1581683-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1581683-95-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,6,8 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1581683-95:
(9*1)+(8*5)+(7*8)+(6*1)+(5*6)+(4*8)+(3*3)+(2*9)+(1*5)=205
205 % 10 = 5
So 1581683-95-5 is a valid CAS Registry Number.