334687-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 334687-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,4,6,8 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 334687-31:
(8*3)+(7*3)+(6*4)+(5*6)+(4*8)+(3*7)+(2*3)+(1*1)=159
159 % 10 = 9
So 334687-31-9 is a valid CAS Registry Number.