Welcome to the Biological Stain Commission
The primary function of the Biological Stain Commission, as a non-profit organization, is to test biological stains to ensure their high quality. The BSC Assay Laboratory has tested stains for over 100 years. The Commission promotes education in the use of biological stains with its Biotechnic and Histochemistry Journal and published books and provides a forum for presentation of novel uses of stains at its BSC Annual Meeting.
For Vendors and Users of Stains
- View BSC Certified Stains
- Submit Samples for Testing
- View Vendors
- Become A Vendor
For Current BSC Members
- Biotechnic & Histochemistry Online
- Services
- Conn's Biological Stains
- Educational Resources
Updates from the B.S.C.
2026 Update
We are pleased to announce that Luis Chiriboga, Elizabeth Chlipala, and Eduardo Rosa-Molinar Have been elected to the BSC Board of Trustees. Thanks again to all of those who participated in their election. More details will be provided in an upcoming Newsletter.
Bruce J. Cochrane, Ph. D.
Professor Emeritus of Biology
Miami University
President, Biological Stain Commission
Latest Newsletter
Plans for our joint meeting with the National Society for Histotechnology on Septmeber 26 in San Antonio Texas are nearly final, and registration is now open. We will have a morning sessions consisting of practical talks about staining and stain certification, followed by a “wet lab” session in the afternoon. Registration for the morning session […]
The 45th Annual Meeting of the Biological Stain Commission will be held in conjunction with the Annual Convention of the National Society for Histotechnology on Saturday, September 26 at the San Antonio Convention center in Texas. Our session will be focused on practical aspects of staining and will include both oral presentations and a hand-on […]
Latest Resources
News About Dyes and Staining
Azure B BSC Certification requirement change
As of March 3rd of 2025, the BSC Assay laboratory changed the BSC Certification requirements for Azure B. Test Current Requirement Old Requirement UV-Vis 645-649 nm 1.02-1.18 R ratio Quantitation Minimum 80% (Updated from a Minimum 89%) HPLC Thiazine Components Azure B Minimum 70% ( Updated from a “Majority of[..]
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Benefits of Being a Member
Being a member offers numerous advantages. You gain exclusive access to resources that enhance your skills and knowledge.
1. Exclusive access to premium content and resources.
2. Networking opportunities with industry professionals.
3. Discounts on events and workshops.
4. Personalized support and guidance from experts..
