134952-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134952-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,5 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134952-91:
(8*1)+(7*3)+(6*4)+(5*9)+(4*5)+(3*2)+(2*9)+(1*1)=143
143 % 10 = 3
So 134952-91-3 is a valid CAS Registry Number.