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146981-09-1

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146981-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146981-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,8 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 146981-09:
(8*1)+(7*4)+(6*6)+(5*9)+(4*8)+(3*1)+(2*0)+(1*9)=161
161 % 10 = 1
So 146981-09-1 is a valid CAS Registry Number.

146981-09-1Downstream Products

146981-09-1Relevant articles and documents

The Synthesis, Structure-Activity, and Structure-Side Effect Relationships of a Series of 8-Alkoxy- and 5-Amino-8-alkoxyquinolone Antibacterial Agents

Sanchez, Joseph P.,Gogliotti, Rocco D.,Domagala, John M.,Gracheck, Stephen J.,Huband, Michael D.,et al.

, p. 4478 - 4487 (2007/10/03)

A series of 1-cyclopropyl-6-fluoro-8-alkoxy (8-methoxy and 8-ethoxy)-quinoline-3-carboxylic acids and 1-cyclopropyl-5-amino-6-fluoro-8-alkoxyquinoline-3-carboxylic acids has been prepared and evaluated for antibacterial activity.In addition, they were also compared to quinolones with classic substitution at C8 (H, F, Cl) and the naphthyridine nucleus in a phototoxicity and mammalian cell cytotoxiciry assay.The series of 8-methoxyquinolones had antibacterial activity against Gram-positive, Gram-negative, and anaerobic bacteria equivalent to that most active 8-substituted compounds (8-F and 8-Cl).There was also a concomitant reduction in several of the potential side effects (i.e., phototoxicity and clonogenicity) compared to the most active quinolones with classic substitution at C-8.The 8-ethoxy derivatives had an even better safety profile but were significantly less active (2-3 dilutions) in the antibacterial assay.

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