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75200-57-6

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75200-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75200-57-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,0 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75200-57:
(7*7)+(6*5)+(5*2)+(4*0)+(3*0)+(2*5)+(1*7)=106
106 % 10 = 6
So 75200-57-6 is a valid CAS Registry Number.

75200-57-6Relevant articles and documents

One-pot greener protocol for the synthesis of substituted coumarins

Ranjith, Choorikkat,Paul, Nidhin,Vijayan

experimental part, p. 235 - 238 (2011/11/30)

An expeditious one-pot procedure for the synthesis of substituted coumarins under microwave irradiation is accounted. The method describes an easy and fast method for the synthesis of substituted acetoxy coumarins which are very good fluorophores for medical as well as industrial applications. It makes use of easily available reagents such as triethylamine and acetic anhydride as catalyst. The method finds good applications for the synthesis of multisubstituted coumarins.

Synthesis of 2,6-Diphenyl-3-(p-substituted phenyl)-5-methyl-7-oxo-7H-furobenzopyrans

Rao, B. Vittal,Somayajulu, V. V.,Atal, C. K.,Chandhoke, Nimmi

, p. 220 - 221 (2007/10/02)

Some 2,6-diphenyl-3-(p-alkylaminoalkoxy)phenyl-5-methyl-7-oxo-7H-furobenzopyrans (Ib-i) have been synthesized.All the compounds are found to be devoid of anti-implantation activity at a dose level of 25 mg/kg/day, when tested on albino rats.

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