1211537-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1211537-20-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,1,5,3 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1211537-20:
(9*1)+(8*2)+(7*1)+(6*1)+(5*5)+(4*3)+(3*7)+(2*2)+(1*0)=100
100 % 10 = 0
So 1211537-20-0 is a valid CAS Registry Number.