1609191-10-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609191-10-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,1,9 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1609191-10:
(9*1)+(8*6)+(7*0)+(6*9)+(5*1)+(4*9)+(3*1)+(2*1)+(1*0)=157
157 % 10 = 7
So 1609191-10-7 is a valid CAS Registry Number.