123839-82-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123839-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,3 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 123839-82:
(8*1)+(7*2)+(6*3)+(5*8)+(4*3)+(3*9)+(2*8)+(1*2)=137
137 % 10 = 7
So 123839-82-7 is a valid CAS Registry Number.