637300-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637300-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,0 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 637300-16:
(8*6)+(7*3)+(6*7)+(5*3)+(4*0)+(3*0)+(2*1)+(1*6)=134
134 % 10 = 4
So 637300-16-4 is a valid CAS Registry Number.