• Biuret Reagent Solution, 125mL (4 oz.)
  • Biuret Reagent Solution, 125mL (4 oz.)
  • Biuret Reagent Solution, 125mL (4 oz.)
click on thumbnail to zoom
CAS: 108-19-0
U.S. DOT: Not Regulated.
Get the SDS: Download
Return Policy: See Below.
Discount: Buy at least 12, save 15%
   
Cat No. - NC-2083
Price: $12.95
Qty:
 

Description 

Biuret Reagent is an aqueous solution of potassium sodium tartrate treated with cupric sulfate and sodium hydroxide. In the presence of peptide bonds (protein), this blue solution will change color to pink-purple. Comes packed in HDPE squeeze bottle with PP flip top cap for dispensing by the drop.

The characteristic color of a positive biuret test.
By Ozone aurora/Philip Evans - Own work, CC BY-SA 3.0, Link

Protein Test - Biuret solution

  1. To a test tube, add 40 drops of liquid to be tested.
  2. If testing more than one liquid, label each test tube with a marker.
  3. Add 3 drops of Biuret reagent solution to each test tube. Shake gently to mix.
  4. Note any color change. Proteins will turn solution pink or purple.

RETURNS NOT ACCEPTED:

For chemical quality assurance our chemicals are "factory fresh" from qualified industrial chemical suppliers. To ensure top quality we CANNOT ACCEPT RETURNS on chemical purchases, even if the container is unopened.

INTERNATIONAL SHIPPING:

Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada.

CERTIFICATES OF ANALYSIS:

Certificates of Analysis for chemicals are available upon request. Use our request page at this link

Sample Header Text