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CAS No 56-88-2 , L-Homocysteine,S-[(2R)-2-amino-2-carboxyethyl]-

  • Name: L-Homocysteine,S-[(2R)-2-amino-2-carboxyethyl]-
  • Synonyms: L-Cystathionine; Butanoic acid,2-amino-4-[(2-amino-2-carboxyethyl)thio]-, [R-(R*,S*)]-; L-(+)-Cystathionine; Cystathionine, L- (8CI);L-Homocysteine,S-[(2R)-2-amino-2-carboxyethyl]-;Cystathionine(6CI,7CI); L-Homocysteine,S-(2-amino-2-carboxyethyl)-, (R)-;
  • CAS Registry Number:
  • Melting Point: 312
  • Flash Point: 244.7°C
  • Boiling Point: 481°Cat760mmHg
  • Density: 1.43g/cm3
  • Refractive index: 1.592
  • Flash Point: 244.7°C
  • EINECS: 200-295-8
  • Molecular Weight: 222.26
  • InChI: InChI=1/C7H14N2O4S/c8-4(6(10)11)1-2-14-3-5(9)7(12)13/h4-5H,1-3,8-9H2,(H,10,11)(H,12,13)/t4-,5+/m1/s1
  • Molecular Formula: C7H14N2O4S
  • Molecular Structure:CAS No:56-88-2 L-Homocysteine,S-[(2R)-2-amino-2-carboxyethyl]-

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References of L-Homocysteine,S-[(2R)-2-amino-2-carboxyethyl]-
Title: L-Cystathionine
CAS Registry Number: 56-88-2
CAS Name: S-[(2R)-2-Amino-2-carboxyethyl]-L-homocysteine
Synonyms: L-2-amino-4-[(2-amino-2-carboxyethyl)thio]butyric acid
Molecular Formula: C7H14N2O4S
Molecular Weight: 222.26
Percent Composition: C 37.83%, H 6.35%, N 12.60%, O 28.79%, S 14.43%
Literature References: An amino acid whose homocysteine and serine moieties are both L in configuration. Intermediate in transsulfuration whereby the mammal transfers the sulfur of methionine via homocysteine to cysteine: Hope, Proc. 4th Int. Congr. Biochem. 13, 63 (1960). Preparation: du Vigneaud et al., J. Biol. Chem. 143, 59 (1942); Weiss, Stekol, J. Am. Chem. Soc. 73, 2497 (1951); Sch?berl, T?uber, Ann. 599, 23 (1956). Isolation from human brain: Tallau et al., J. Biol. Chem. 230, 707 (1958). Abs config: G. Jung et al., Eur. J. Biochem. 35, 436 (1973); C.-S. Chen et al., Biochim. Biophys. Acta 538, 534 (1978). Review: J. P. Greenstein, M. Winitz, Chemistry of the Amino Acids vol. 3 (John Wiley, N. Y., 1961) p 2682.
Properties: Crystals (rectangular parallelepipeds), dec 312° (darkening at 270°). [a]D20 +23.7° (1N HCl).
Optical Rotation: [a]D20 +23.7° (1N HCl)