208398-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208398-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,3,9 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 208398-74:
(8*2)+(7*0)+(6*8)+(5*3)+(4*9)+(3*8)+(2*7)+(1*4)=157
157 % 10 = 7
So 208398-74-7 is a valid CAS Registry Number.