DL-Cystein
DL-cysteine
Grundinformationen
- CAS
3374-22-9- Standard-SMILES
NC(CS)C(=O)O- InChIKey
XUJNEKJLAYXESH-UHFFFAOYSA-N- Summenformel
- C3H7NO2S
- Durchschnittliche Molmasse
- 121,16 g/mol
- Monoisotopische Masse
- 121,01974964
Überblick
Cysteine is a sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. It has a role as a fundamental metabolite. It is a polar amino acid, a sulfur-containing amino acid and an alpha-amino acid. It contains a sulfanylmethyl group. It is a conjugate base of a cysteinium. It is a conjugate acid of a cysteinate(1-). It is a tautomer of a cysteine zwitterion.
Namen und Bezeichner
- Bevorzugter Name
- DL-cysteine
- IUPAC
- 2-amino-3-sulfanylpropanoic acid
- Lokaler Name
- DL-Cystein
- Englischer Name
- DL-Cysteine
- Summenformel
- C3H7NO2S
- Molmasse
- 121.16
Namen und Synonyme
DL-Cysteine3374-22-9CYSTEINE, DL-DTXSID50469885CM45Q5YAFNSC-63864DTXCID3026988RefChem:1083896222-160-2DL-CysteinZysteinHcys
Weitere Namen anzeigen
rac-cysteinedl-cysteinaDL-CystenineDL-Cysteine 0Cysteine (9CI)
150146-94-4(+/-)-2-Amino-3-mercaptopropionic acid[35s]cysteineNSC 63864H-DL-Cys-OHd,l-cysteine2-amino-3-sulfanyl-propanoic acidUNII-5CM45Q5YAF
Datenbank-Bezeichner
- CAS
3374-22-9- PubChem CID
- 594
- DTXSID
DTXSID5046988- ChEMBL
CHEMBL54943- ChEBI
CHEBI:15356- UNII
- 5CM45Q5YAF
- EC Number
- 222-160-2
- Nikkaji
- J1.261K
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- -2,5
- Polarare Oberfläche (TPSA)
- 64,3 Ų
- H-Brücken-Donoren
- 3
- H-Brücken-Akzeptoren
- 4
- Frei drehbare Bindungen
- 2
- Schwere Atome
- 7
- Formalladung
- 0
- Komplexität
- 75,3
Experimentelle und physikochemische Eigenschaften
Chemical ClassesBiological Agents -> Amino Acids and Derivatives
DrugsPharmaceuticals -> Metabolite of Carbocisteine
Physical DescriptionWhite powder with a sulfurous odor; [Acros Organics MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- 225 °C · 225 °C (dec.) (lit.)
- Siedepunkt
- 293.9 · 293.9±35.0 °C(Predicted)
- Dichte
- 1.197 · 1.197 (estimate)
- Brechungsindex
- 1.513 · 1.5130 (estimate)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- Löslichkeit
- Aqueous Acid (Sparingly), DMSO (Sightly), Water (Slightly)
- pka
- 2.07 · 2.07±0.10(Predicted)
- Aggregatzustand
- Powder
- Farbe
- White to off-white
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 6.4% (3 of 47) of reports.
Warning
H302 (93.6%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 47 reports by companies from 6 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Hazards SummaryCauses other liver changes and effects on phosphatases and dehydrogenases in 2-day intermittent intraperitoneal studies of mice; [RTECS] May cause irritation; [Acros Organics MSDS]
Hazard Classes and CategoriesAcute Tox. 4 (93.6%)
Sicherheitsdaten
- F
- 8-10-23
- wgk
- 3
- ridadr
- UN 2923 6.1(8) / PGIII
- hs_code
- 29309013
- RTECS-Nr.
- HA1595000
- risk_code
- 20/21/22-36/37/38-22-35
- hazard_code
- Xn,Xi,C
- safety_code
- 26-36-37/39-45-36/37/39
- hazard_class
- 8, 6.1
- Speicherklasse
- 6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
- Hazard Classifications
- Acute Tox. 4 InhalationAcute Tox. 4 OralEye Dam. 1Skin Corr. 1ASTOT SE 3
Chemie und Industrie
Verwendung und Herstellung
UsesCysteine is a non-essential amino acid that has been used as a dough conditioner and veterinary detoxicant; [Merck Index]
Anwendungen
VerwendenDL-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
Ergänzende Hinweise
DefinitionChEBI: A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.
Zugehörige Reaktionen
81
Notizen zur Verbindung
Wird geladen…