QUINALDINE RED INDICATOR Indicator grade

2-(4-Dimethylaminostyryl)-1-ethylquinolinium iodide

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Article No.
05529
Grade
Indicator grade
Purity
CAS No.
117-92-0
Molecular Formula
C21H23IN2
Molecular Weight
430.32
H.S. Code
2933.3990
Shelf Life
60 Months
MSDS
 

 

Physical Properties

Physical state at 20 °C
Solid
Colour
Green powder
Flash point [°C]
93.3°C

Packings

  • 1CLVI00055

    1 g (00001)

  • 1GBA000015

    5 g (00005)

 

Specifications

Appearance Green coloured powder
Transition range (pH 1.4 - 3.2) Colorless to red
Absorption maxima 528 - 533 nm
Absorptivity (A 1%/1cm; at λmax; in glacial acetic acid; on dried substances) 1150 - 1250
Water (H2O) Max 5%
Suitability (as indicator) Passes test

Revision Date : 07-Jan-2014
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