77037-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77037-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,3 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77037-53:
(7*7)+(6*7)+(5*0)+(4*3)+(3*7)+(2*5)+(1*3)=137
137 % 10 = 7
So 77037-53-7 is a valid CAS Registry Number.