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1-(2-Pyridylazo)-2-naphthol

SIAL/101036 - indicator grade

Synonym: PAN

CAS Number: 85-85-8
Empirical Formula (Hill Notation): C15H11N3O
Molecular Weight: 249.27
EC Number: 201-637-9
MDL Number: MFCD00004071
Linear Formula: C15H11N3O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-101036-5G 5 g
 $181.00
1/EA		 Add To Favorites
45-101036-25G 25 g
 $636.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 101036-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 101036-5G

 

λmax 462 nm
color green to red, upon chelation with metal
  orange-red, as an amorphous solid
  yellow, when dissolved in organic solvent
form solid
grade indicator grade
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
mp 138-141 °C (lit.)
Quality Level 200 
SMILES string Oc1ccc2ccccc2c1N=Nc3ccccn3
technique(s) titration: suitable
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.
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.
Packaging: 5, 25 g in glass bottle
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
mp 138-141 °C (lit.)
UNSPSC 12171500

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