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65023-77-0

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65023-77-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65023-77-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,0,2 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65023-77:
(7*6)+(6*5)+(5*0)+(4*2)+(3*3)+(2*7)+(1*7)=110
110 % 10 = 0
So 65023-77-0 is a valid CAS Registry Number.

65023-77-0Downstream Products

65023-77-0Relevant articles and documents

Dimroth Rearrangement and Other Investigations on Benzofuropyrimidines

Sangapure, S. S.,Agasimundin, Y. S.

, p. 115 - 117 (2007/10/02)

Synthesis of 3-alkyl- and 3-aryl-3,4-dihydro-4-iminobenzofuropyrimidines (IV-IX) by the reaction of 3-(ethoxymethylene)amino-2-benzofurancarbonitrile (II) with alkyl- and aryl-amines, and their Dimroth type rearrangement to 4-alkyl- and 4-aryl-aminobenzofuropyrimidines (X-XIV) are described.The reactions of II with ammonia and hydrazine hydrate giving 4-aminobenzofuropyrimidine (III) and 3-amino-4-imino-3,4-dihydrobenzofuropyrimidine (XV) respectively have been investigated.Conversion of XV into s-triazolopyrimidobenzofuran (XVI) and 3-amino-2-benzofurancarbonitrile (I) into various 2-alkyl-4-alkoxybenzofuropyrimidines (XVII-XX) is also reported.

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