212139-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212139-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,1,3 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 212139-61:
(8*2)+(7*1)+(6*2)+(5*1)+(4*3)+(3*9)+(2*6)+(1*1)=92
92 % 10 = 2
So 212139-61-2 is a valid CAS Registry Number.