1-(2-Pyridylazo)-2-naphthol, 5G

SKU:
101036-5G
  • $181.00

    • Description

    1-(2-Pyridylazo)-2-naphthol

    indicator grade

    Synonym(s):
    PAN
    Empirical Formula (Hill Notation):
    C15H11N3O
    CAS Number:
    85-85-8
    Molecular Weight:
    249.27
    Beilstein:
    206390
    EC Number:
    201-637-9
    MDL number:
    MFCD00004071
    PubChem Substance ID:
    24846530
    NACRES:
    NA.47

    PROPERTIES

    grade

    indicator grade

    Quality Level

    200

    form

    solid

    technique(s)

    titration: suitable

    color

    green to red, upon chelation with metal
    orange-red, as an amorphous solid
    yellow, when dissolved in organic solvent

    mp

    138-141 °C (lit.)

    λmax

    462 nm

    SMILES string

    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+

    Inchi Key

    LLYOXZQVOKALCD-ISLYRVAYSA-N

    General description

    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]

    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.

    SAFETY INFORMATION

    Storage Class Code

    13 - Non Combustible Solids

    WGK

    WGK 3

    Flash Point(F)

    Not applicable

    Flash Point(C)

    Not applicable

    Personal Protective Equipment

    dust mask type N95 (US), Eyeshields, Gloves