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190663-25-3

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190663-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190663-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,6,6 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 190663-25:
(8*1)+(7*9)+(6*0)+(5*6)+(4*6)+(3*3)+(2*2)+(1*5)=143
143 % 10 = 3
So 190663-25-3 is a valid CAS Registry Number.

190663-25-3Relevant articles and documents

Triflic anhydride mediated synthesis of 3,4-dihydroquinazolines: A three-component one-pot tandem procedure

Magyar, Christina L.,Wall, Tyler J.,Davies, Steven B.,Campbell, Molly V.,Barna, Haven A.,Smith, Sydney R.,Savich, Christopher J.,Mosey, R. Adam

, p. 7995 - 8000 (2019)

A one-pot three-component tandem reaction involving a key Pictet-Spengler-like annulation step has been developed, providing an efficient method for the synthesis of 3,4-dihydroquinazolines in moderate to good yields from amides, aldehydes, and amines. The multicomponent triflic anhydride mediated reaction tolerates the installation of numerous functional groups, affording extensive diversity about the heterocyclic scaffold.

1-(2-alkanamidoethyl)-6-methoxyindole derivatives: A new class of potent indole melatonin analogues

Tarzia, Giorgio,Diamantini, Giuseppe,Di Giacomo, Barbara,Spadoni, Gilberto,Esposti, Daniele,Nonno, Romolo,Lucini, Valeria,Pannacci, Marilou,Fraschini, Franco,Stankov, Bojidar Michaylov

, p. 2003 - 2010 (2007/10/03)

A new series of indole melatonin analogues, bearing the amido ethyl side chain attached at the N-1 position of the indole nucleus, were synthesized and tested for their affinity for the melatonin receptor isolated from quail optic tecta in a series of in

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