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Pyronin Y, ultra pure grade

Supplier: VWR Chemicals
Synonyms: 3,6-Bis(dimethylamino)xanthylium chloridePyronin YPyronine Y

Used in Unna-Pappenheim stain to demonstrate RNA (red) in contrast to DNA (green). Also used for bacteria staining.

  • Colour index: 45005

Formula: C₁₇H₁₉ClN₂O
MW: 302,8 g/mol
Melting Pt: 250 - 260 °C
Storage Temperature: Ambient
MDL Number: MFCD00011725
CAS Number: 92-32-0
EINECS: 202-147-8
UN: 0000
Merck Index: 12,08190
Specification Test Results
Lambda max (0.1 g/500 ml then 1:100, Water) 543 – 553 nm



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Pack type Pk VWR Catalog Number Quantity
Amber bottle 10 g 0207-10G
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