634900-34-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 634900-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,4,9,0 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 634900-34:
(8*6)+(7*3)+(6*4)+(5*9)+(4*0)+(3*0)+(2*3)+(1*4)=148
148 % 10 = 8
So 634900-34-8 is a valid CAS Registry Number.