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Product Name

 CRYSTAL VIOLET AR (FOR MICROSCOPY) (C. I. NO. 42555)

Article No

 C0079900025

CAS No

 548-62-9

Molecular Formula

 C25H30CIN3

Molecular Weight

 407.99

Specifications

Appearance:

 Dark green powder

Arsenic (As):

 Max 0.001%

Lead (Pb):

 Max 0.003%

Water (H2O):

 Max 7.5%

Assay:

 96 – 100.5%

Identifications:

 To pass A, B & C tests

Residue on ignition:

 Max 1.5%

Zinc (Zn):

 Passes test

Chromatographic purity (by HPLC):

 Passes test

Alcohol insoluble matter:

 Max 1%

Sensitivity as an indicator:

 Passes test

UV absorbance Ratio:

 0.98 - 1.90