101036

1-(2-Pyridylazo)-2-naphthol

indicator grade

• Sinonimo/i: PAN
• Formula empirica (notazione di Hill): C₁₅H₁₁N₃O
• Numero CAS: 85-85-8
• Peso molecolare: 249.27
• Beilstein: 206390
• Numero CE: 201-637-9
• Numero MDL: MFCD00004071
• Codice UNSPSC: 12171500
• ID PubChem: 24846530
• NACRES: NA.47

Proprietà

• Grado: indicator grade
• Livello qualitativo: 200
• Stato: solid
• tecniche: titration: suitable
• Colore: green to red, upon chelation with metal; orange-red, as an amorphous solid; yellow, when dissolved in organic solvent
• Punto di fusione: 138-141 °C ((280 - 286 °F) - lit); 138-141 °C (lit.)
• ε (coefficiente d’estinzione): ≥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
• Compatibilità: suitable for (Suitable For Use as an Indicator in EDTA Titrations)
• Stringa SMILE: 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+; LLYOXZQVOKALCD-ISLYRVAYSA-N

Descrizione

Descrizione generale

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.[1][2]

Applicazioni

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.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: dust mask type N95 (US), Eyeshields, Gloves