154705-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154705-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,7,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 154705-84:
(8*1)+(7*5)+(6*4)+(5*7)+(4*0)+(3*5)+(2*8)+(1*4)=137
137 % 10 = 7
So 154705-84-7 is a valid CAS Registry Number.