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2-Butenedioic acid, 2-bromo-, diethyl ester, (E)-, also known as (E)-2-bromo-2-butenedioic acid diethyl ester, is an organic compound with the chemical formula C8H11BrO4. It is a derivative of 2-butenedioic acid, featuring a bromine atom at the 2-position and diethyl ester groups attached to both carboxylic acid groups. 2-Butenedioic acid, 2-bromo-, diethyl ester, (E)- is characterized by its (E)-configuration, indicating the geometric arrangement of the double bond. It is a colorless to pale yellow liquid with a pungent odor and is soluble in organic solvents. This chemical is primarily used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals, as well as in the preparation of other organic compounds. Due to its reactivity, it should be handled with care, following proper safety protocols.

626-09-5

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626-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 626-09-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 626-09:
(5*6)+(4*2)+(3*6)+(2*0)+(1*9)=65
65 % 10 = 5
So 626-09-5 is a valid CAS Registry Number.

626-09-5Downstream Products

626-09-5Relevant academic research and scientific papers

NAD(P)+-NAD(P)H Model. 54. Free Radical Mechanism for the Reductive Debromination of vic-Dibromides to Alkenes

Yasui, Shinro,Nakamura, Kaoru,Ohno, Atsuyoshi

, p. 1847 - 1848 (1985)

vic-Dibromides undergo reductive debromination with a model of NAD(P)H, N-benzyl-1,4-dihydronicotinamide, to afford the corresponding alkenes quantitatively.Stereochemistry of the reduction suggests that the reaction involves a free radical intermediacy.

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