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Orcein for microscopy

Natural Red 28 , Stain for Histology

Product Size 25gm/100gm Grade For Microscopy
Purity CAS No. 1400-62-0
Molecular Formula C28H24N2O7 Molecular Weight 500.18
H.S. Code 32030010 Shelf Life 60 months
MSDS Certificate of Analysis (COAs)

Specifications

Appearance Dark Brown to Black purple colored powder
Solubility (0.1% in 0.1N NaOH) Clear purple solution
Absorption maxima (in 0.01N NaOH) 575 - 582 nm
Spec. Absorptivity A1%/1cm (? max. 0.001%, 0.01N NaOH) 270 - 330
Loss on drying Max. 7.0%
TLC Test Passes

Safety Information and Hazard Symbols
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