Home Chemnovo Adsorption Indicators Congo Red Indicator For Microscopy
00844
Congo Red Indicator For Microscopy
C.I.No.22120 Congo red is used to stain microscopic preparates, especially as a cytoplasm and erythrocyte stain. Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y
CAS : 573-58-0
HS Code : 3204.14210
Molecular Formula : C32H22N6Na2O6S2
Molecular Weight : 696.65
MSDS
Physical Properties
Physical state at 20 °C
Solid |
Colour
Brownish red powder |
Odour
Odorless |
pH value
8-9.5 |
Solubility in water [% weight]
Soluble in water |
Specifications
Appearance
Brownish red powder |
Appearance of solution (1.0 g/L; water)
almost clear to slightly turbid , red solution |
Transition range at pH 3.0 to pH 5.2
Violet to orange red |
Loss on dryig (at 110°C)
Max 5.0% |
Sensitivity test
Passes test |
Safety Information and Hazard Symbols
Symbol: GHS08
Signal Word: Danger
Hazardous Statement: H350-H361d
Precaution Statement: P201-P281-P308 + P313
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