307339-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 307339-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,7,3,3 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 307339-77:
(8*3)+(7*0)+(6*7)+(5*3)+(4*3)+(3*9)+(2*7)+(1*7)=141
141 % 10 = 1
So 307339-77-1 is a valid CAS Registry Number.