Citric Acid Chemical Formula

2-hydroxypropane-1,2,3-tricarboxylic acid

Citric Acid CAS No: 77-92-9 Citric Acid Molecular formula: C6H8O7 PubChem CID: 311

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Citric Acid Structure

1.50×

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-).

3D conformer

Citric Acid Formula

CAS Number: 77-92-9
Molecular formula: C6H8O7
Molecular weight: 192.12
Exact mass: 192.02700259
IUPAC name: 2-hydroxypropane-1,2,3-tricarboxylic acid
SMILES: C(C(=O)O)C(CC(=O)O)(C(=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

Data source: Pubchem view

Citric Acid Synonyms (239 total)

134367-01-4 141633-96-7 1i2s 1o4l 1rq2 1y4a 201-069-1 2bo4 2c4v 2fw6 2fwp 4aci 4nrm 4o61 4to8 680-681-4 77-92-9 79586-22-4 920-306-6 921-454-4 1,2,3-Propanetricarboxylic acid, 2-hydroxy- 1,2,3-Propanetricarboxylic acid, 2-hydroxy- (9CI) 1,2,3-PROPANETRICARBOXYLIC ACID,2-HYDROXY (CITRIC ACID) 1,2,3-Propanetricarboxylio acid, 2-hydroxy- 1,2,3-Tricarboxy-2-hydroxypropane 1,2,3-Tricarboxy-2-hydroxypropane; 1,3-Propanetricarboxylic acid, 2-hydroxy- 2-(carboxymethyl)-2-hydroxybutanedioate;hydron 2-hydroxy-1,2,3-propanetricarboxyic acid 2-hydroxy-1,2,3-propane-tricarboxylic acid 2-hydroxy-1,2,3-propanetricarboxylic acid 2-Hydroxy-1,2,3-propane tricarboxylic acid 2-Hydroxy-1,2,3-propanetricarboxylic Acid, Anhydrous 2-Hydroxy-1,3-propanetricarboxylic acid 2-hydroxypropane-1,2,3-tricarboxylic acid 2-hydroxypropane-1,2,3-tricarboxylicacid 2-Hydroxypropanetricarboxylic acid 2-Hydroxytricarballylic acid 3-Carboxy-3-hydroxypentane-1,5-dioate 3-Carboxy-3-hydroxypentane-1,5-dioic acid 4-03-00-01272 (Beilstein Handbook Reference) 8F5D336A-442D-434A-9FB0-E400FF74E343 A1ERA ACD Solution Modified Acidum citricum ACIDUM CITRICUM [WHO-IP LATIN] Aciletten AE-562/40806920 AI3-06286 AKOS000119911 Anhydrous citrate Anhydrous citric acid ANHYDROUS CITRIC ACID [II] ANHYDROUS CITRIC ACID [JAN] Anhydrous citric acid (JP18) ANHYDROUS CITRIC ACID [MART.] ANHYDROUS CITRIC ACID [USP MONOGRAPH] B1650 BBL002530 BDBM14672 beta-Hydroxytricarballylate .beta.-Hydroxytricarballylic acid beta-Hydroxytricarballylic acid BETA-HYDROXY-TRICARBOXYLIC ACID BETZ 6251 Bio-Active bmse000076 Boric acid-potassium chloride-sodium hydroxide buffer BP-31028 BRD-K76792669-001-08-1 BRN 0782061 BSPBio_003240 C00158 C1949 C6H8O7 CAS-77-92-9 Caswell No. 221C CCRIS 3292 CHEBI:30769 CHEMBL1261 Chemfill cid_311 citr Citraclean Citraclean (Salt/Mix) CITRATE ANION Citrate standard for IC, 1000 mg/L, analytical standard Citretten citric acid citric-acid Citric acid (8CI) Citric acid, 99% Citric acid, >=99.5%, FCC, FG Citric acid, ACS reagent, >=99.5% Citric acid, analytical standard Citric acid anhydrous Citric acid, anhydrous Citric acid,anhydrous Citric Acid Anhydrous; 2-Hydroxypropane-1,2,3-tricarboxylic acid Citric acid, anhydrous, cell culture tested, plant cell culture tested Citric acid (anhydrous) CRS CITRIC ACID, ANHYDROUS [EP IMPURITY] Citric acid, anhydrous, European Pharmacopoeia (EP) Reference Standard Citric Acid, anhydrous, fine granular Citric acid, anhydrous, free-flowing, Redi-Dri(TM), ACS reagent, >=99.5% Citric Acid, anhydrous, granular Citric Acid, anhydrous granular, ACS Citric acid, Anhydrous, Pharmaceutical Secondary Standard; Certified Reference Material Citric Acid, anhydrous powder, A.C.S. Citric acid, anhydrous (USP) Citric Acid, anhydrous, USP CITRIC ACID, ANHYDROUS [USP IMPURITY] Citric acid, anhydrous [USP:JAN] CITRIC ACID,ANHYDROUS [VANDF] CITRIC ACID, ANHYDROUS [WHO-IP] Citric acid, BioUltra, anhydrous, >=99.5% (T) Citric acid bp Citric acid, certified reference material, TraceCERT(R) CITRIC ACID (CONSTITUENT OF CRANBERRY LIQUID PREPARATION) [DSC] CITRIC ACID (CONSTITUENT OF GARCINIA CAMBOGIA AND GARCINIA INDICA) [DSC] Citric acid, Electrophoresis Grade CITRIC ACID [FHFI] CITRIC ACID [HSDB] Citric acid, hydrous Citric acid,hydrous Citric acid, LR, anhydrous, >=99% Citric acid, meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance) Citric acid, meets USP testing specifications, anhydrous CITRIC ACID [MI] Citric acid monoglyceride Citric acid, p.a., 99.5% Citric acid, SAJ first grade, >=99.5% Citric acid, United States Pharmacopeia (USP) Reference Standard Citric acid [USAN:JAN] Citric acid, Vetec(TM) reagent grade, 99% CITRIC ACID [WHO-DD] Citric Buffered Normal Saline Citricum acidum CITRICUM ACIDUM [HPUS] Citro Citronensaeure CLENPIQ COMPONENT ANHYDROUS CITRIC ACID CS-6965 D00037 DA-72240 DB04272 DTXCID50332 DTXSID3020332 E 330 E-330 E330 EBC-26171 EC 201-069-1 EINECS 201-069-1 EN300-16683 EPA Pesticide Chemical Code 021801 F044712 F2191-0222 FC02313 FEMA No. 2306 FEMA Number 2306 G91031 GTPL2478 H3cit HMS1787N01 HMS2268B04 HMS5085B05 HOC(CH2COOH)2COOH HSDB 911 Hydrocerol A hydron;2-hydroxypropane-1,2,3-tricarboxylate HY-N1428 InChI=1/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 INS-330 INS NO.330 KBio3_002740 K-Lyte K-Lyte/Cl (Salt/Mix) K-Lyte DS K-Lyte DS (Salt/Mix) K-Lyte (Salt/Mix) Kyselina 2-hydroxy-1,2,3-propantrikarbonova Kyselina 2-hydroxy-1,2,3-propantrikarbonova [Czech] Kyselina citronova Kyselina citronova [Czech] MFCD00011669 MLS001066346 MSK4426 NCGC00090954-01 NCGC00090954-02 NCGC00090954-03 NCGC00090954-04 NCGC00090954-05 NCGC00090954-06 NCGC00090954-10 NCGC00254055-01 NCGC00259954-01 NCI60_022579 NCIOpen2_004062 NCIOpen2_004502 NCIStruc1_000057 NCIStruc2_000099 NS00007335 NSC-112226 NSC 30279 NSC-30279 NSC30279 NSC 626579 NSC-626579 NSC626579 NSC759606 Oprea1_502996 orb1224014 orb1301333 orb3140422 Pharmakon1600-01300013 Pleo Citro Q159683 RefChem:6630 SBB008922 SBI-0206765.0002 SBI-0206765.P001 SCHEMBL842 SMR000471840 Spectrum3_001850 ST50308093 STK286098 STR12052 Suby G T5S0636 Tox21_113436 Tox21_202405 Tox21_300124 Ubiquitin UNII-XF417D3PSL Urologic G Uro-trainer WLN: QV1XQVQ1VQ XF417D3PSL

Citric Acid Safety & hazards

Signal wordWarning

Hazard statements

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H319 (84.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335 (23%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H315: Causes skin irritation [Warning Skin corrosion/irritation]

Data sourced from PubChem

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