Homocysteic acid

Homocysteic acid
	L-Homocysteic acid
Names
	IUPAC name (2S)-2-Amino-4-sulfobutanoic acid
	Other names Homocysteate
Identifiers
CAS Number	14857-77-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:132223 ;
ChemSpider	154529;
PubChem CID	177491;
UNII	YW13F86W9W ;
CompTox Dashboard (EPA)	DTXSID101020602 ;
	InChI InChI=1S/C4H9NO5S/c5-3(4(6)7)1-2-11(8,9)10/h3H,1-2,5H2,(H,6,7)(H,8,9,10)/t3-/m0/s1 Key: VBOQYPQEPHKASR-VKHMYHEASA-N;
	SMILES C(CS(=O)(=O)O)[C@@H](C(=O)O)N;
Properties
Chemical formula	C4H9NO5S
Molar mass	183.18 g·mol−1
Appearance	white or colorless solid
Melting point	261 °C (502 °F; 534 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Homocysteic acid is the organosulfur compound with the formula HO₃SCH₂CH₂CH(NH₂)CO₂H. A white solid, it is sulfonic acid-containing non-proteinogenic amino acid. It is an analog of glutamic acid and is a potent NMDA receptor agonist.^[1]^[2] It is related to homocysteine, a by-product of methionine metabolism.

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Homocysteic acid is prepared by the oxidation of homocystine with aqueous bromine.^[3]

References