1283639-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1283639-04-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,6,3 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1283639-04:
(9*1)+(8*2)+(7*8)+(6*3)+(5*6)+(4*3)+(3*9)+(2*0)+(1*4)=172
172 % 10 = 2
So 1283639-04-2 is a valid CAS Registry Number.