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38470-54-1

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38470-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38470-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,4,7 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 38470-54:
(7*3)+(6*8)+(5*4)+(4*7)+(3*0)+(2*5)+(1*4)=131
131 % 10 = 1
So 38470-54-1 is a valid CAS Registry Number.

38470-54-1Relevant articles and documents

Unexpected Knoevenagel self-condensation reaction of tetronic acid: synthesis of a new class of organic heterocyclic salts

Shaabani, Ahmad,Sarvary, Afshin,Keshipour, Sajjad,Rezayan, Ali Hossein,Ghadari, Rahim

, p. 1911 - 1914 (2010)

A new class of pyridinium, quinolinium, isoquinolinum, and N-methylimidazolium-3-(2,5-dihydro-5-oxofuran-3-yl)-4-hydroxyfuran-2(5H)-one salts have been prepared in high yields by reacting pyridine, quinoline, isoquinoline, N-methylimidazole, 1,4-diazabicyclo[2.2.2]octane, and their derivatives with tetronic acid in CH2Cl2.

N -bromosuccinimide-promoted cyclization of -carboxymethyl enamino esters; Synthesis of functionalized 4-amino-2(5 H)-furanones

Toum, Valerie,Kadouri-Puchot, Catherine,Hamon, Louis,Lhommet, Gerard,Mouries-Mansuy, Virginie,Vanucci-Bacque, Corinne,Dechoux, Luc

experimental part, p. 2781 - 2788 (2011/10/18)

An easy, two-step approach to various 5-carboxymethyl-2(5H)-furanones is described. A detailed study of the reaction of -carboxymethyl enamino esters with N-bromosuccinimide is presented. Georg Thieme Verlag Stuttgart - New York.

N-substituted tetronamides as ambident nucleophilic building blocks for the synthesis of new 4-aza-2,3-didehydropodophyllotoxins

Madec, David,Mingoia, Francesco,Prestat, Guillaume,Poli, Giovanni

scheme or table, p. 1475 - 1478 (2009/04/07)

Aza-analogues of podophyllotoxin were synthesized in two steps from N-substituted tetronamides. The acid-mediated benzhydrylation of N-substituted tetronamides with a suitably func-tionalized benzhydrol quantitatively afforded the cyclization precursors.

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