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Reactive Biureti
Reactive Biureti (Product Code: SCL378/089) is a biuret reagent used to detect proteins and peptides through a blue-to-violet colour change in school biology, food-test and biochemistry practicals. It is listed as a 250 ml bottle of analytical reagent grade with an MSDS, sized for teachers running food tests with whole classes. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a biology lab equipment supplier in India.
Specifications
| Parameter | Detail |
|---|---|
| Capacity | 250 ml |
| Grade | Analytical reagent |
| Safety document | MSDS supplied |
| Shelf life | Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. |
| Product code | SCL378/089 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Biuret Reagent Used For?
The biuret test is the standard classroom test for protein. Students add a few drops of the reagent to a sample such as egg white, milk or a soaked pulse extract; if protein is present, the blue solution turns violet or lilac within a few minutes, with no heating needed. Copper ions in the alkaline reagent bind to the peptide bonds that link amino acids, so the test responds to proteins and peptides rather than to single amino acids.
Run it alongside the iodine test for starch and Fehling’s or Benedict’s test for reducing sugars to complete a set of food tests. The reagent is alkaline and contains copper, so wear eye protection, wipe splashes promptly and collect used mixtures for disposal as described in the MSDS. Keep the bottle closed so the alkali does not absorb carbon dioxide from the air.
Supplier
Jain Scientific Equipments Private Limited, which does business as ScienceLab in Ambala, Haryana, sources Reactive Biureti and supplies it with the other food-test reagents and glassware a biology lab needs. More information about the company is on our company profile page.
Related Laboratory Equipment
A full food-test practical built around Reactive Biureti usually includes:
- Test Tube Stand (Wire Pattern) — holds the sample tubes during the test.
- Dropper — adds the reagent a few drops at a time.
- Potassium Iodine-Iodine Solution — the starch test in the same food-test set.
- Solution Fehling A — with Fehling B, the reducing sugar test.
- Pestle And Mortar — grinds solid foods into a testable extract.
Find more reagents and apparatus in our Laboratory Equipment category.
Frequently Asked Questions
What is Reactive Biureti?
Reactive Biureti (SCL378/089) is a biuret reagent, the solution used in the biuret test for proteins. When it is added to a sample containing protein, its blue colour changes to violet, which makes it a standard reagent for school and college food tests.
How is the biuret test done with Reactive Biureti?
Add a few drops of Reactive Biureti to the liquid sample in a test tube, shake gently and wait a few minutes. A violet or lilac colour indicates protein, while the mixture stays blue if protein is absent; no heating is required.
What size is the Reactive Biureti bottle?
Reactive Biureti is supplied in a 250 ml bottle of analytical reagent grade with an MSDS. Only a few drops are used per test, so tell us how many lab groups share the stock and we will suggest a sensible number of bottles.
Is Reactive Biureti safe for students to use?
Reactive Biureti can be used by students under supervision, but it is alkaline and contains copper salts, so it irritates skin and eyes. Goggles should be worn, spills wiped at once, and the MSDS supplied with the bottle followed for first aid and disposal.
What is the shelf life of Reactive Biureti?
The shelf life of Reactive Biureti depends on the chemical, its grade and storage conditions, so we do not state a fixed period. Ask us for the expiry date of the batch you are quoted, and keep the bottle tightly capped.
Who supplies Reactive Biureti?
Reactive Biureti is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India. The company sources food-test reagents and supplies them with glassware to schools, colleges, dealers and importers in India and international markets.
Request a Quote
Send an enquiry for Reactive Biureti through our contact page, or add it to the enquiry cart with the starch and sugar test reagents. Mention the number of bottles and your delivery address.
Last updated: 24 September 2026
