1142188-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142188-69-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,1,8 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1142188-69:
(9*1)+(8*1)+(7*4)+(6*2)+(5*1)+(4*8)+(3*8)+(2*6)+(1*9)=139
139 % 10 = 9
So 1142188-69-9 is a valid CAS Registry Number.