339561-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 339561-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,9,5,6 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 339561-18:
(8*3)+(7*3)+(6*9)+(5*5)+(4*6)+(3*1)+(2*1)+(1*8)=161
161 % 10 = 1
So 339561-18-1 is a valid CAS Registry Number.