108839-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108839-02-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,8,3 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108839-02:
(8*1)+(7*0)+(6*8)+(5*8)+(4*3)+(3*9)+(2*0)+(1*2)=137
137 % 10 = 7
So 108839-02-7 is a valid CAS Registry Number.