77302-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77302-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,0 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77302-42:
(7*7)+(6*7)+(5*3)+(4*0)+(3*2)+(2*4)+(1*2)=122
122 % 10 = 2
So 77302-42-2 is a valid CAS Registry Number.