201807-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201807-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,0 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 201807-12:
(8*2)+(7*0)+(6*1)+(5*8)+(4*0)+(3*7)+(2*1)+(1*2)=87
87 % 10 = 7
So 201807-12-7 is a valid CAS Registry Number.