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Oxaloacetic Acid

HCID 970
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
328-42-7
Standard SMILES
O=C(O)CC(=O)C(=O)O
InChIKey
KHPXUQMNIQBQEV-UHFFFAOYSA-N
Molecular formula
C4H4O5
Average molar mass
132.07 g/mol
Monoisotopic mass
132.00587323

Overview

Oxaloacetic acid is an oxodicarboxylic acid that is succinic acid bearing a single oxo group. It has a role as a geroprotector and a metabolite. It is an oxo dicarboxylic acid and a C4-dicarboxylic acid. It is functionally related to a succinic acid. It is a conjugate acid of an oxaloacetate(2-).

Names & identifiers

Preferred name
Oxaloacetic Acid
IUPAC
2-oxobutanedioic acid
English name
Oxaloacetic acid
Molecular formula
C4H4O5
Molecular weight
132.07

Names & synonyms

oxalacetic acidoxaloacetic acid328-42-72-Oxobutanedioic acidoxaloacetateKetosuccinic acidOxosuccinic acid2-Ketosuccinic acidButanedioic acid, oxo-Bioepg2-oxo-butanedioic acidketo-oxaloacetate
Show more names
2-OXOSUCCINIC ACIDOAAOXOBUTANEDIOIC ACIDoxalaceticNSC 77688NSC 2842052-OXOSUCCINICOXLACETIC ACID
DTXSID8021646NSC-776882F399MM81JDTXCID901646CHEBI:30744Acid, OxalaceticAcid, Oxaloacetic2 Ketosuccinic Acid

Database identifiers

CAS
328-42-7
PubChem CID
970
DTXSID
DTXSID8021646
ChEMBL
CHEMBL1794791
ChEBI
CHEBI:30744
UNII
2F399MM81J
EC Number
206-329-8
Nikkaji
J5.675H

Properties

Computed structural propertiesFilling in

XLogP
-0.6
Topological polar surface area
91.7 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
5
Rotatable bonds
3
Heavy atoms
9
Formal charge
0
Complexity
158

Experimental & physicochemical properties

Chemical ClassesOther Classes -> Organic Acids
DrugsPharmaceuticals -> Listed in ZINC15
LipidsFatty Acyls [FA] -> Fatty Acids and Conjugates [FA01] -> Dicarboxylic acids [FA0117]
Solubility134 mg/mL
Melting Point161 °C
Physical Description · 2 items

Off-white powder; [Alfa Aesar MSDS]

Solid

Collision Cross Section139.45 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]

Physicochemical properties

Melting point
161 °C · 161 °C (dec.)(lit.)
Boiling point
163.94 °C · 163.94°C (rough estimate)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Danger

H314 (88.5%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P321, P337+P317, P363, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 61 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 3 items

Chemical: Butanedioic acid, oxo-

Status: Active Update: 14-04-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/22927

Butanedioic acid, oxo-: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationEvaluation - Chemicals that are unlikely to require further regulation to manage risks to environment
Hazards SummaryCauses convulsions in acute intraperitoneal studies of mice; [RTECS] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Alfa Aesar MSDS] See Oxalic acid and Acetic acid.
Hazard Classes and CategoriesSkin Corr. 1B (88.5%)

Toxicology

Adverse EffectsDermatotoxin - Skin burns.

Safety data

Chemistry & industry

Pharmacology

Tissue LocationsLiver
Cellular LocationsMitochondria
Metabolite Pathways2-Hydroxyglutric Aciduria (D And L Form)

Uses & manufacturing

General Manufacturing InformationButanedioic acid, 2-oxo-: ACTIVE
Applications · 4 items

DescriptionOxaloacetic acid, also known as oxalacetic acid, is is an α-keto acid and a key component of cellular metabolism in its conjugate base form, oxaloacetate. Oxaloacetate reacts with acetyl-coenzyme A (acetyl-CoA; ) and water to form citrate in the first step of the citric acid cycle and is regenerated by oxidation of L-malate in the final step. It is an intermediate in gluconeogenesis that is formed in mitochondria via carboxylation of pyruvate and subsequently decarboxylated and phosphorylated to form phosphoenolpyruvate. It can be converted to aspartate via addition of an amino group from glutamate. Oxaloacetate (30 μmol/min per 100 g for 30 minutes, i.v.) reduces blood glutamate levels, severity of neurological dysfunction, and brain edema in a rat model of closed head injury.

UsesUse as a TCA (Krebs cycle) intermediate supplement in hybridoma cell culture applications. Enhances hybridoma growth and productivity.

UsesOxaloacetic acid is a substrate for malate dehydrogenase and oxaloacetate decarboxylase. It is an inhibitor of succinic dehydrogenase. It is four carbon dicarboxylic acid that is an intermediate in the citric acid cycle and glucogenesis.

General DescriptionOxaloacetic acid is a dicarboxylic acid. It is an intermediate in the citric acid cycle. It is highly soluble in water and is present ubiquitously. It is produced in the mitochondria by the action of pyruvate carboxylase on pyruvate. Breakdown products of oxaloacetate includes malate, pyruvate and aspartic acid.

Related reactions

31 records
New reaction record
HRID 41851 reaction equation
HRID 41851As reactantuspto-grants-2013_09
HRID 133665 reaction equation
HRID 133665As reactantuspto-grants-2008_06
HRID 133666 reaction equation
HRID 133666As reactantuspto-grants-2008_06
HRID 133667 reaction equation
HRID 133667As reactantuspto-grants-2008_06
HRID 133672 reaction equation
HRID 133672As reactantuspto-grants-2008_06
HRID 219511 reaction equation
HRID 219511As reactantuspto-grants-2012_06
HRID 252661 reaction equation
HRID 252661As reactantuspto-grants-2011_01
HRID 252662 reaction equation
HRID 252662As reactantuspto-grants-2011_01
Page 1 of 4

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Density
1.3067 · 1.3067 (rough estimate)
vapor pressure
0.003 Pa · 0.003Pa at 20℃
refractive index
1.4 · 1.4000 (estimate)
Flash point
88 °C · 88°C
storage temp.
-20 °C · -20°C
solubility
2 O: · H2O: 100 mg/mL
form
powder
pka
2.22 · 2.22(at 25℃)
color
White to off-white
PH
3.05 · 3.05(1 mM solution);2.29(10 mM solution);1.68(100 mM solution)
biological source
synthetic (organic)
Water Solubility
soluble
Merck
14 · 14,6909
BRN
1705475 · 1705475
Stability
Stable. Incompatible with strong oxidizing agents. Keep refrigerated.
InChI
1S/C4H4O5/c5-2(4(8)9)1-3(6)7/h1H2,(H,6,7)(H,8,9)
InChIKey
KHPXUQMNIQBQEV-UHFFFAOYSA-N
SMILES
OC(=O)CC(=O)C(O)=O
LogP
-1.04 at · -1.04 at 20℃
CAS DataBase Reference
328 · 328-42-7(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
2 F399MM81J · 2F399MM81J
NIST Chemistry Reference
Oxalacetic acid(328-42-7)
EPA Substance Registry System
Oxalacetic acetic (328-42-7)
UNSPSC Code
12352205 · 12352205
NACRES
75 · NA.75
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
319 · H319
Precautionary statements
264 · P264-P280-P305+P351+P338-P337+P313
PPE
3 · Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes
C
Risk Statements
34 · 34
Safety Statements
26 · 26-36/37/39-45
RIDADR
3261 · UN 3261 8/PG 2
WGK Germany
3 · 3
TSCA
TSCA listed
HazardClass
8 · 8
PackingGroup
II
HS Code
2918300090 · 2918300090
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
2 · Eye Irrit. 2
REACH Registrations
Active
PPE
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
wgk
3
tsca
TSCA listed
ridadr
UN 3261 8/PG 2
hs_code
2918300090
risk_code
34
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
C
safety_code
26-36/37/39-45
hazard_class
8
Storage Class
11 - Combustible Solids
packing_group
II
Hazard statements
H319
REACH Registrations
Active
Hazard Classifications
Eye Irrit. 2
Precautionary statements
P264-P280-P305+P351+P338-P337+P313

Upstream & downstream products

Upstream raw materials

pyridoxaminePyridoxal hydrochloride2-dihydroxyphosphinoyloxyacrylic acidL-Aspartic acidDL-Aspartic acidD(+)-Malic acid

Downstream products

Diethyl oxalacetateCitric aciddimethyl 2-oxobutanedioate4-Pyrimidinol
Additional notes · 1 item

DefinitionChEBI: Oxaloacetic acid is an oxodicarboxylic acid that is succinic acid bearing a single oxo group. It has a role as a metabolite and a geroprotector. It is an oxo dicarboxylic acid and a C4-dicarboxylic acid. It is functionally related to a succinic acid. It is a conjugate acid of an oxaloacetate(2-).