Cas 137968-13-9,1H-Pyrazol-1-amine, N-cyclohexylidene-

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Check Digit Verification of cas no

The CAS Registry Mumber 137968-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,6 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137968-13:
(8*1)+(7*3)+(6*7)+(5*9)+(4*6)+(3*8)+(2*1)+(1*3)=169
169 % 10 = 9
So 137968-13-9 is a valid CAS Registry Number.

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137968-13-9Relevant academic research and scientific papers

Rearrangement of N-(Alkylamino)azoles in Acid Media: A New Entry to C-Amino-N-substituted Azoles

Salazar, Loreto,Espada, Modesta,Avendano, Carmen,Claramunt, Rosa Maria,Sanz, Dionisia,Elguero, Jose

, p. 1563 - 1567 (1992)

A ring-opening / ring-closure mechanism for the thermal rearrangement of 1-(alkylamino)pyrazoles into 5-amino-1-alkylpyrazoles in acid medium has been established. 1-(Benzylamino)pyrazoles show a different reactivity, affording bis(5-amino-1-benzyl-4-pyrazolyl)phenylmethanes.The reaction was extended to 1-(alkylamino)indazoles but failed in the case of 1-(alkylamino)-1,2,4-triazoles.

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