1131569-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1131569-67-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,1,5,6 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1131569-67:
(9*1)+(8*1)+(7*3)+(6*1)+(5*5)+(4*6)+(3*9)+(2*6)+(1*7)=139
139 % 10 = 9
So 1131569-67-9 is a valid CAS Registry Number.