116020-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116020-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,0,2 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 116020-28:
(8*1)+(7*1)+(6*6)+(5*0)+(4*2)+(3*0)+(2*2)+(1*8)=71
71 % 10 = 1
So 116020-28-1 is a valid CAS Registry Number.
116020-28-1Relevant articles and documents
NOVEL METHOD OF SYNTHESIS OF FLUOROQUINOLONES
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Page/Page column 6; 13, (2009/04/24)
The invention relates to a method of preparation of fluoroquinolones of formula (I) from compounds of formula (II): in which R1, R2, R3, R4, R5, R6, R7, and X are as defined in Claim 1.