Citric Acid
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Description

Citric acid is a tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. It has a role as a calcium chelator, an antimicrobial agent, a chelator, a food acidity regulator and a fundamental metabolite. It is a conjugate acid of a citrate anion and a citrate(1-).

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mboya
Source license
Public Domain
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Tags

#nih-3d
#small molecules
#citric acid
#77-92-9
#citro
#citrate
#aciletten
#citretten
#2-hydroxypropane-1,2,3-tricarboxylic acid
#anhydrous citric acid
#chemfill
#citric acid, anhydrous
#hydrocerol a
#1,2,3-propanetricarboxylic acid, 2-hydroxy-
#citric acid anhydrous
#kyselina citronova
#2-hydroxy-1,2,3-propanetricarboxylic acid
#2-hydroxytricarballylic acid
#caswell no. 221c
#3-carboxy-3-hydroxypentane-1,5-dioic acid
#fema no. 2306
#2-hydroxypropanetricarboxylic acid
#fema number 2306
#k-lyte
#kyselina citronova [czech]
#k-lyte ds
#citric acid,anhydrous
#ccris 3292
#hsdb 911
#epa pesticide chemical code 021801
#citricum acidum
#citric acid monoglyceride
#uro-trainer
#ai3-06286
#suby g
#nsc 30279
#nsc 626579
#brn 0782061
#mfcd00011669
#nsc-30279
#nsc-626579
#chembl1261
#xf417d3psl
#kyselina 2-hydroxy-1,2,3-propantrikarbonova [czech]
#kyselina 2-hydroxy-1,2,3-propantrikarbonova
#chebi:30769
#.beta.-hydroxytricarballylic acid
#citr
#nsc30279
#nsc626579
#nsc-112226
#citric acid bp
#citric acid, 99%
#ncgc00090954-03
#e330
#2-hydroxy-1,2,3-propanetricarboxyic acid
#citric acid,hydrous
#dsstox_cid_332
#e 330
#beta-hydroxytricarballylic acid
#citric acid, hydrous
#citrate anion
#dsstox_rid_75520
#dsstox_gsid_20332
#141633-96-7
#ins no.330
#citric acid [usan:jan]
#cas-77-92-9
#ins-330
#1,3-propanetricarboxylic acid, 2-hydroxy-
#10402-15-0
#einecs 201-069-1
#unii-xf417d3psl
#e-330
#citraclean
#citronensaeure
#acidum citricum
#citric-acid
#anhydrous citrate
#2fwp
#4aci
#4nrm
#h3cit
#citric acid, anhydrous [usp:jan]
#citric acid,(s)
#citric acid (8ci)
#k-lyte (salt/mix)
#1i2s
#1o4l
#1rq2
#1y4a
#2bo4
#2c4v
#2fw6
#4to8
#citraclean (salt/mix)
#citric acid-[13c6]
#citric acid (anhydrous)
#spectrum3_001850
#wln: qv1xqvq1vq
#beta-hydroxytricarballylate
#cid_311
#k-lyte/cl (salt/mix)
#citric acid [mi]
#k-lyte ds (salt/mix)
#acidum citricum monohydrate
#bmse000076
#hoc(ch2cooh)2cooh
#ec 201-069-1
#citric acid [fhfi]
#citric acid [hsdb]
#ncistruc1_000057
#ncistruc2_000099
#nciopen2_004062
#nciopen2_004502
#oprea1_502996
#bspbio_003240
#citric acid anhydrous (jan)
#4-03-00-01272 (beilstein handbook reference)
#citric acid, anhydrous, usp
#mls001066346
#citric acid [who-dd]
#citric acid (fragrance grade)
#citric acid, anhydrous (usp)
#citricum acidum [hpus]
#anhydrous citric acid (jp17)
#gtpl2478
#citric acid (industrial grade)
#citric acid, analytical standard
#dtxsid3020332
#bdbm14672
#citric acid, p.a., 99.5%
#kbio3_002740
#4o61
#citric acid, electrophoresis grade
#hms1787n01
#hms2268b04
#pharmakon1600-01300013
#zinc895081
#anhydrous citric acid [ii]
#anhydrous citric acid [jan]
#hy-n1428
#str12052
#tox21_113436
#tox21_202405
#tox21_300124
#bbl002530
#nsc759606
#s5761
#stk286098
#citric acid,anhydrous [vandf]
#akos000119911
#anhydrous citric acid [mart.]
#citric acid, lr, anhydrous, >=99%
#2-hydroxy-1,2,3-propanetricarboxylate
#acidum citricum [who-ip latin]
#cs-6965
#db04272
#3-carboxy-3-hydroxypentane-1,5-dioate
#citric acid, >=99.5%, fcc, fg
#citric acid, acs reagent, >=99.5%
#citric acid, anhydrous powder, a.c.s.
#2-hydroxy-1,3-propanetricarboxylic acid
#citric acid, anhydrous [who-ip]
#ncgc00090954-01
#ncgc00090954-02
#ncgc00090954-04
#ncgc00090954-05
#ncgc00254055-01
#ncgc00259954-01
#2-hydroxypropane-1,2,3-tricarboxylicacid
#bp-31028
#citric acid, anhydrous granular, a.c.s.
#nci60_022579
#smr000471840
#sbi-0206765.p001
#citric acid, saj first grade, >=99.5%
#2-hydroxy-1,2,3-propane tricarboxylic acid
#2-hydroxy-1,2,3-propanenetricarboxylic acid
#anhydrous citric acid [usp monograph]
#c1949
#citric acid, anhydrous [ep impurity]
#citric acid, vetec(tm) reagent grade, 99%
#ft-0623957
#ft-0665073
#ft-0728530
#citric acid, anhydrous [usp impurity]
#clenpiq component anhydrous citric acid
#c00158
#d00037
#ae-562/40806920
#anhydrous citric acid component of clenpiq
#citric acid, bioultra, anhydrous, >=99.5% (t)
#q159683
#j-520099
#1,2,3-propanetricarboxylic acid, 2-hydroxy- (9ci)
#citric acid, certified reference material, tracecert(r)
#citric acid, meets usp testing specifications, anhydrous
#f2191-0222
#8f5d336a-442d-434a-9fb0-e400ff74e343
#citrate standard for ic, 1000 mg/l, analytical standard
#1,2,3-propanetricarboxylic acid,2-hydroxy (citric acid)
#citric acid, united states pharmacopeia (usp) reference standard
#citric acid (constituent of cranberry liquid preparation) [dsc]
#citric acid, anhydrous, cell culture tested, plant cell culture tested
#citric acid, anhydrous, european pharmacopoeia (ep) reference standard
#citric acid, anhydrous, free-flowing, redi-dri(tm), acs reagent, >=99.5%
#citric acid (constituent of garcinia cambogia and garcinia indica) [dsc]
#citric acid, anhydrous, pharmaceutical secondary standard; certified reference material
#citric acid, meets analytical specification of ph. eur., bp, usp, e330, anhydrous, 99.5-100.5% (based on anhydrous substance)
#en300-16683
#3mf
#blend
#fbx
#glb
#jpg
#mtl
#obj
#ply
#png
#stl
#wrl
#x3d

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Citric Acid

From NIH 3D
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Category

learning

License

CC0

Published

9/1/2026

Availability

free on NIH 3D