COA Center



BISMARCK BROWN (R) For Microscopy

C.I.No.21010-used in a modified Coomasie blue staining procedure.For Staining mucus in globlet cell of the intenstine or cartilage in the trachea or in embryonic tissue
Basic Brown 4


25 g (00025)

100 g (00100)

1000 g (01000)

1PB1200060 1PB1200200
Article No. 02000 Grade For Microscopy
Purity CAS No. 5421-66-9
Molecular Formula C21H24N8·2HCl Molecular Weight 461.39
H.S. Code 3212.9090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Dark brown powder
Odour Odorless Melting point/ Freezing point [°C] 222 °C
Solubility in water [% weight] Soluble in water


Appearance Brown, gray-brown to deep brown, grey-brown or black powder or crystals Absorption maxima (50% ethanol) 463 - 473 nm
Extinction (1%/1CM) (1) (UV) Min 250.0
Revision Date: 01-Dec-2021

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