Recommended Products
form
solid
bulk density
900‑1000 kg/m3
εmax
270-330 at 575-580 nm in 10 mM NaOH at 0.001%
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. As an IVD product and CE registered, it can be used hassle-free in diagnostics and laboratory accreditations. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.
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 Code
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’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service
