gentaur logo

      GENTAUR HEADQUARTERS  tel+32 1641 4407  tel+32 1650 9045 




france flag


Rue Lagrange, 9

75005 Paris, France

 01 43 25 01 50


germany flag


IME, Frockenbeckstrasse 6

52074 Aachen, Germany

 +32 1658 9045


italy flag


23015 Milano, Italy

 02 36 00 65 93


czech republic flag

Česká republika Praha


denmark flag




finland flag

Finland Helsset


greece flag

Ελλάς Αθήνα


ireland flag

Ireland Dublin


luxembourg flag



magyarország flag

Magyarország Budapest


netherlands flag

The Netherlands


norway flag

Norway Oslo


austria flag



sweden flag

Sverige Stockholm


switzerland flag

Schweiz Zürich



Northern America


canada flag

Canada Montreal


usa flag

US New York





japan flag

 +81 78 386 0860

Other Countries
0032 (0)16 41 44 07



Your supplier of life science research products

Coomassie Blue

*For Staining Proteins

Coomassie Instant Blue

Catalog number : ISB01L
Quantity: 1L
Availability: Yes
Price: 156$

Coomassie Blue Description

Coomassie Blue is the assembly of the both triphenylmethane [C19H16] colorings, which were used in the textile industry, but nowadays are getting in the biochemistry by dying protein stains with blue hue.
The more common Coomassie Blue dye is the R-250, which combination consists of blue with red shade and the lucidity of the dye gel.
The other Coomassie G-250, whose "G" stands for Green, has pH more than 0.
The difference of the pH and the molecule structure makes the variety of Coomassie Blue. From red to green and then to brilliant bright blue, just like the rainbow.
Roughly said, Coomassie R-250 is more responsive, while G-250 is more comfortable to be used.

Coomassie Blue R-250 structure Coomassie Blue R-250 structure
Coomassie Blue G-250 structure Coomassie Blue G-250 structure

InstantBlue is the newer and better version of the Coomassie Blue stain. With it's fantastic formula, containing zero methanol, proteins can be dyed in just minutes, without the need of washing, fixing or destaining.

Coomassie Instant Blue Contents

1L package, containing Coomassie dye, ethanol, phosphoricid acid and solubilizing agents in water. (Caution: Phosphoric acid is a corrosive liquid.)

Buy Coomassie Instant Blue

Price: 156$(-15%)

Fields marked with * are required!

Your name:*

Your e-mail:*

Billing address:*

Product's Catalog Number:


Your message:

Coomassie Q&A

Can Coomassie Blue Stain DNA?

No, Coomassie Blue can't stain DNA.
For staining DNA use Ethidium Bromide.

Can Coomassie Stain be reused?

No, Coomassie Stain can't be reused.

Can you restain Coomassie gel?

No, once you stain Coomassie gel,
there is no going back.

What can Coomassie Blue be used for?

Our short article about What Can
Coomassie Blue Be Used For?

Coomassie Specifications

Chemical Formula: C45H44N3NaO7S2
Molar Mass: ~826g/mol
Physical state: Solid
Absorption Maximum: 595 nm

Contact information:

Delivery address


Voortstraat 49

B - 1910  Kampenhout



+32 16 58 90 45

Fax :
+32 16 50 90 45

Delivery address

General Information: General information Mail
Sales: Sales Mail
Customer Support: Customer Support Mail
Webmaster's Mail

Clonagen Logo
Antibody-Antibodies Logo


Copyright © 2018 Gentaur