1581683-92-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1581683-92-2 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 1581683-92:
(9*1)+(8*5)+(7*8)+(6*1)+(5*6)+(4*8)+(3*3)+(2*9)+(1*2)=202
202 % 10 = 2
So 1581683-92-2 is a valid CAS Registry Number.