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27944-89-4

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27944-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27944-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,4 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 27944-89:
(7*2)+(6*7)+(5*9)+(4*4)+(3*4)+(2*8)+(1*9)=154
154 % 10 = 4
So 27944-89-4 is a valid CAS Registry Number.

27944-89-4Relevant articles and documents

Sodium Methyl Carbonate as an Effective C1 Synthon. Synthesis of Carboxylic Acids, Benzophenones, and Unsymmetrical Ketones

Hurst, Timothy E.,Deichert, Julie A.,Kapeniak, Lucas,Lee, Roland,Harris, Jesse,Jessop, Philip G.,Snieckus, Victor

, p. 3882 - 3885 (2019)

Reported is the synthesis of carboxylic acids, symmetrical ketones, and unsymmetrical ketones with selectivity achieved by exploiting the differential reactivity of sodium methyl carbonate with Grignard and organolithium reagents.

Palladium-Catalyzed Synthesis of Conjugated Allenynes via Decarboxylative Coupling

Smith, Mary K.,Tunge, Jon A.

, p. 5497 - 5500 (2017/10/25)

A new strategy to access conjugated allenynes via a decarboxylative coupling of propargyl esters of propiolates has been developed. In this process, allenyl-palladium intermediates are coupled with acetylides that are generated in situ to form the conjuga

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