1609259-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609259-67-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,2,5 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1609259-67:
(9*1)+(8*6)+(7*0)+(6*9)+(5*2)+(4*5)+(3*9)+(2*6)+(1*7)=187
187 % 10 = 7
So 1609259-67-7 is a valid CAS Registry Number.