Quisqualic Acid CAS 52809-07-1
| CAS No. | 52809-07-1 |
| Molecular Formula | C5H7N3O5 |
| Molecular Weight | 189.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 189.13 g/mol gives Quisqualic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Quisqualic Acid (CAS 52809-07-1), molecular formula C5H7N3O5 and molecular weight 189.13 g/mol, is a CATO reference standard with documented purity and traceability.
Quisqualic Acid (C5H7N3O5) contains a carbohydrate-derived structure, an amide group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H7N3O5 |
| Molecular Weight | 189.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 3 |
Recommended Standards
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- 7-Fluoro-4-oxo-4H-chromene-3-carbonitrile (CAS 1159978-71-8)
- 4-(difluoromethoxy)cyclohexanecarbaldehyde (CAS 2306265-09-6)
- Methyl 2-[(2-benzoylphenyl)amino]-3-(4-hydroxyphenyl)propanoate (CAS 196810-09-0)
- 2-Amino-N-ethyl-4-methylpentanamide (CAS 859194-78-8)
- 1-(1,4-Dioxan-2-yl)ethan-1-one (CAS 15957-23-0)
- 2-(chloromethyl)-5-(4,5,6,7-tetrahydro-1-benzothien-2-yl)-1,3,4-oxadiazole (CAS 796106-53-1)
- 3-Hydrazinyl-5-(methylthio)-1H-pyrazole-4-carboxylic acid (CAS 117736-58-0)
- (R)-2-(4-(Trifluoromethyl)benzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS 1049728-08-6)
- 3-(4-Fluorophenyl)piperidine hydrochloride (CAS 1106940-94-6)
- 2,6-Diaminopyrimidine-4-carbaldehyde (CAS 109138-03-6)
- Insulin Glulisine (CAS 207748-29-6)
Why CATO?
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