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Alanine, 3-(methylsulfinyl)-, also known as 3-(methylsulfinyl)-L-alanine or L-methionine sulfoxide, is an organic compound with the chemical formula C4H9NO3S. It is a derivative of the amino acid alanine, where the sulfur atom in the side chain is oxidized to a sulfoxide. Alanine, 3-(methylsulfinyl)- (6CI,8CI,9CI) is a naturally occurring metabolite in various organisms, including humans, and is formed as a result of the oxidation of methionine. It plays a role in the regulation of protein function and has been implicated in the response to oxidative stress. The compound is also of interest in the field of food science, as it can be formed in proteins during food processing and storage, potentially affecting the taste and quality of the food.

4740-94-7

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4740-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4740-94-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,4 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4740-94:
(6*4)+(5*7)+(4*4)+(3*0)+(2*9)+(1*4)=97
97 % 10 = 7
So 4740-94-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H9NO3S/c1-9(8)2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)

4740-94-7Relevant academic research and scientific papers

Oxidation by chlorine dioxide of methionine and cysteine derivatives to sulfoxides

Loginova,Rubtsova,Kuchin

experimental part, p. 752 - 754 (2009/05/09)

Methionine and cysteine derivatives were oxidized asymmetrically by chlorine dioxide to sulfinyl derivatives.

OXIDATION REACTION OF AMINO ACIDS IN AQUEOUS SOLUTION INDUCED BY ARGON ARC PLASMA

Harada, Kaoru,Takasaki, Michiaki

, p. 4839 - 4842 (2007/10/02)

It was found that Argon arc plasma induced a powerful and clean stepwise oxidation reaction in aqueous solution containing various amino acids without using any oxidizing agent.

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