215929-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215929-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,9,2 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 215929-12:
(8*2)+(7*1)+(6*5)+(5*9)+(4*2)+(3*9)+(2*1)+(1*2)=137
137 % 10 = 7
So 215929-12-7 is a valid CAS Registry Number.