337902-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 337902-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,9,0 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 337902-80:
(8*3)+(7*3)+(6*7)+(5*9)+(4*0)+(3*2)+(2*8)+(1*0)=154
154 % 10 = 4
So 337902-80-4 is a valid CAS Registry Number.