215959-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215959-72-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,9,5 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 215959-72:
(8*2)+(7*1)+(6*5)+(5*9)+(4*5)+(3*9)+(2*7)+(1*2)=161
161 % 10 = 1
So 215959-72-1 is a valid CAS Registry Number.