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21958-32-7

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21958-32-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21958-32-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,5 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21958-32:
(7*2)+(6*1)+(5*9)+(4*5)+(3*8)+(2*3)+(1*2)=117
117 % 10 = 7
So 21958-32-7 is a valid CAS Registry Number.

21958-32-7Relevant articles and documents

Palladium catalyzed chemo- and site-selective C-H acetoxylation and hydroxylation of oxobenzoxazine derivatives

Bakthadoss, Manickam,Vijay Kumar, Polu,Kumar, Ravan,Agarwal, Vishal

supporting information, p. 4465 - 4469 (2019/05/16)

An efficient protocol for the introduction of acetoxy and hydroxy functionalities on unactivated aryl sp2 carbons of oxobenzoxazine derivatives via an ortho-C-H activation reaction using a palladium catalyst has been developed for the first tim

Studies on Quinazolinones as Dual Inhibitors of Pgp and MRP1 in Multidrug Resistance

Wang, Shouming,Ryder, Hamish,Pretswell, Ian,Depledge, Paul,Milton, John,Hancox, Timothy C.,Dale, Ian,Dangerfield, Wendy,Charlton, Peter,Faint, Richard,Dodd, Rory,Hassan, Stephanie

, p. 571 - 574 (2007/10/03)

The syntheses and SAR studies of various quinazolinone compounds are described for the dual inhibition of Pgp and MRP1 in multidrug resistance.

Synthesis and evaluation of 2-aryl-4H-3,1-benzoxazin-4-ones as C1r serine protease inhibitors

Gilmore, John L.,Hays, Sheryl J.,Caprathe, Bradley W.,Lee, Chitase,Emmerling, Mark R.,Michael, Walter,Jaen, Juan C.

, p. 679 - 682 (2007/10/03)

A series of 2-aryl-4H-3,1-benzoxazin-4-ones have been synthesized and tested for inhibitory activity against C1r serine protease. Compounds were found that were equipotent and more selective than the reference compound FUT-175.

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