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February Newsletter:
Chromis dyes - new fluorescent labels
Spectrum™ Peptides
Dye Selector

Chromis Dyes

 New Fluorescent labels

CRB is the exclusive distributor for Cyanagen's CHROMIS dyes.
The CHROMIS product line is a selection of the newest fluorescent labels available today. Dye structures were carefully chosen to provide top-notch brightness performances, improving bioanalytical assays to the highest level.

Eight different basic structures span the full working range of wavelength, starting from 400 nm up to 870 nm. Each fluorescent compound is available with many different reactive moieties while retaining the photophysical features of the parent dye. Furthermore, a completely new level of chemistry has been developed to provide the same fluorescent label with different charge values (anionic, cationic, zwitterionic and neutral).

Need to know more?

Contact us by visiting our website or email us for information on a the new range of CHROMIS dyes.

  Spectrum™ Peptides

Cambridge Research Biochemicals offers the full emission spectra of fluorescent labelled peptides: Spectrum™ Peptides.

Spectrum™ Peptides Logo


CRB has the most comprehensive range available of licenced and free-to-use activated fluorescent dyes for labelling peptides.


CRB brings twenty years of experience of labelling peptides with fluorescent dyes and will advise on the synthesis strategy for most efficient use of dye and hence cost-effectiveness.


CRB provides a dye selector tool and a technical support service to best match dye choice with intended application and excitation source.


CRB provides a dye selector tool and a technical support service to best match dye choice with intended application and excitation source.

Licenced dye range:

  • Chromis dyes from Cyanagen
  • Cy™ dyes from GE-Amersham Biosciences
  • Alexa Fluor ® dyes from Invitrogen-Molecular Probes
  • ATTO dyes from Atto-Tec
  • Black Hole Quenchers from Biosearch Technologies


CRB can now offer a custom dye design and synthesis option for development of dyes for specific projects which need to vary structure, reactivity or charge of dyes including new derivatives.


Leave it to the experts, contact CRB Discovery for all your fluorescent labelling needs be it peptide, protein, antibody or small molecule.

More about fluorescent peptides

Take a look at our Fluorescent Dyes section on our website to find out more.

Dye Selector   Dye Selector

Our dye selector will take you through a step by step process to help you choose the best dye for your application.

See for yourself

View our full range of products

Visit our website to view our full range of products, we offer products for the following:

Peptides PNA Fluorescent Dyes Immunological

Get in touch

Tel: +44 (0) 1642 567 180
Fax: +44 (0) 1642 567 181
Email: crbsales@crbdiscovery.com