137272-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137272-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,7 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137272-75:
(8*1)+(7*3)+(6*7)+(5*2)+(4*7)+(3*2)+(2*7)+(1*5)=134
134 % 10 = 4
So 137272-75-4 is a valid CAS Registry Number.