640279-27-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 640279-27-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,7 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 640279-27:
(8*6)+(7*4)+(6*0)+(5*2)+(4*7)+(3*9)+(2*2)+(1*7)=152
152 % 10 = 2
So 640279-27-2 is a valid CAS Registry Number.