137097-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137097-74-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,9 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137097-74:
(8*1)+(7*3)+(6*7)+(5*0)+(4*9)+(3*7)+(2*7)+(1*4)=146
146 % 10 = 6
So 137097-74-6 is a valid CAS Registry Number.