l,l-Ethylenedicysteine

Base Information

• Chemical Name: l,l-Ethylenedicysteine
• CAS No.: 14344-48-0
• Molecular Formula: C8H16 N2 O4 S2
• Molecular Weight: 268.35
• Hs Code.: 2930909090
• NSC Number: 254031
• DSSTox Substance ID: DTXSID80276266
• Nikkaji Number: J2.260.016H
• Mol file: 14344-48-0.mol

Synonyms:l,l-ethylenedicysteine;2-[2-[(1-carboxy-2-sulfanylethyl)amino]ethylamino]-3-sulfanylpropanoic acid;NSC254031;SCHEMBL900178;DTXSID80276266;BQHFYSWNHZMMDO-UHFFFAOYSA-N;NSC-254031;N,N'-bis(1-carboxy-2-mercaptoethyl)ethylenediamine;2,2'-(Ethane-1,2-diyldiazanediyl)bis(3-sulfanylpropanoic acid) (non-preferred name)

Chemical Property of l,l-Ethylenedicysteine

Chemical Property:

• Vapor Pressure: 4.78E-10mmHg at 25°C
• Melting Point: 245-246℃
• Boiling Point: 467.8°Cat760mmHg
• Flash Point: 236.7°C
• PSA: 176.26000
• Density: 1.366g/cm³
• LogP: -0.28660
• XLogP3: -5.4
• Hydrogen Bond Donor Count: 6
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 9
• Exact Mass: 268.05514934
• Heavy Atom Count: 16
• Complexity: 216

Purity/Quality:

99% ^*data from raw suppliers

N,N'-ETHYLENEDI-L-CYSTEINE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C(CNC(CS)C(=O)O)NC(CS)C(=O)O

Technology Process of l,l-Ethylenedicysteine

There total 3 articles about l,l-Ethylenedicysteine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 37.0%

L-thioproline (34592-47-7,2756-91-4,6070-92-4,60731-25-1) → N,N'-ethylenebis(L-cysteine) (14344-48-0)

Guidance literature:

With ammonia; sodium; for 1h; Reflux;

DOI:10.3906/kim-1007-799

Reference yield: 23.0%

L-thiaproline (444-27-9,19291-02-2,34592-47-7,45521-09-3,2756-91-4,6070-92-4,60731-25-1) → N,N'-ethylenebis(L-cysteine) (14344-48-0)

Guidance literature:

With sodium; ammonium chloride; In ammonia; at 20 ℃;

Reference yield:

S,S'-bis-benzyl ethylene-bis-L-cysteine (14344-59-3) → N,N'-ethylenebis(L-cysteine) (14344-48-0)

Guidance literature:

With ammonia; sodium;

DOI:10.1139/v67-009

upstream raw materials:

S,S'-bis-benzyl ethylene-bis-L-cysteine

L-thioproline

L-thiaproline

Downstream raw materials:

S,S'-bis-benzyl-N,N'-bis-benzyloxycarbonyl ethylene bis-L-β-homocysteine

S,S'-bis-benzyl-N,N'-bis-benzyloxycarbonyl ethylene bis-L-β-homocysteine dimethylester

S,S'-bis-benzyl-N,N'-bis-benzyloxycarbonyl ethylene bis-L-cysteinoyl diazomethane

S,S'-bis-benzyl-N,N'-bis-benzyloxycarbonyl ethylene-bis-L-cysteine

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