Zinpyr-1 25MG. Zinpyr-1, CAS number: 288574-78-7, Molecular Formula: C46H36Cl2N6O5, Molecular Weight: 823. 72, Purity: greater than or equal to 95% by HPCE, Appearance: Crystalline solid, Synonym: 4GC|, 5GC|-Bis[bis(2-pyridylmethyl)aminomethyl]-2GC|, 7GC|-dichlorofluorescein 4, Size: 25MG