1134721-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1134721-18-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,4,7,2 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1134721-18:
(9*1)+(8*1)+(7*3)+(6*4)+(5*7)+(4*2)+(3*1)+(2*1)+(1*8)=118
118 % 10 = 8
So 1134721-18-8 is a valid CAS Registry Number.