172615-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172615-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,6,1 and 5 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 172615-59:
(8*1)+(7*7)+(6*2)+(5*6)+(4*1)+(3*5)+(2*5)+(1*9)=137
137 % 10 = 7
So 172615-59-7 is a valid CAS Registry Number.