1142201-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142201-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,2,0 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1142201-91:
(9*1)+(8*1)+(7*4)+(6*2)+(5*2)+(4*0)+(3*1)+(2*9)+(1*1)=89
89 % 10 = 9
So 1142201-91-9 is a valid CAS Registry Number.