GRADE & PURITYBiological Stain?Biological stain grade — dyes characterized for staining cells and tissues. Use in histology and microscopy where staining consistency matters.
This compound belongs to the class of organic compounds known as pyranopyridines. These are polycyclic aromatic compounds containing a pyran ring fused to a pyridine ring.
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1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.
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Frequently Asked Questions
How should this product be stored?
Store at room temperature.
What does Biological Stain mean?
Biological Stain indicates that the product has been processed and tested for biological and biochemical applications. Specifications may include endotoxin limits, microbial controls, sterility, low DNase/RNase/protease activity, and verified biological activity where relevant.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 52372-39-1, the molecular formula is C23H19N5O, and the molecular weight is 381.44 g/mol. InChIKey FXFIDVQMNRVEGQ-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
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Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
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