1235871-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1235871-28-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,5,8,7 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1235871-28:
(9*1)+(8*2)+(7*3)+(6*5)+(5*8)+(4*7)+(3*1)+(2*2)+(1*8)=159
159 % 10 = 9
So 1235871-28-9 is a valid CAS Registry Number.