The PAS (periodic acid Schiff) reaction is one of the most frequently used chemical methods for histology. This Certistain® Pararosaniline (chloride) solid dye is used to prepare the Schiff’s reagent required for the PAS reaction, for the staining of mucopolysaccharides in histological tissue specimens. As 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.
EC index number
3204 13 00
Structure formula Image
Pararosaniline (chloride) (C.I. 42500) for microscopy Certistain®. CAS 569-61-9, molar mass 323.83 g/mol. MSDS and product information below.
268 - 270 °C decomposes
Safety Information according to GHS
H350: May cause cancer.
P201: Obtain special instructions before use. P308 + P313: IF exposed or concerned: Get medical advice/ attention.
6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK 3 highly water endangering
9 Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
Categories of danger
R 45 May cause cancer.
S 53-45 Avoid exposure - obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).