0207 PYRONIN Y Grade:ULTRA PURE GRADE CAS Number: 92-32-0Synonym(s): Pyronin G Molecular Weight: 302.81Molecular Formula: C17H19N2OCl Storage Condition: ROOM TEMPERATURE-DYE ROOM Used in Unna-Pappenheim stain to demonstrate RNA (red) in contrast to DNA (green). Also used for bacteria staining. Color Index: 45005 Features Lambda max (0.1g/500mL then 1:100, Water) (nm) 543 – 553