134744-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134744-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,7,4 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134744-71:
(8*1)+(7*3)+(6*4)+(5*7)+(4*4)+(3*4)+(2*7)+(1*1)=131
131 % 10 = 1
So 134744-71-1 is a valid CAS Registry Number.