307546-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 307546-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,7,5,4 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 307546-70:
(8*3)+(7*0)+(6*7)+(5*5)+(4*4)+(3*6)+(2*7)+(1*0)=139
139 % 10 = 9
So 307546-70-9 is a valid CAS Registry Number.