EOSIN BLUE

EOSIN BLUE For Microscopy

C.I.No.45400 It is used for plasma staining, vital staining & staining Negri bodies in nerve tissue preparation.
4',5'-Dibromo-2',7'-dinitrofluorescein disodium salt, Acid Red 91, Eosin Scarlet, Eosin bluish, Saffrosine

Article No.

03640

Grade

For Microscopy

Purity

85% dye content

CAS No.

548-24-3

Molecular Formula

C₂₀H₆Br₂N₂Na₂O₉

Molecular Weight

624.09

H.S. Code

3204.9000

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Physical state at 20 °C

Solid

Colour

Black powder

Appearance	Brown to dark green powder
Dye content (by spectrophotometry)	Min 85%
Absorptivity (A 1%/1cm; at λmax; in water)	Min 800
Solubility (0.1% in water)	Clear solution
Absorption maxima in water	517 - 520 nm
Loss on drying (at 110°C)	Max 8%
Suitability (for microscopy)	Passes test