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Indicators & stains

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

Article code
02930
CAS
573-58-0
Grade
For Microscopy
Category
Indicators & stains

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Properties

Article No.
02930
Grade
For Microscopy
CAS No.
573-58-0
Molecular Formula
C32H22N6Na2O6S2
Molecular Weight
696.65
H.S. Code
3204.1421
Shelf Life
60 Months

Product information

Article No.02930GradeFor Microscopy
PurityCAS No.573-58-0
Molecular FormulaC32H22N6Na2O6S2Molecular Weight696.65
H.S. Code3204.1421Shelf Life60 Months

Physical Properties

Physical state at 20 °CSolidColourBrownish red powder
OdourOdorlesspH value8-9.5
Solubility in water [% weight]Soluble in water

Specifications

AppearanceBrownish red powderAppearance of solution (1.0 g/L; water)almost clear to slightly turbid , red solution
Transition range at pH 3.0 to pH 5.2Violet to orange redLoss on drying (at 110°C)Max 5.0%
Sensitivity testPasses test

Packaging options

  • 25 g (00025)
  • 100 g (00100)
  • 1000 g (01000)

Details

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 MSDS DE EN FR KO PT ES TH TR COAs Packings 25 g (00025) 100 g (00100) 1000 g (01000) Print friendly version Article No. 02930 Grade For Microscopy Purity CAS No. 573-58-0 Molecular Formula C 3 2 H 2 2 N 6 Na 2 O 6 S 2 Molecular Weight 696.65 H.S. Code 3204.1421 Shelf Life 60 Months 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 drying (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 Revision Date: 28-Sep-2016 Home Lab Chemicals Adsorption Indicators CONGO RED INDICATOR

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