190909-62-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190909-62-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,9,0 and 9 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 190909-62:
(8*1)+(7*9)+(6*0)+(5*9)+(4*0)+(3*9)+(2*6)+(1*2)=157
157 % 10 = 7
So 190909-62-7 is a valid CAS Registry Number.