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Product Name

 NEW METHYLENE BLUE (FOR MICROCSCOPY) (C.I.NO. 52030)

Article No

 N0142600025

CAS No

 6586-05-6

Molecular Formula

 C18H22ClN3S·0.5ZnCl2

Molecular Weight

 416.05

Specifications

Appearance:

 Dark brown to purple crystalline powder

Identity (IR):

 Conforms to structure

Dye content:

 Min 90.0%

Absorption maxima #*4*#max3 (0.005 g/L in water):

 284 to 290 nm

Absorption maxima #*4*#max1 (0.005 g/L in water):

 628 to 634 nm

Absorption maxima #*4*#max2 (0.005 g/L in water):

 588 to 594 nm

Absorption maxima #*4*#max4 (0.005 g/L in water):

 242 to 248 nm

Extinction coefficient at #*4*#max1:

 Min 44000

Extinction coefficient at #*4*#max2:

 Min 36000

Extinction coefficient at #*4*#max3:

 Min 28000

Extinction coefficient at #*4*#max4:

 Min 16000