Vendors List

The following vendors are currently submitting samples of stains for Certification by the Biological Stain Commission.

Company Address
Abbey Color and Chemical 400 East Tioga St, Philadelphia, PA 19134, USA
Anatech Ltd 1020 Harts Lake Rd, Battle Creek, MI 49037, USA
APG Bioextracts Apartado Postal 12, Campeche,Campeche, 24000, Mexico
Astral Diagnostics 1224 Forest Parkway, West Deptford, NJ 08066, USA
Avantor Performance Materials Inc.  PO Box 800, Paris, KY 40362-0800, USA
Constitution Medical, Inc. 186 Lincoln Street, Boston, MA 02111, USA
Dudley Chemical Corporation 125 Kenyon Drive, Lakewood, NJ 08701, USA
Electron Microscopy Sciences 1560 Industry Road, Hatfield PA, 19440, USA
Fisher Scientific, Chemical Division 1 Reagent Lane, Fair Lawn, NJ 07410, USA
Millipore Sigma Company (formerly Aldrich), Quality Control Dept. 6000 N. Teutonia Ave, Milwaukee, WI 53233, USA
Millipore Sigma Company (formerly Sigma) 3500 DeKalb St, St Louis, MO 63118, USA
Polysciences Inc. 400 Valley Rd, Warrington, PA 18976, USA


The following companies currently supply stains Certified by the Biological Stain Commission as a subsidiary from another company.

  • Cole-Palmer as a subsidiary from Fisher.

A note on the use of the word “Certified”. 

Some vendors of dyes use the term “Certified” when in fact the dyes were not tested and certified by the Biological Stain Commission. Please be aware that such dyes may or may not be suitable for biological staining, and the word ‘Certified’ is in no way is connected to the Biological Stain Commission or its certification process. Some products that have not been tested and approved by the BSC are claimed by their vendors to “meet the standards of the Biological Stain Commission”.  These such products will not have the “BSC Certification label”, as these labels are issued directly from the Biological Stain Commission to only the vendors that have had their products tested.

When purchasing dyes for biological use, specify that they must be “Certified by the Biological Stain Commission”.  Caveat emptor!  Every bottle containing dye powder from a batch certified by the BSC has a distinctive label, supplied by the Commission, with numbers that identify the batch and the test results, and allow tracing of materials sold among companies.  Click here for more about recognizing genuine BSC-certified stains.