METHYLENE BLUE For Microscopy

C.I.No.52015 Methylene blue is used as a dye for a number of different staining procedures, such as Wright's stain and Jenner's stain.
3,7-bis(Dimethylamino)-phenothiazin-5-ium chloride, Basic Blue 9, Tetramethylthionine chloride

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Article No.
04645
Grade
For Microscopy
Purity
82%
CAS No.
61-73-4
Molecular Formula
C16H18CIN3SxH2O
Molecular Weight
319.859 (anhydrous basis)
H.S. Code
3204.1351
Shelf Life
60 Months
MSDS
 

 

Physical Properties

Physical state at 20 °C
Solid
Colour
Dark green
Odour
Odorless
Melting point/ Freezing point [°C]
190 °C
Vapour density
13
Solubility in water [% weight]
Soluble in water

Packings

  • 1PB1200060

    25 g (00025)

  • 1PB1200200

    100 g (00100)

  • 1000 g (01000)

 

Specifications

Appearance Dark blue, crystalline powder with a copper-coloured sheen, or green crystals with a bronze-coloured sheen
Dye content About 82%
Absorption maxima in 50% ethanol 660 - 665 nm
Specific absorptivity A1%/1 cm (λmax; 0.003 g/L; ethanol) 2250-2750
Loss on drying (at 105°C) 8.0 - 22.0%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H302
Precaution Statement: P264 - P270 - P301 + P312 + P330 - P501
Revision Date : 14-Aug-2020
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