1620098-37-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620098-37-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,0,9 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1620098-37:
(9*1)+(8*6)+(7*2)+(6*0)+(5*0)+(4*9)+(3*8)+(2*3)+(1*7)=144
144 % 10 = 4
So 1620098-37-4 is a valid CAS Registry Number.