Basic information
- Standard SMILES
N[C@@H](Cn1oc(=O)[nH]c1=O)C(=O)O- InChIKey
ASNFTDCKZKHJSW-REOHCLBHSA-N- Molecular formula
- C5H7N3O5
- Average molar mass
- 189.13 g/mol
- Monoisotopic mass
- 189.03857032
Overview
Quisqualic acid is a non-proteinogenic alpha-amino acid.
Names & identifiers
- Preferred name
- Quisqualic Acid
- IUPAC
- (2S)-2-amino-3-(3,5-dioxo-1,2,4-oxadiazolidin-2-yl)propanoic acid
- English name
- Quisqualic acid
- Molecular formula
- C5H7N3O5
- Molecular weight
- 189.13
Names & synonyms
Show more names
Database identifiers
- CAS
52809-07-1- PubChem CID
- 40539
- DTXSID
DTXSID20896927- ChEMBL
CHEMBL168279、CHEMBL279956- ChEBI
CHEBI:8734- UNII
- 8OC22C1B99
- EC Number
- 637-070-2
- Nikkaji
- J9.726H
Properties
Computed structural properties
- XLogP
- -3.9
- Topological polar surface area
- 122 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 3
- Heavy atoms
- 13
- Formal charge
- 0
- Complexity
- 265
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 185 · 185-187°C dec.
- alpha
- 20 · D20 +17.0° (c = 2.0 in 6M HCl)
- Boiling point
- 324.36 °C · 324.36°C (rough estimate)
- Density
- 1.6649 · 1.6649 (rough estimate)
- refractive index
- 1.619 · 1.6190 (estimate)
- storage temp.
- 2 · 2-8°C
- solubility
- 4 OH · NH4OH 1 M: 20 mg/mL, clear, colorless
- pka
- 2.12 · 2.12±0.10(Predicted)
- form
- powder
- color
- white to off-white
- Water Solubility
- Soluble in ethanol, water. Insoluble in organic solvents.
- Merck
- 13 · 13,8177
- BRN
- 1078734 · 1078734
- Stability
- Stable. Incompatible with strong oxidizing agents.
- InChI
- InChI=1/C5H7N3O5/c6-2(3(9)10)1-8-4(11)7-5(12)13-8/h2H,1,6H2,(H,9,10)(H,7,11,12)/t2-/s3
- InChIKey
- ASNFTDCKZKHJSW-NVFNTWQMNA-N
- SMILES
- N1(C[C@H](N)C(=O)O)OC(=O)NC1=O |&1:2,r|
- FDA UNII
- 8 OC22C1B99 · 8OC22C1B99
- UNSPSC Code
- 12352106 · 12352106
- NACRES
- 32 · NA.32
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302-H312-H332
- Precautionary statements
- 261 · P261-P280h-P301+P312a-P304+P340-P321-P501a
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xn
- Risk Statements
- 20 · 20/21/22
- Safety Statements
- 26 · 26-36
- WGK Germany
- 3 · 3
- F
- 10 · 10
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
GHS classification
GHS Classification
Warning
H302+H312+H332 (41.2%): Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]
P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P321, P330, P362+P364, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 68 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Safety data
- F
- 10
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- risk_code
- 20/21/22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn
- safety_code
- 26-36
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H302-H312-H332
- Precautionary statements
- P261-P280h-P301+P312a-P304+P340-P321-P501a
Chemistry & industry
Pharmacology
Applications
DescriptionL-Quisqualic acid is a natural analog of glutamate that acts as an agonist at AMPA-selective and metabotropic glutamate receptors (EC50s = 170, 10, 40, and 29 nM at GluR-A, mGluR1, mGluR3, and mGluR5, respectively), as well as the ionotropic kainate receptor (GRIK4; Ki = 6.43 nM). L-Quisqualic acid is used to study receptor dynamics and as an excitotoxin to selectively destroy neurons in the brain or spinal cord.
UsesAn amino acid that is able to function as an agonist at multiple excitatory amino acid receptor substrates in the central nervous system. It also has high affinity for the kainate, AMPA and the metabotropic receptors. Inhibits the Ca2+/Cl-dependent glutamic acid uptake system in brain synaptic plasma membrane preparations.
UsesQuisqualic acid has been used to test ligand-gated receptors in spiral ganglion neurons.
UsesQuisqualic acid is used to differentiate between mGluR-1 and mGluR-4. L-Quisqualic acid is an activator of GluR.
General DescriptionQuisqualate/ Quisqualic acid is obtained from the fruits and seeds of Quisqualis chinensis. It is an agonist at two subsets of excitatory amino acid receptors metabotropic receptors that indirectly mediate calcium mobilization from intracellular stores and, ionotropic receptors that directly control membrane channels. L-quisqualic acid is an agonist of the neurotransmitter L-glutamate.
Suppliers50 total
Additional notes
DefinitionChEBI: Quisqualic acid is a non-proteinogenic alpha-amino acid.
Related reactions
Linked notes
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