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DL-cysteine structure
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DL-cysteine

TL;DR: DL-cysteine (CAS 3374-22-9) is a chemical compound with molecular formula C3H7NO2S and molecular weight 121.01975 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.

2-amino-3-sulfanylpropanoic acid

Also Known As: DL-Cysteine, cysteine, L-cysteine, D-cysteine, 2-Amino-3-mercaptopropanoic acid

CAS Number
3374-22-9
Molecular Formula
C3H7NO2S
Molecular Weight
121.01975 g/mol
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Application Areas

Top 5 of 22 IPC patent classification(s) from the SureChEMBL global patent database.

Agrochemicals (4508 patents) Analytical Reagents (30188 patents) Biotechnology (134468 patents) Catalysts (476 patents) Coatings & Adhesives (335 patents)

Technical Specifications

Molecular FormulaC3H7NO2S
Molecular Weight121.01975 g/mol
XLogP-2.5
Topological Polar Surface Area (TPSA)64.3 Ų
Hydrogen Bond Donors3
Hydrogen Bond Acceptors4
Rotatable Bonds2
Exact Mass121.01975 Da
Heavy Atoms7
Complexity75.0
SMILESC(C(C(=O)O)N)S
InChIKeyXUJNEKJLAYXESH-UHFFFAOYSA-N

Product Description

Applications: DL-cysteine is used in biotechnology workflows and life-science research, as well as pharmaceutical synthesis routes and API production. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton scale), with full analytical documentation (COA, MSDS, HPLC, NMR, MS).

DL-cysteine (CAS 3374-22-9) is a biotechnology compound with the molecular formula C3H7NO2S and a molecular weight of 121.02 g/mol. Synonyms include DL-Cysteine and cysteine.

Custom synthesis and full analytical documentation (COA/MSDS) are available from CoreyChem. Request a quotation with your required quantity and purity for current lead time and pricing.

Chemical Property Profile of DL-cysteine

XLogP
-2.5
TPSA (Topological Polar Surface Area)
64.3
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
4
Rotatable Bonds
2
Heavy Atoms
7
Complexity
75.0
Exact Mass
121.01975
Monoisotopic Mass
121.01975
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of DL-cysteine

The XLogP value of -2.5 indicates that DL-cysteine is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 64.3 Ų falls within the moderate polarity range, balancing permeability and solubility for DL-cysteine. Following Lipinski's Rule of Five, DL-cysteine has 3 hydrogen bond donor(s) and 4 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the CAS number of DL-cysteine?

The CAS number of DL-cysteine is 3374-22-9.

What is the molecular formula of DL-cysteine?

The molecular formula of DL-cysteine is C3H7NO2S.

What is the molecular weight of DL-cysteine?

The molecular weight of DL-cysteine is 121.01975 g/mol.

What are the applications of DL-cysteine?

DL-cysteine is used in biotechnology workflows and life-science research, as well as pharmaceutical synthesis routes and API production. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton...

Where can I buy DL-cysteine?

You can request a quote for DL-cysteine directly from CoreyChem. Contact us or email [email protected] for pricing and availability.

Does CoreyChem offer custom synthesis for DL-cysteine?

Yes, CoreyChem provides custom synthesis services for DL-cysteine and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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