201930-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201930-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,9,3 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 201930-16:
(8*2)+(7*0)+(6*1)+(5*9)+(4*3)+(3*0)+(2*1)+(1*6)=87
87 % 10 = 7
So 201930-16-7 is a valid CAS Registry Number.