IMPPAT Phytochemical information: 
Citric acid

Citric acid
Summary

SMILES: OC(=O)C(CC(=O)O)(CC(=O)O)O
InChI: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
InChIKey: KRKNYBCHXYNGOX-UHFFFAOYSA-N
DeepSMILES: OC=O)CCC=O)O)))CC=O)O)))O
Functional groups: CC(=O)O; CO
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Organic acids and derivatives
ClassyFire Class: Carboxylic acids and derivatives
ClassyFire Subclass: Tricarboxylic acids and derivatives
NP Classifier Biosynthetic pathway: Fatty acids
NP Classifier Superclass: Fatty Acids and Conjugates
NP Classifier Class: Hydroxy fatty acids
Synonymous chemical names:
citric acid, citric, citric-acid, citirc acid
External chemical identifiers:
CID:CID_311; ChEMBL:CHEMBL1261; ChEBI:CHEBI:30769; ZINC:ZINC000000895081; FDASRS:XF417D3PSL; SureChEMBL:SCHEMBL842; MolPort-046-936-449
Chemical structure download


Citric acid
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 192.12
Log P RDKit -1.25
Topological polar surface area (Å2) RDKit 132.13
Number of hydrogen bond acceptors RDKit 4
Number of hydrogen bond donors RDKit 4
Number of carbon atoms RDKit 6
Number of heavy atoms RDKit 13
Number of heteroatoms RDKit 7
Number of nitrogen atoms RDKit 0
Number of sulfur atoms RDKit 0
Number of chiral carbon atoms RDKit 0
Stereochemical complexity RDKit 0
Number of sp hybridized carbon atoms RDKit 0
Number of sp2 hybridized carbon atoms RDKit 3
Number of sp3 hybridized carbon atoms RDKit 3
Shape complexity RDKit 0.5
Number of rotatable bonds RDKit 5
Number of aliphatic carbocycles RDKit 0
Number of aliphatic heterocycles RDKit 0
Number of aliphatic rings RDKit 0
Number of aromatic carbocycles RDKit 0
Number of aromatic heterocycles RDKit 0
Number of aromatic rings RDKit 0
Total number of rings RDKit 0
Number of saturated carbocycles RDKit 0
Number of saturated heterocycles RDKit 0
Number of saturated rings RDKit 0
Number of Smallest Set of Smallest Rings (SSSR) RDKit 0


Citric acid
Drug-likeness
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 0
Lipinski’s rule of 5 filter RDKit Passed
Number of Ghose filter violations RDKit 2
Ghose filter RDKit Failed
Veber filter RDKit Good
Pfizer 3/75 filter RDKit Good
GSK 4/400 filter RDKit Good
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.427421


Citric acid
ADME properties
Property nameToolProperty value
Bioavailability score SwissADME 0.56
Solubility class [ESOL] SwissADME Highly soluble
Solubility class [Silicos-IT] SwissADME Soluble
Blood Brain Barrier permeation SwissADME No
Gastrointestinal absorption SwissADME Low
Log Kp (Skin permeation, cm/s) SwissADME -8.69
Number of PAINS structural alerts SwissADME 0
Number of Brenk structural alerts SwissADME 0
CYP1A2 inhibitor SwissADME No
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME No
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME No
P-glycoprotein substrate SwissADME No


Citric acid
Phytochemical - Human target proteins supported by experimental evidence associations
Human target proteins supported by experimental evidence
IMPPAT target identifierGene identifierHGNC symbolEntrez Gene identifierSource
TAR_EXP_000187ENSG00000118432CNR11268ChEMBL
TAR_EXP_000193ENSG00000153086ACMSD130013ChEMBL, NPASS
TAR_EXP_000339ENSG00000151617EDNRA1909ChEMBL
TAR_EXP_000348ENSG00000146648EGFR1956ChEMBL
TAR_EXP_000178ENSG00000160791CCR51234ChEMBL
TAR_EXP_000239ENSG00000120907ADRA1A148ChEMBL
TAR_EXP_000137ENSG00000184984CHRM51133ChEMBL
TAR_EXP_000222ENSG00000112062MAPK141432ChEMBL
TAR_EXP_000243ENSG00000150594ADRA2A150ChEMBL
TAR_EXP_000249ENSG00000274286ADRA2B151ChEMBL
TAR_EXP_000250ENSG00000100448CTSG1511ChEMBL
TAR_EXP_000255ENSG00000184160ADRA2C152ChEMBL
TAR_EXP_000214ENSG00000282608ADORA3140ChEMBL
TAR_EXP_000203ENSG00000128271ADORA2A135ChEMBL
TAR_EXP_000200ENSG00000163485ADORA1134ChEMBL
TAR_EXP_000258ENSG00000043591ADRB1153ChEMBL
TAR_EXP_000261ENSG00000169252ADRB2154ChEMBL
TAR_EXP_000263ENSG00000140505CYP1A21544ChEMBL
TAR_EXP_000265ENSG00000255974CYP2A61548ChEMBL
TAR_EXP_000267ENSG00000188778ADRB3155ChEMBL
TAR_EXP_000271ENSG00000165841CYP2C191557ChEMBL
TAR_EXP_000273ENSG00000138109CYP2C91559ChEMBL
TAR_EXP_000276ENSG00000272532CYP2D61565ChEMBL
TAR_EXP_000277ENSG00000130649CYP2E11571ChEMBL
TAR_EXP_000280ENSG00000160868CYP3A41576ChEMBL
TAR_EXP_000324ENSG00000184845DRD11812ChEMBL
TAR_EXP_000325ENSG00000149295DRD21813ChEMBL
TAR_EXP_000326ENSG00000151577DRD31814ChEMBL
TAR_EXP_000327ENSG00000069696DRD41815ChEMBL
TAR_EXP_000332ENSG00000180772AGTR2186ChEMBL
TAR_EXP_000233ENSG00000171873ADRA1D146ChEMBL
TAR_EXP_000134ENSG00000180720CHRM41132ChEMBL
TAR_EXP_000177ENSG00000183813CCR41233ChEMBL
TAR_EXP_000357ENSG00000277571ELANE1991ChEMBL
TAR_EXP_001518ENSG00000103546SLC6A26530ChEMBL
TAR_EXP_000395ENSG00000091831ESR12099ChEMBL, NPASS
TAR_EXP_001609ENSG00000151090THRB7068NPASS
TAR_EXP_001642ENSG00000121807CCR2729230ChEMBL
TAR_EXP_001669ENSG00000114812VIPR17433ChEMBL
TAR_EXP_001684ENSG00000104267CA2760ChEMBL
TAR_EXP_001716ENSG00000140718FTO79068BindingDB, NPASS
TAR_EXP_001726ENSG00000163517HDAC1179885ChEMBL
TAR_EXP_001727ENSG00000004948CALCR799ChEMBL
TAR_EXP_001753ENSG00000137752CASP1834ChEMBL
TAR_EXP_001761ENSG00000100429HDAC1083933ChEMBL, NPASS
TAR_EXP_001592ENSG00000059377TBXAS16916ChEMBL
TAR_EXP_001811ENSG00000138735PDE5A8654ChEMBL
TAR_EXP_001837ENSG00000163394CCKAR886ChEMBL
TAR_EXP_001923ENSG00000066135KDM4A9682ChEMBL, NPASS
TAR_EXP_001926ENSG00000048052HDAC99734ChEMBL
TAR_EXP_001928ENSG00000068024HDAC49759ChEMBL
TAR_EXP_001942ENSG00000012504NR1H49971NPASS
TAR_EXP_001171ENSG00000132170PPARG5468NPASS
TAR_EXP_001164ENSG00000135766EGLN154583BindingDB
TAR_EXP_001138ENSG00000166819PLIN15346BindingDB, ChEMBL, NPASS
TAR_EXP_001105ENSG00000082175PGR5241ChEMBL
TAR_EXP_001831ENSG00000171720HDAC38841ChEMBL
TAR_EXP_001591ENSG00000006638TBXA2R6915ChEMBL
TAR_EXP_001587ENSG00000115353TACR16869ChEMBL
TAR_EXP_001585ENSG00000075073TACR26865ChEMBL
TAR_EXP_001458ENSG00000168398BDKRB2624ChEMBL
TAR_EXP_000124ENSG00000129521EGLN3112399BindingDB
TAR_EXP_001320ENSG00000262418PTPRC5788ChEMBL
TAR_EXP_001299ENSG00000073756PTGS25743ChEMBL
TAR_EXP_001298ENSG00000095303PTGS15742ChEMBL
TAR_EXP_001289ENSG00000169403PTAFR5724ChEMBL
TAR_EXP_001231ENSG00000102882MAPK35595ChEMBL
TAR_EXP_001230ENSG00000100030MAPK15594ChEMBL
TAR_EXP_001222ENSG00000147099HDAC855869ChEMBL
TAR_EXP_001207ENSG00000154229PRKCA5578ChEMBL
TAR_EXP_001186ENSG00000138814PPP3CA5530ChEMBL
TAR_EXP_001181ENSG00000166148AVPR1A552ChEMBL
TAR_EXP_001175ENSG00000091542ALKBH554890NPASS
TAR_EXP_000125ENSG00000101180HRH311255ChEMBL
TAR_EXP_000127ENSG00000168539CHRM11128ChEMBL
TAR_EXP_000130ENSG00000181072CHRM21129ChEMBL
TAR_EXP_000132ENSG00000137491SLCO2B111309ChEMBL, NPASS
TAR_EXP_000133ENSG00000133019CHRM31131ChEMBL
TAR_EXP_001519ENSG00000142319SLC6A36531ChEMBL
TAR_EXP_001520ENSG00000108576SLC6A46532ChEMBL
TAR_EXP_001554ENSG00000291971SRC6714BindingDB, NPASS
TAR_EXP_001075ENSG00000061273HDAC751564ChEMBL
TAR_EXP_000387ENSG00000141736ERBB22064ChEMBL
TAR_EXP_001056ENSG00000065989PDE4A5141ChEMBL
TAR_EXP_001003ENSG00000112038OPRM14988ChEMBL
TAR_EXP_000734ENSG00000147246HTR2C3358ChEMBL
TAR_EXP_000733ENSG00000135914HTR2B3357ChEMBL
TAR_EXP_000732ENSG00000102468HTR2A3356ChEMBL
TAR_EXP_000727ENSG00000178394HTR1A3350ChEMBL
TAR_EXP_000704ENSG00000113749HRH23274ChEMBL
TAR_EXP_000703ENSG00000196639HRH13269ChEMBL
TAR_EXP_000697ENSG00000101076HNF4A3172BindingDB, NPASS
TAR_EXP_000692ENSG00000113161HMGCR3156ChEMBL
TAR_EXP_000685ENSG00000196591HDAC23066ChEMBL
TAR_EXP_000738ENSG00000158748HTR63362ChEMBL
TAR_EXP_000684ENSG00000116478HDAC13065ChEMBL
TAR_EXP_000533ENSG00000113327GABRG22566ChEMBL
TAR_EXP_000528ENSG00000145864GABRB22561ChEMBL
TAR_EXP_000522ENSG00000151834GABRA22555ChEMBL
TAR_EXP_000521ENSG00000022355GABRA12554ChEMBL
TAR_EXP_000515ENSG00000010810FYN2534ChEMBL
TAR_EXP_000461ENSG00000102755FLT12321ChEMBL
TAR_EXP_000411ENSG00000165092ALDH1A1216ChEMBL, NPASS
TAR_EXP_000405ENSG00000180210F22147ChEMBL
TAR_EXP_000397ENSG00000140009ESR22100ChEMBL
TAR_EXP_000645ENSG00000113580NR3C12908ChEMBL, NPASS
TAR_EXP_001053ENSG00000172572PDE3A5139ChEMBL
TAR_EXP_000760ENSG00000163464CXCR13577ChEMBL
TAR_EXP_000773ENSG00000169083AR367ChEMBL
TAR_EXP_001002ENSG00000082556OPRK14986ChEMBL
TAR_EXP_001001ENSG00000116329OPRD14985ChEMBL
TAR_EXP_000123ENSG00000269858EGLN2112398BindingDB
TAR_EXP_000081ENSG00000173198CYSLTR110800ChEMBL
TAR_EXP_000988ENSG00000185149NPY2R4887ChEMBL
TAR_EXP_000987ENSG00000164128NPY1R4886ChEMBL
TAR_EXP_000041ENSG00000147955SIGMAR110280ChEMBL
TAR_EXP_000005ENSG00000108840HDAC510014ChEMBL
TAR_EXP_000966ENSG00000116044NFE2L24780ChEMBL, NPASS
TAR_EXP_000761ENSG00000180871CXCR23579ChEMBL
TAR_EXP_000900ENSG00000214456PLIN5440503BindingDB
TAR_EXP_000004ENSG00000094631HDAC610013ChEMBL
TAR_EXP_000881ENSG00000087085ACHE43ChEMBL
TAR_EXP_000863ENSG00000176136MC5R4161ChEMBL
TAR_EXP_000862ENSG00000166603MC4R4160ChEMBL
TAR_EXP_000861ENSG00000124089MC3R4159ChEMBL
TAR_EXP_000851ENSG00000189221MAOA4128ChEMBL
TAR_EXP_000822ENSG00000182866LCK3932ChEMBL
TAR_EXP_000810ENSG00000128052KDR3791ChEMBL
TAR_EXP_000798ENSG00000055118KCNH23757ChEMBL
TAR_EXP_000883ENSG00000196611MMP14312ChEMBL
TAR_EXP_000888ENSG00000100985MMP94318ChEMBL