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

Product Datasheet

Shelf Life : 60 Months

Sample COA COA

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

Specification

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