1586781-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1586781-56-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,6,7,8 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1586781-56:
(9*1)+(8*5)+(7*8)+(6*6)+(5*7)+(4*8)+(3*1)+(2*5)+(1*6)=227
227 % 10 = 7
So 1586781-56-7 is a valid CAS Registry Number.