337975-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 337975-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,9,7 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 337975-20:
(8*3)+(7*3)+(6*7)+(5*9)+(4*7)+(3*5)+(2*2)+(1*0)=179
179 % 10 = 9
So 337975-20-9 is a valid CAS Registry Number.