DL-CYSTEIC ACID

Base Information

• Chemical Name: DL-CYSTEIC ACID
• CAS No.: 3024-83-7
• Molecular Formula: C₃H₇NO₅S
• Molecular Weight: 169.158
• Mol file: 3024-83-7.mol

Synonyms:DL-CYSTEIC ACID;DL-Cystetic Acid

Chemical Property of DL-CYSTEIC ACID

Chemical Property:

• Melting Point: 273°C (rough estimate)
• Refractive Index: 1.5130 (estimate)
• PKA: 1.3, 1.9, 8.70(at 25℃)
• PSA: 126.07000
• Density: 1.775g/cm³
• LogP: 0.06720

Purity/Quality:

97% ^*data from raw suppliers

3-SULFOALANINE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of DL-CYSTEIC ACID

There total 63 articles about DL-CYSTEIC ACID 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: 100.0%

2(S)-2-[(benzyloxycarbonyl)amino]-3-(neopentyloxysulfonyl)propanoic acid (220951-71-3) → L-Cysteic acid (498-40-8,3024-83-7)

Guidance literature:

With hydrogen fluoride; 3-methyl-phenol; at 0 - 20 ℃; for 1h;

DOI:10.1021/jo9812680

Reference yield: 94.0%

L-Cysteine (52-90-4) → L-Cysteic acid (498-40-8,3024-83-7)

Guidance literature:

With dihydrogen peroxide; trichlorophosphate; In water; at 80 ℃; for 0.5h; Micellar solution;

DOI:10.1055/s-0031-1289628

Reference yield: 94.0%

L-cystine (56-89-3) → L-Cysteine (52-90-4) + L-Cysteic acid (498-40-8,3024-83-7)

Guidance literature:

With hydrogenchloride; sulfuric acid; hydrogen bromide; In water; at 45 ℃; electrolysis (graphite sheets, i = 0.5 A/cm²);

DOI:10.1016/S0040-4020(01)87076-9

upstream raw materials:

L-Cysteine

cysteine disulfide

L-cystine

sulfo-pyruvic acid

Downstream raw materials:

2-amino-3-phenacyloxysulfonyl-propionic acid phenacyl ester

acetaldehyde

cysteic acid

(R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-sulfopropanoic acid