137565-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137565-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,6 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137565-41:
(8*1)+(7*3)+(6*7)+(5*5)+(4*6)+(3*5)+(2*4)+(1*1)=144
144 % 10 = 4
So 137565-41-4 is a valid CAS Registry Number.