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Record Information
Version1.0
Creation Date2018-12-04 20:29:04 UTC
Update Date2020-06-04 20:42:28 UTC
MCDB ID BMDB0063636
Secondary Accession Numbers
  • BMDB63636
Metabolite Identification
Common NamePenicillin G
DescriptionPenicillin G is narrow spectrum antibiotic used to treat infections caused by susceptible bacteria. It is a natural penicillin antibiotic that is administered intravenously or intramuscularly due to poor oral absorption. Penicillin G may also be used in some cases as prophylaxis against susceptible organisms. Natural penicillins are considered the drugs of choice for several infections caused by susceptible gram positive aerobic organisms, such as Streptococcus pneumoniae, groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridans group streptococci, and non-penicillinase producing staphylococcus. Aminoglycosides may be added for synergy against group B streptococcus (S. agalactiae), S. viridans, and Enterococcus faecalis. The natural penicillins may also be used as first or second line agents against susceptible gram positive aerobic bacilli such as Bacillus anthracis, Corynebacterium diphtheriae, and Erysipelothrix rhusiopathiae. Natural penicillins have limited activity against gram negative organisms; however, they may be used in some cases to treat infections caused by Neisseria meningitidis and Pasteurella. They are not generally used to treat anaerobic infections. Resistance patterns, susceptibility and treatment guidelines vary across regions.
Structure
Thumb
Synonyms
Chemical FormulaC16H18N2O4S
Average Molecular Weight334.39
Monoisotopic Molecular Weight334.098727764
IUPAC Name(2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Traditional Namepenicillin G
CAS Registry Number61-33-6
SMILES
[H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)CC1=CC=CC=C1)C(O)=O
InChI Identifier
InChI=1S/C16H18N2O4S/c1-16(2)12(15(21)22)18-13(20)11(14(18)23-16)17-10(19)8-9-6-4-3-5-7-9/h3-7,11-12,14H,8H2,1-2H3,(H,17,19)(H,21,22)/t11-,12+,14-/m1/s1
InChI KeyJGSARLDLIJGVTE-MBNYWOFBSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as dipeptides. These are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentDipeptides
Alternative Parents
Substituents
  • Alpha-dipeptide
  • Penicillin
  • N-acyl-alpha amino acid or derivatives
  • Alpha-amino acid or derivatives
  • Phenylacetamide
  • Penam
  • Monocyclic benzene moiety
  • Benzenoid
  • Beta-lactam
  • Thiazolidine
  • Tertiary carboxylic acid amide
  • Azetidine
  • Carboxamide group
  • Lactam
  • Secondary carboxylic acid amide
  • Carboxylic acid
  • Azacycle
  • Monocarboxylic acid or derivatives
  • Organoheterocyclic compound
  • Dialkylthioether
  • Hemithioaminal
  • Thioether
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Organic oxide
  • Carbonyl group
  • Hydrocarbon derivative
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point214 - 217 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.28 g/LNot Available
LogP1.5Not Available
Predicted Properties
PropertyValueSource
logP1.92ALOGPS
logP1.08ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.53ChemAxon
pKa (Strongest Basic)-2.6ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area86.71 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity84.53 m³·mol⁻¹ChemAxon
Polarizability33.54 ųChemAxon
Number of Rings3ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Concentrations
StatusValueReferenceDetails
Detected and Quantified0.036 uM
  • Nina Bilandžić, B...
details
HMDB IDHMDB0015186
DrugBank IDDB01053
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID5693
KEGG Compound IDC05551
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkBenzylpenicillin
METLIN IDNot Available
PubChem Compound5904
PDB IDPNN
ChEBI ID18208
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Nina Bilandžić, Božica Solomun Kolanović, Ivana Varenina, Giampiero Scortichini, Loredana Annunziata, Matko Brstilo, Nevenka Rudan (2011). Nina Bilandžić, Božica Solomun Kolanović, Ivana Varenina, Giampiero Scortichini, Loredana Annunziata, Matko Brstilo, Nevenka Rudan. Veterinary drug residues determination in raw milk in Croatia. Food Control. Volume 22, Issue 12, December 2011, Pages 1941-1948. Food Control.