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200424-82-4

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200424-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200424-82-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,4,2 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 200424-82:
(8*2)+(7*0)+(6*0)+(5*4)+(4*2)+(3*4)+(2*8)+(1*2)=74
74 % 10 = 4
So 200424-82-4 is a valid CAS Registry Number.

200424-82-4Relevant articles and documents

InBr 3 -Catalyzed Synthesis of Aryl 1,2- trans -Thio(seleno)glycosides

Ma, Teng,Li, Changwei,Liang, Haijing,Wang, Zhaoyan,Yu, Lan,Xue, Weihua

supporting information, p. 2311 - 2314 (2017/10/06)

InBr 3 is demonstrated to be an efficient catalyst for reactions of fully acetated aldoses with aryl mercaptans or selenophenol at room temperature, rapidly furnishing the corresponding thioglycosides or selenoglycosides with exclusively 1,2- t

Total synthesis of everninomicin 13,384-1 - Part 2: Synthesis of the FGHA2 fragment

Nicolaou,Mitchell, Helen J.,Fylaktakidou, Konstantina C.,Rodriguez, Rosa Maria,Suzuki, Hideo

, p. 3116 - 3148 (2007/10/03)

The stereoselective synthesis of everninomicin's 13,384-1 (1) FGHA2 fragment (2) in a suitable form for incorporation into the final target (1) is described. The construction of the FG 1,1′-disaccharide linkage relied on a new method based on tin-acetal chemistry, while for the GH orthoester bridge, a number of approaches were explored. Final success for the latter construction came when a novel 1,2-phenylseleno migration reaction was applied to couple rings G and H, followed by ketene acetal and orthoester formation.

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