1235891-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1235891-83-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,5,8,9 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1235891-83:
(9*1)+(8*2)+(7*3)+(6*5)+(5*8)+(4*9)+(3*1)+(2*8)+(1*3)=174
174 % 10 = 4
So 1235891-83-4 is a valid CAS Registry Number.