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292871-44-4

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292871-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 292871-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,2,8,7 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 292871-44:
(8*2)+(7*9)+(6*2)+(5*8)+(4*7)+(3*1)+(2*4)+(1*4)=174
174 % 10 = 4
So 292871-44-4 is a valid CAS Registry Number.

292871-44-4Relevant articles and documents

P-Sulfonic acid calixarenes as efficient and reusable organocatalysts for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/-thiones

Da Silva, Daniel L.,Fernandes, Sergio A.,Sabino, Ad?o A.,De Fá, ?ngelo

, p. 6328 - 6330 (2011)

A new and efficient methodology is proposed for obtaining 3,4-dihydropyrimidin-2(1H)-ones/-thiones through Biginelli reactions. It is based on the use of less than the stoichiometric amount ofp-sulfonic acid calixarenes as organocatalysts. A number of aro

Convenient one pot synthesis of some novel derivatives of thiazolo[2,3-b]dihydropyrimidinone possessing 4-methylthiophenyl moiety and evaluation of their antibacterial and antifungal activities

Ashok, Mithun,Holla, Bantwal Shivarama,Kumari, Nalilu Suchetha

, p. 380 - 385 (2008/02/01)

A series of new 2-(arylidene/5-arylfurfurylidene)-5-(4-methylthiophenyl)-6-carbethoxy-7- methyl-5H-thiazolo[2,3-b]pyrimidin-3(1H)-ones 2 and 3 have been synthesized by a three component (MCR) reaction involving 4-(4-methylthiophenyl)-5-carbethoxy-6-methyl-3,4-dihydropyrimidin-2(1H)- thione 1, monochloroacetic acid and arylaldehydes/arylfurfuraldehydes, respectively. The newly synthesized compounds were well characterized by elemental analysis, IR, 1H NMR and mass spectral studies. The newly synthesized compounds were screened for their antibacterial and antifungal activities and have exhibited moderate to excellent growth inhibition of bacteria and fungi. The results of such studies have been discussed in this paper.

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