EOSIN Y, powder, 25 g, bot.


Valid Article

Former Code(s): SLASMISC003 SLASZNL0003
W01030103 - Cellular stains for microscopy
European Medical Device Nomenclature (EMDN) is the nomenclature of use by manufacturers when registering their medical devices in the EUDAMED database. EMDN is characterised by its alphanumeric structure that is established in a seven-level hierarchical tree.
Thermosensitive codes are defined for storage and transportation temperature requirements of the products.
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Eosin reagent stain is used for staining of intestinal parasites which can be detected by light microscopy


Acid red 87, 2', 4', 5', 7'- Tetrabromofluorescein, dissodium salt, eosin yellowish


Technical specifications

  • CAS n°: 17372-87-1
  • Formula: C20H6Br4Na2O5 or C20H8Br4O5
  • Eosin Y: pure or high purity, biological stain
  • Crystallised powder, brown red color, odorless
  • Dye content: min 87%
  • pH: between 7 and 10

Packaging & Labelling

Glass bottle of 25 g

Instructions for use

Follow manufacturers' instructions to prepare the solution.

Please consult the “Updated laboratory procedures, 2022” available online via the Laboratory working Group sharepoint page: Laboratory Procedures and Resources.


For offline access, contact your laboratory advisor.


  • Store in cool, dry and well ventilated place
  • Keep container tightly closed (moisture sensitive)

Waste management

Substance with hazardous characteristics. Please contact your watsan referent for advice on proper disposal.

Detailed hazard and precautionary information can be found in the safety data sheet (SDS).

Classification EC Regulation N° 1272/2008

  • Eye irritation: Category 2A, H319

Signal Word


H319Causes serious eye irritation
P280Wear protective gloves/protective clothing/eye protection/face protection
P305 + P351 + P338IF IN EYES: rinse cautiously with water for several minutes. If the victim wears contact lenses, remove them if possible. Keep rinsing

MSF requirements

To be used when staining for intestinal parasites.

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