Advanced
Search
Chemicals
Lab Chemicals by Category
Advanced Search
COA Center
LOBA TLC Sprayer
MN Filter
Filtration
Chromatography
Rapid Tests
Water Analysis
Resources
Hazard Symbols
GHS Labeling
Precautionary Statements
Hazard Statements
Conversion Charts
Fractions
Particle Size
Periodic Table
MGT-7 Form
Company Profile
From Our Chairman
About Us
Vision
What We Offer
Certifications
Core Values
Our Commitment
Facility Tour
Manufacturing
Laboratory
Warehousing
Our Integrated Management System
Privacy Policy
Support
Catalogs & Price Lists
Product Brochures
Packings
Contact Us
Find a Dealer
Home
Lab Chemicals
Adsorption Indicators
CONGO RED INDICATOR
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 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
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
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
Packings
25 g
(00025)
100 g
(00100)
1000 g
(01000)
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