form
solid
Quality Segment
bulk density
900‑1000 kg/m3
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
2-30°C
General description
The dry dye Orcein for microscopy Certistain® is used for the preparation of a staining solution for staining of elastic fibers. It is also used for sex chromatin staining, nuclear staining and demonstration of hepatic inclusions, especially of hepatitis B antigen. As a CERTISTAIN® dye it is chemically quality-certified according to highest standards and strict specifications.
Application
for microscopy Certistain®
Analysis Note
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ max (NaOH 0.01 mol/l): 575 - 580 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.001 %; Sodium hydroxide solution 0.01 mol/l): 270 - 330
TLC-Test: passes test
Loss on drying (110 °C): ≤ 7 %
Suitability for microscopy: passes test
Absorption maximum λ max (NaOH 0.01 mol/l): 575 - 580 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.001 %; Sodium hydroxide solution 0.01 mol/l): 270 - 330
TLC-Test: passes test
Loss on drying (110 °C): ≤ 7 %
Suitability for microscopy: passes test
Legal Information
CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
wgk
WGK 3
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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