1135689-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1135689-18-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,5,6,8 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1135689-18:
(9*1)+(8*1)+(7*3)+(6*5)+(5*6)+(4*8)+(3*9)+(2*1)+(1*8)=167
167 % 10 = 7
So 1135689-18-7 is a valid CAS Registry Number.