641592-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641592-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,5,9 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 641592-97:
(8*6)+(7*4)+(6*1)+(5*5)+(4*9)+(3*2)+(2*9)+(1*7)=174
174 % 10 = 4
So 641592-97-4 is a valid CAS Registry Number.