1609941-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609941-98-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,9,4 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1609941-98:
(9*1)+(8*6)+(7*0)+(6*9)+(5*9)+(4*4)+(3*1)+(2*9)+(1*8)=201
201 % 10 = 1
So 1609941-98-1 is a valid CAS Registry Number.