1639789-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1639789-02-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,9,7,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1639789-02:
(9*1)+(8*6)+(7*3)+(6*9)+(5*7)+(4*8)+(3*9)+(2*0)+(1*2)=228
228 % 10 = 8
So 1639789-02-8 is a valid CAS Registry Number.