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Butanedioic acid, [[2-bromo-3-(phenylmethoxy)phenyl]methylene]-, 1-methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

740836-56-0

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740836-56-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 740836-56-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,8,3 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 740836-56:
(8*7)+(7*4)+(6*0)+(5*8)+(4*3)+(3*6)+(2*5)+(1*6)=170
170 % 10 = 0
So 740836-56-0 is a valid CAS Registry Number.

740836-56-0Relevant academic research and scientific papers

Unforeseen formation of 2-bromo-3-hydroxybenzaldehyde by bromination of 3-hydroxybenzaldehyde

Van Otterlo, Willem A. L.,Michael, Joseph P.,Fernandes, Manuel A.,De Koning, Charles B.

, p. 5091 - 5094 (2004)

Contrary to literature reports, bromination of 3-hydroxybenzaldehyde can afford both 2-bromo-5-hydroxybenzaldehyde and 2-bromo-3-hydroxybenzaldehyde, but 4-bromo-3-hydroxybenzaldehyde was not detected. 2-Bromo-3-hydroxybenzaldehyde was converted into 2-(benzyloxy)-1-bromo-5-methoxy-7-methylnaphthalene. X-ray crystallographic analysis supports the identity of 2-bromo-3- hydroxybenzaldehyde.

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