211388-93-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211388-93-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,3,8 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 211388-93:
(8*2)+(7*1)+(6*1)+(5*3)+(4*8)+(3*8)+(2*9)+(1*3)=121
121 % 10 = 1
So 211388-93-1 is a valid CAS Registry Number.