Pyridylazo)-2-naphthol is commonly used as an acid-base indicator. It is also suitable as a spectrophotometric reagent, which can extract metal chelates into an organic solvent.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: dust mask type N95 (US), Eyeshields, Gloves