L-homocysteine   Click here for help

GtoPdb Ligand ID: 5198

Synonyms: homocysteine
PDB Ligand
Compound class: Metabolite

L-homocysteine is commercially available from our sponsors

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 3
Hydrogen bond donors 2
Rotatable bonds 3
Topological polar surface area 102.12
Molecular weight 135.04
XLogP -2.22
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES NC(C(=O)O)CCS
Isomeric SMILES N[C@H](C(=O)O)CCS
InChI InChI=1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)/t3-/m0/s1
InChI Key FFFHZYDWPBMWHY-VKHMYHEASA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Classification Click here for help
Compound class Metabolite
IUPAC Name Click here for help
(2S)-2-amino-4-sulfanylbutanoic acid
Synonyms Click here for help
homocysteine
Database Links Click here for help
CAS Registry No. 6027-13-0
ChEBI CHEBI:17588
ChEMBL Ligand CHEMBL469662
GtoPdb PubChem SID 178101886
PubChem CID 91552
RCSB PDB Ligand HCS
Search Google for chemical match using the InChIKey FFFHZYDWPBMWHY-VKHMYHEASA-N
Search Google for chemicals with the same backbone FFFHZYDWPBMWHY
UniChem Compound Search for chemical match using the InChIKey FFFHZYDWPBMWHY-VKHMYHEASA-N
UniChem Connectivity Search for chemical match using the InChIKey FFFHZYDWPBMWHY-VKHMYHEASA-N
Wikipedia Homocysteine

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MedChemExpress
L-Homocysteine (links to external site)
Cat. No. HY-W010347