670230-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670230-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,3 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 670230-71:
(8*6)+(7*7)+(6*0)+(5*2)+(4*3)+(3*0)+(2*7)+(1*1)=134
134 % 10 = 4
So 670230-71-4 is a valid CAS Registry Number.