3,7-dimethyl-2,4,6,8-tetraoxo-1,2,3,4,6,7,8,9-octahydropyrido<2,3-d:6,5-d'>dipyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 78431-32-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,3 and 1 respectively; the second part has 2 digits, 3 and 2 respectively. Calculate Digit Verification of CAS Registry Number 78431-32: (7*7)+(6*8)+(5*4)+(4*3)+(3*1)+(2*3)+(1*2)=140 140 % 10 = 0 So 78431-32-0 is a valid CAS Registry Number.