137204-58-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137204-58-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,0 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137204-58:
(8*1)+(7*3)+(6*7)+(5*2)+(4*0)+(3*4)+(2*5)+(1*8)=111
111 % 10 = 1
So 137204-58-1 is a valid CAS Registry Number.