Cas 1338726-19-4,3-(4-nitrophenyl)-7-trifluoromethyl[1,2,4]triazolo[4,3-a]pyrimidine

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Check Digit Verification of cas no

The CAS Registry Mumber 1338726-19-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,7,2 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1338726-19:
(9*1)+(8*3)+(7*3)+(6*8)+(5*7)+(4*2)+(3*6)+(2*1)+(1*9)=174
174 % 10 = 4
So 1338726-19-4 is a valid CAS Registry Number.

1338726-19-4Upstream product

1103734-96-8 C₁₂H₈F₃N₅O₂

1338726-19-4Downstream Products

1338726-19-4Relevant academic research and scientific papers

Regioselective synthesis and characterization of new 3-aryl-7- trifluoromethyl-[1,2,4]triazolo[4,3-a]pyrimidines

Zanatta, Nilo,Amaral, Simone S.,Dos Santos, Josiane M.,Fernandes, Liana Da S.,Bonacorso, Helio G.,Martins, Marcos A. P.

experimental part, p. 1085 - 1090 (2011/11/06)

The regioselective synthesis and characterization of a new series of 3-aryl-7-trifluoromethyl[1,2,4]triazolo[4,3-a]pyrimidines from the oxidative heterocyclization of 2-(N′-benzylidenehydrazino)-4- trifluoromethylpyrimidines with copper dichloride is described.

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