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S-(2-carboxyethyl)-L-cysteine, also known as 2-Carboxyethylcysteine or Cys-Gly, is a dipeptide consisting of L-cysteine and glycine. It is a water-soluble, white crystalline powder with a molecular formula of C5H9NO5S and a molecular weight of 189.19 g/mol. S-(2-carboxyethyl)-L-cysteine is formed by the Michael addition of L-cysteine to acrolein, resulting in a thioether linkage between the cysteine sulfur and the acrolein carbon. S-(2-carboxyethyl)-L-cysteine is an important biomarker for oxidative stress and lipid peroxidation, as it is formed during the reaction of L-cysteine with reactive aldehydes generated from the peroxidation of polyunsaturated fatty acids. It has been found in various biological samples, including plasma, urine, and tissues, and is used as an indicator of oxidative stress in various diseases and conditions.

4033-46-9

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4033-46-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4033-46-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,3 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4033-46:
(6*4)+(5*0)+(4*3)+(3*3)+(2*4)+(1*6)=59
59 % 10 = 9
So 4033-46-9 is a valid CAS Registry Number.
InChI:InChI=1/C6H11NO4S/c7-4(6(10)11)3-12-2-1-5(8)9/h4H,1-3,7H2,(H,8,9)(H,10,11)/t4-/m0/s1

4033-46-9 Well-known Company Product Price

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  • TCI America

  • (C2781)  S-(2-Carboxyethyl)-L-cysteine  >98.0%(T)

  • 4033-46-9

  • 100mg

  • 670.00CNY

  • Detail

4033-46-9Relevant academic research and scientific papers

Optical Resolution by Preferential Crystallization of (RS)-2-Amino-3-(2-carboxyethylthio)propanoic Acid

Shiraiwa, Tadashi,Kubo, Motoki,Watanabe, Mitsuhiro,Nakatani, Hidemasa,Ohkubo, Masanori,Kurokawa, Hidemoto

, p. 818 - 820 (2007/10/03)

Electrophilic additions of DL- and L-Cys to propenoic acid afforded (RS)- and (R)-2-amino-3-(2-carboxyethylthio)propanoic acids , respectively. (RS)-ACE was found to exist as a conglomerate based on its melting point, solubility, and infrared spectrum. (RS)-ACE was optically resolved by preferential crystallization to yield (R)- and (S)-ACE.The obtained (R)- and (S)-ACE were efficiently recrystallized from water, taking account of the solubility of (RS)-ACE, to give them in optically pure form. - Keywords: optically active 2-amino-3-(2-carboxyethylthio)propanoic acid; conglomerate; optical resolution; preferential crystallization

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