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1020540-98-0

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1020540-98-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1020540-98-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,5,4 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1020540-98:
(9*1)+(8*0)+(7*2)+(6*0)+(5*5)+(4*4)+(3*0)+(2*9)+(1*8)=90
90 % 10 = 0
So 1020540-98-0 is a valid CAS Registry Number.

1020540-98-0Upstream product

1020540-98-0Relevant articles and documents

One-pot synthesis of N2-aminoprotected 6-substituted and cycloalka[d] 4-trifluoromethyl-2-acetylaminopyrimidines

Bonacorso, Helio G.,Ferla, Adriana,Cechinel, Cleber A.,Zanatta, Nilo,Martins, Marcos A. P.

, p. 483 - 487 (2008/09/20)

(Chemical Equation Presented) The one-pot synthesis of a novel series of amino-protected 6-alkyl-, 6-aryl-, 6-heteroaryl- and 5,6-fused-cycloalkane 4-trifluoromethyl-2-acetylaminopyrimidines, where alkyl = Me; aryl = Ph, 4-CH3Ph, 4-FPh, 4-ClPh, 4-BrPh, 4-OCH3Ph, 4-NO 2Ph, 4,4′-biphenyl, 1-naphthyl; heteroaryl = 2-thienyl, 2-furyl and cycloalkyl = c-C6H4, c-C7H5 from the reaction of substituted 4-methoxy-1,1,1-trifluoroalk-3-en-2-ones with 1-acetylguanidine in acetonitrile or propan-2-ol as solvent, is reported. The acetylamino group of 2-acetylaminopyrimidines was hydrolyzed under three different conditions to afford the corresponding free 2-aminopyrimidines.

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