Cas 110977-82-7,5,6-Dihydro-6,6-dimethyl-3-(phenylhydrazono)pyran-2(4H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 110977-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,9,7 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 110977-82:
(8*1)+(7*1)+(6*0)+(5*9)+(4*7)+(3*7)+(2*8)+(1*2)=127
127 % 10 = 7
So 110977-82-7 is a valid CAS Registry Number.

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110977-82-7Relevant academic research and scientific papers

Lactones, XI: Syntheses of 4,9-Dihydropyrano-indol-1(3H)-ones from &α-Ethoxalyl-&γ-lactones

Lehmann, Jochen,Ghoneim, Khadiga M.,El-Fattah, Bothaina Abd,El-Gendy, Adel A.

, p. 22 - 29 (2007/10/02)

Cleavage and decarboxylation of the α-ethoxalyl-γ-lactones 1a-d followed by treatment with phenylhydrazines yield the hydrazones 4a-l, which can be rearranged to the indololactones 5a-m.Starting from the δ-lactones 6 and 10, the same reactions lead to indoles without lactone ring closure.

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