137943-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137943-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,4 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137943-50:
(8*1)+(7*3)+(6*7)+(5*9)+(4*4)+(3*3)+(2*5)+(1*0)=151
151 % 10 = 1
So 137943-50-1 is a valid CAS Registry Number.