134673-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134673-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,6,7 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134673-91:
(8*1)+(7*3)+(6*4)+(5*6)+(4*7)+(3*3)+(2*9)+(1*1)=139
139 % 10 = 9
So 134673-91-9 is a valid CAS Registry Number.