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98192-57-5

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98192-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98192-57-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,1,9 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98192-57:
(7*9)+(6*8)+(5*1)+(4*9)+(3*2)+(2*5)+(1*7)=175
175 % 10 = 5
So 98192-57-5 is a valid CAS Registry Number.

98192-57-5Relevant articles and documents

Neoflavonoids as inhibitors of HIV-1 replication by targeting the Tat and NF-κB pathways

Olmedo, Dionisio A.,López-Pérez, José Luis,Del Olmo, Esther,Bedoya, Luis M.,Sancho, Rocío,Alcamí, José,Mu?oz, Eduardo,San Feliciano, Arturo,Gupta, Mahabir P.

, (2017/03/08)

Twenty-eight neoflavonoids have been prepared and evaluated in vitro against HIV-1. Antiviral activity was assessed on MT-2 cells infected with viral clones carrying the luciferase reporter gene. Inhibition of HIV transcription and Tat function were teste

Synthesis of Mammea Coumarins. Part 1. The Coumarins of the Mammea A, B, and C Series

Crombie, Leslie,Jones, Raymond C. F.,Palmer, Christopher J.

, p. 317 - 332 (2007/10/02)

The naturally-occuring Mammea coumarins of the 4-phenyl-(mammea A), propyl-(mammea B), and 4-pentyl-(mammea C) series have been prepared by Pechmann condensation of an acylphloroglucinol (3-methylbutyryl-, 2-methylbutyryl-, butyryl-, or 2-methylpropionyl-) with the appropriate β-ketoester to give a mixture of 6- and 8-acyl-5,7-dihydroxycoumarins that could be separated.C-Alkylation with 3-methylbut-2-enyl bromide, or 3,7-dimethylocta-2,6-dienyl chloride, in aqueous potassium hydroxide completed the synthesis of the Mammea coumarins having unmodified prenyl or geranyl substituents; oxidative modification of the prenyl group led to the mammea cyclo E and cyclo F coumarins.Some mammea cyclo D (chromeno) coumarins were synthesized by reaction of acylcoumarins with 1,1-dimethoxy-3-methylbutan-3-ol.

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