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118792-51-1

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118792-51-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118792-51-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,7,9 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 118792-51:
(8*1)+(7*1)+(6*8)+(5*7)+(4*9)+(3*2)+(2*5)+(1*1)=151
151 % 10 = 1
So 118792-51-1 is a valid CAS Registry Number.

118792-51-1Relevant articles and documents

Cyclocondensation of Acylketene S,N- and N,N-acetals with Maleic Anhydride and Maleimide: A Facile One-Step Synthesis of Pyranopyrrole, Pyrrolopyridine and Condensed Pyrrole Derivatives

Gupta, Akhilesh K.,Ila, H.,Junjappa, H.

, p. 284 - 286 (2007/10/02)

The acylketene S,N-acetals 1a-c react with maleic anhydride (2) in refluxing acetonitrile to give the corresponding 3-pyrrolin-2-one-3-acetic acid derivatives 3a-c in good yields.Condensation of S,N-acetals 1a-j and 2 in presence of acetic anhydride direc

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