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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 20:07:39 UTC
Update Date2022-11-23 22:29:19 UTC
HMDB IDHMDB0258512
Secondary Accession NumbersNone
Metabolite Identification
Common NameStreptonigrin
DescriptionNigrin B, also known as rufocromomycin or streptonigran, belongs to the class of organic compounds known as bipyridines and oligopyridines. These are organic compounds containing two pyridine rings linked to each other. Nigrin B has been detected, but not quantified in, black elderberries (Sambucus nigra). This could make nigrin b a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Nigrin B. This compound has been identified in human blood as reported by (PMID: 31557052 ). Streptonigrin is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Streptonigrin is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
5-Amino-6-(7-amino-5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolyl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-3-methylpicolinic acidChEBI
RufocromomicinaChEBI
RufocromomycinChEBI
RufocromomycineChEBI
RufocromomycinumChEBI
StreptonigranChEBI
NigrinKegg
5-Amino-6-(7-amino-5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolyl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-3-methylpicolinateGenerator
BrunemycinMeSH
BruneomycinMeSH
Chemical FormulaC25H22N4O8
Average Molecular Weight506.471
Monoisotopic Molecular Weight506.143763684
IUPAC Name5-amino-6-(7-amino-6-methoxy-5,8-dioxo-5,8-dihydroquinolin-2-yl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-3-methylpyridine-2-carboxylic acid
Traditional Namenigrin
CAS Registry NumberNot Available
SMILES
COC1=CC=C(C(O)=C1OC)C1=C(N)C(=NC(C(O)=O)=C1C)C1=CC=C2C(=O)C(OC)=C(N)C(=O)C2=N1
InChI Identifier
InChI=1S/C25H22N4O8/c1-9-14(10-6-8-13(35-2)23(36-3)20(10)30)15(26)19(29-17(9)25(33)34)12-7-5-11-18(28-12)22(32)16(27)24(37-4)21(11)31/h5-8,30H,26-27H2,1-4H3,(H,33,34)
InChI KeyPVYJZLYGTZKPJE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as bipyridines and oligopyridines. These are organic compounds containing two pyridine rings linked to each other.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassBipyridines and oligopyridines
Direct ParentBipyridines and oligopyridines
Alternative Parents
Substituents
  • 4-phenylpyridine
  • Quinoline quinone
  • Bipyridine
  • Methoxyphenol
  • Dihydroquinoline
  • Dimethoxybenzene
  • O-dimethoxybenzene
  • Pyridine carboxylic acid
  • Pyridine carboxylic acid or derivatives
  • Phenol ether
  • Phenoxy compound
  • Methoxybenzene
  • Anisole
  • Aryl ketone
  • Methylpyridine
  • Phenol
  • 1-hydroxy-4-unsubstituted benzenoid
  • Alkyl aryl ether
  • Aminopyridine
  • Monocyclic benzene moiety
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous amide
  • Vinylogous ester
  • Ketone
  • Amino acid or derivatives
  • Amino acid
  • Azacycle
  • Carboxylic acid derivative
  • Carboxylic acid
  • Enamine
  • Ether
  • Monocarboxylic acid or derivatives
  • Organopnictogen compound
  • Organic oxygen compound
  • Amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB007040
KNApSAcK IDC00026485
Chemspider ID10207545
KEGG Compound IDC02081
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID9287
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]