Otto Chemie Pvt. Ltd.

Phone : +91-22-2207 0099
Email : info@ottokemi.com, sales@ottokemi.com

Product Details

Congo red, indicator

Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y

C 2465

for microscopy

C32H22N6Na2O6S2

32041421

18%

573-58-0

696.65

Bottle / Drum

C 2465 (OTTO) Congo red, indicator Cas 573-58-0 - used with litmus paper in a simple parlor trick: add a drop or two of Congo red to both an acid solution and a base solution.

Congo red is the sodium salt of 3,3'-([1,1'-biphenyl]-4,4'-diyl)bis(4-aminonaphthalene-1-sulfonic acid) (formula: C32H22N6Na2O6S2; molecular weight: 696.66 g/mol). It is a secondary diazo dye. Congo red is water-soluble, yielding a red colloidal solution; its solubility is better in organic solvents such as ethanol.

Properties

Hematology & histology

Powder

Dye content, ≥85%

>360 °C(lit.)

22120

Safety Information

  • Exclamation Mark
  • Health Hazard

Hazard Codes T
Risk Statements 45-63
Safety Statements 53-45
WGK Germany 3

PackingsPrice (INR)
25 gm 383.00
100 gm 866.00
250 gm 2126.00
1 kg 6368.00
4 x 25 kg POR

DisclaimerThe above particulars do not release the customer from the obligation to carry out an inspection of goods received.
For laboratory use only. Not for drug, medical, household, or any other unauthorized application.
We assume no liability for misuse or unauthorized application of the product. Please test before use.