Cas 1243643-72-2,1-(3-cyclobutylidene-3-phenylprop-1-ynyl)-4-methylbenzene

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Check Digit Verification of cas no

The CAS Registry Mumber 1243643-72-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,3,6,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1243643-72:
(9*1)+(8*2)+(7*4)+(6*3)+(5*6)+(4*4)+(3*3)+(2*7)+(1*2)=142
142 % 10 = 2
So 1243643-72-2 is a valid CAS Registry Number.

1243643-72-2Upstream product

1243643-32-4 1-cyclobutyl-1-phenyl-3-p-tolylprop-2-yn-1-ol

1243643-72-2Downstream Products

1243643-72-2Relevant academic research and scientific papers

Unexpected iron(iii) chloride-catalysed dimerisation of 1,1,3-trisubstituted-prop-2-yn-1-ols as an expedient route to highly conjugated indenes

Rao, Weidong,Chan, Philip Wai Hong

experimental part, p. 4016 - 4025 (2010/09/17)

A method to prepare highly conjugated indenes efficiently by iron(iii) chloride-catalysed dimerisation of trisubstituted propargylic alcohols under very mild conditions at room temperature is described. The reactions are rapid and operationally straightfo

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1243643-72-2

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