Cas 180743-25-3,O-(γ-chlorobutyroyl)-2-propylphenol

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Check Digit Verification of cas no

The CAS Registry Mumber 180743-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,7,4 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 180743-25:
(8*1)+(7*8)+(6*0)+(5*7)+(4*4)+(3*3)+(2*2)+(1*5)=133
133 % 10 = 3
So 180743-25-3 is a valid CAS Registry Number.

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180743-25-3Relevant academic research and scientific papers

Acylation of phenols with γ-chlorobutyroyl chloride and transformations of the reaction products

Yusubov

, p. 978 - 980 (1996)

Alkylphenols afford only O-acyl derivatives on treatment with γ-chlorobutyroyl chloride in the presence of both Et3N and AlCl3 at 20-60 °C. They cyclize under the action of K2CO3 in DMSO into the respective cycl

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