Methylene Blue for Microscopy AR 25 Gram

PRODUCT CODE 305875
SYNONYMS [3,7-Bis(dimethylamino) phenazathionium
chloride]
C.I. NO. 52015
CASR NO. (61-73-4)
ATOMIC OR MOLECULAR FORMULA C16H18ClN3S.XH2O (X=2-3)
ATOMIC OR MOLECULAR WEIGHT 319.86 + Aq.
PROPERTIES Soluble in chloroform. Insoluble in ether.

PARAMETER LIMIT
Description A dark red/green coloured powder.
Solubility Soluble in water.
Dye Content (Titanometry; ondried substance) > 97.0%
Absorption maximum (in water) 663 - 667 nm
Absorption Ratio
(A λmax - 15 nm) /
(A λmax + 15 nm)
1.21 - 1.70
Absorptivity
(A1% / 1cm at λmax, in water)
2200 - 2750
Suitability for microscopy Passes test.

MAXIMUM LIMIT OF IMPURITIES
Loss on drying (at 1100C) 15%
Iron (Fe) 0.01%