NEUTRAL RED INDICATOR
NEUTRAL RED INDICATOR AR
C.I.No.50040Suitable for microscopy and microbiology and supravital staining of living blood cells.
Short Name: NEUTRAL RED INDICATOR
Synonym: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Toluylene red, Basic Red 5
Basic Details
Article No.
LG3201
Grade
AR
Purity
60%
CAS No.
553-24-2
HS Code
3204.9000
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Dark green powder
Odour
Odorless
pH value
3.1
Melting point/ Freezing point [°C]
290 °C
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
Dark green powder
Dye content (by spectrophotometry)
Min 60%
Transition range (pH 6.8 - 8.0)
Violet Red - Yellow
Solubility (0.1% in 50% ethanol)
Clear solution
Absorption maxima (50% ethanol + 2 ml acetic acid)
539 - 544 nm
Absorptivity (A 1%/1cm; at λmax; in 50% ethanol + 2 ml acetic acid)
Min 900
Loss on drying (at 110°C)
Max 12%
Safety Information & Hazard Symbols