| Identification | More | [Name]
L-Cysteine ethyl ester hydrochloride | [CAS]
868-59-7 | [Synonyms]
ETHYL 2-AMINO-3-MERCAPTOPROPANOATE HYDROCHLORIDE
Ethyl cysteine hydrochloride
H-CYS-OET
H-CYS-OET HCL
L-CYSTEINE ETHYL ESTER HYDROCHLORIDE
L-CYSTEINE ETHYL ESTER MONOHYDROCHLORIDE
L-CYSTEIN ETHYL ESTER HYDROCHLORIDE
cysteineethylesterhydrochloride
ethylester,hydrochloride,l-cystein
Cysteinmethylesterhydrochloride,98%
L-Cysteine Ethyl Ester HCl
ethyl L-cysteinate hydrochloride
L-CYSTEINE ETHYL ESTER HYDROCHLORIDE, 98 % (99% EE/GLC)
L-CYSTEINE ETHYL ESTER HYDROCHLORIDECRYS TALLINE
Cystanin
Cysteine, ethyl ester, hydrochloride, L-(6CI, 7CI, 8CI)
Ethyl cysteinate hydrochloride
NSC 117387
NSC 519837
L-Cysteine ethyl ester hydrochloride 98% | [EINECS(EC#)]
212-779-6 | [Molecular Formula]
C5H12ClNO2S | [MDL Number]
MFCD00012631 | [Molecular Weight]
185.67 | [MOL File]
868-59-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
123-125 °C(lit.) | [alpha ]
-13 º (c=8, 1 N HCL) | [refractive index ]
-11.5 ° (C=8, 1mol/L HCl) | [storage temp. ]
−20°C
| [solubility ]
Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | [form ]
powder
| [color ]
white | [Optical Rotation]
[α]20/D 7.9°, c = 1 in 1 M HCl | [Water Solubility ]
Soluble in water. | [Sensitive ]
Hygroscopic | [BRN ]
3562600 | [Major Application]
peptide synthesis | [Cosmetics Ingredients Functions]
SKIN PROTECTING | [InChI]
InChI=1/C5H11NO2S.ClH/c1-2-8-5(7)4(6)3-9;/h4,9H,2-3,6H2,1H3;1H/t4-;/s3 | [InChIKey]
JFKJWWJOCJHMGV-NDILARRWNA-N | [SMILES]
C(=O)(OCC)[C@@H](N)CS.Cl |&1:5,r| | [CAS DataBase Reference]
868-59-7(CAS DataBase Reference) | [EPA Substance Registry System]
868-59-7(EPA Substance) |
| Questions And Answer | Back Directory | [Synthesis]
Synthesis of L-cysteine ethyl ester hydrochloride: L-cysteine (24.20 g, 0.20 mol) and 300 mL of ethanol were placed in a 500 mL round-bottom flask. Thionyl chloride (22 mL, 0.30 mol) was slowly added dropwise under ice-water bath conditions. After the addition was complete, the reaction was continued at room temperature for 3 h, followed by reflux for 12 h. The reaction solution was cooled to room temperature, and the solvent was evaporated to obtain 36.42 g of white powder, with a yield of 98.1%. |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H315-H319-H335 | [Precautionary statements ]
P261-P305+P351+P338 | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
2
| [RTECS ]
HA1820000
| [TSCA ]
Yes | [HS Code ]
29309090 | [Storage Class]
11 - Combustible Solids |
| Hazard Information | Back Directory | [Chemical Properties]
white powder | [Uses]
L-Cysteine ethyl ester hydrochloride is widely used in food additive, cosmetic, pharmaceutical area. | [Definition]
ChEBI: Ethyl L-cysteine hydrochloride is an alpha-amino acid ester. | [reaction suitability]
reaction type: solution phase peptide synthesis |
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