1,3,7,9-tetraphenyl-5-oxo-5H-1,2,4-triazolo<3',4':5,1>imidazo<4,3-c>-1,2,4-triazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 78909-93-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,0 and 9 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 78909-93: (7*7)+(6*8)+(5*9)+(4*0)+(3*9)+(2*9)+(1*3)=190 190 % 10 = 0 So 78909-93-0 is a valid CAS Registry Number.