641600-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641600-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,6,0 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 641600-34:
(8*6)+(7*4)+(6*1)+(5*6)+(4*0)+(3*0)+(2*3)+(1*4)=122
122 % 10 = 2
So 641600-34-2 is a valid CAS Registry Number.