19170-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19170-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,7 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19170-61:
(7*1)+(6*9)+(5*1)+(4*7)+(3*0)+(2*6)+(1*1)=107
107 % 10 = 7
So 19170-61-7 is a valid CAS Registry Number.