Erythrosine B (C.I. 45430)

Erythrosin B (C.I. 45430)for microscopy Certistain^®, is a dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Erythrosin B staining solutions. As the dye belongs to the portfolio of Certistain^® dyes, it is chemically analyzed according to strict specifications before release and a high staining quality, with reliable staining results is guaranteed.

for microscopy Certistain^®

Dye content (gravimetrically): ≥ 80 %
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (water): 524 - 527 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; water): 930 - 1170
TLC-Test: passes test
Loss on drying (110 °C): ≤ 10 %
Suitability for microscopy: passes test

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany