Identification | More | [Name]
L-CYSTEIC ACID MONOHYDRATE | [CAS]
23537-25-9 | [Synonyms]
BETA-SULFO-L-ALANINE MONOHYDRATE H-CYSTEIC-ACID-OH H2O L-2-AMINO-3-SULFOPROPIONIC ACID MONOHYDRATE L-CYSTEIC ACID MONOHYDRATE (R)-2-AMINO-3-SULFOPROPIONIC ACID L-3-Sulfoalanine L-Amino-sulfopropionicacid 2-Amino-3-sulfopropionicacidmonohydrate L-Cysteicacidmonohydrate,99% L-CYSTEIC ACID 1-HYDRATE CYSTEIC ACID, L-(RG) L-Alanine,3-sulfo-,monohydrate | [EINECS(EC#)]
207-861-3 | [Molecular Formula]
C3H9NO6S | [MDL Number]
MFCD00149544 | [Molecular Weight]
187.17 | [MOL File]
23537-25-9.mol |
Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
267 °C (dec.)(lit.)
| [solubility ]
H2O: soluble | [Stability:]
Stable. Combustible. | [optical activity]
[α]20/D +7.5±0.5°, c = 5% in H2O | [Water Solubility ]
Soluble in water. | [Merck ]
14,2780 | [BRN ]
1725495 | [InChIKey]
PCPIXZZGBZWHJO-DKWTVANSSA-N | [CAS DataBase Reference]
23537-25-9(CAS DataBase Reference) |
Safety Data | Back Directory | [Safety Statements ]
S22:Do not breathe dust . S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
3
| [HS Code ]
29379000 |
Hazard Information | Back Directory | [Chemical Properties]
white powder | [Uses]
Internal standard for amino acid analysis. | [Uses]
A major metabolite of non-essential amino acid L-Cysteine. | [Biochem/physiol Actions]
L-cysteic acid is an oxidation product of L-cysteine. L-Cysteic acid, an analogue of cysteine sulfinic acid, may be used in studies of excitatory amino acids in the brain, such as those that bind to cysteine sulfinic acid receptors. L-Cysteic acid is a useful agonist at several rat metabotropic glutamate receptors (mGluRs). | [Purification Methods]
Likely impurities are cystine and oxides of cysteine. Crystallise it from water by adding 2 volumes of EtOH. When recrystallised from aqueous MeOH it has m 264-266o, and the anhydrous acid has m ~260o(dec). [Chapeville & Formageot Biochim Biophys Acta 26 538 1957, Riordan & Giese Methods Enzymol 47 31 1977, Beilstein 4 IV 3296.] |
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