1583285-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1583285-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,3,2,8 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1583285-91:
(9*1)+(8*5)+(7*8)+(6*3)+(5*2)+(4*8)+(3*5)+(2*9)+(1*1)=199
199 % 10 = 9
So 1583285-91-9 is a valid CAS Registry Number.