Merck
All Photos(1)

1.07531

Supelco

1-(2-Pyridylazo)-2-naphthol (PAN)

metal indicator Reag. Ph Eur

Synonym(s):
PAN, 1-(2-Pyridylazo)-2-naphthol (PAN)
Empirical Formula (Hill Notation):
C15H11N3O
CAS Number:
Molecular Weight:
249.27
MDL number:
EC Index Number:
201-637-9

Quality Level

Agency

reag. Ph. Eur.

form

solid

color

brick red to orange-brown
clear to almost clear red-orange to brown-orange, 1.0g/L;ethanol

mp

136-141 °C

bulk density

190 kg/m3

λmax

461-465 nm in ethanol

storage temp.

2-30°C

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/h1-10H,(H,16,17)/b18-15-

InChI key

RAXUMGMWXZYADR-SDXDJHTJSA-N

Looking for similar products? Visit Product Comparison Guide

Analysis Note

Identity (UV/VIS-Spectrum): passes test
Appearance: brick-red to orange-brown fine powder,eventually cohesive
Appearance of solution (1.0 g/l; ethanol): Clear to almost clear, red-orange to brown-orange
Melting point: 136 - 141 °C
Absorption maximum λmax. (Ethanol): 461 - 465 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; Ethanol): 670 - 720
Suitability as indicator (for metal titration): passes test
Sensitivity test (Reag. Ph Eur): passes test

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service