4-(3,5-Dioxo-1,2,4-triazolidin-4-yl)benzoic acid CAS 52203-73-3
| CAS No. | 52203-73-3 |
| Molecular Formula | C9H7N3O4 |
| Molecular Weight | 221.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(3,5-Dioxo-1,2,4-triazolidin-4-yl)benzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4-(3,5-Dioxo-1,2,4-triazolidin-4-yl)benzoic acid (CAS 52203-73-3), molecular formula C9H7N3O4 and molecular weight 221.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7N3O4, 4-(3,5-Dioxo-1,2,4-triazolidin-4-yl)benzoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7N3O4 |
| Molecular Weight | 221.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
Related Dioxo Standards
- 1-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-7-carboxylic acid (CAS 1000933-15-2)
- 4-(3,5-Dioxo-1,2,4-triazolidin-1-yl)benzoic acid (CAS 1087784-49-3)
- 7-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 116081-01-7)
- (S)-2-(5,7-Dioxo-5,7-dihydro-6h-pyrrolo[3,4-b]pyrazin-6-yl)propanoic acid (CAS 126310-27-8)
- 3-{5,7-dioxo-5h,6h,7h-pyrrolo[3,4-b]pyrazin-6-yl}propanoic acid (CAS 126310-28-9)
- 2-{5,7-dioxo-5H,6H,7H-pyrrolo[3,4-b]pyrazin-6-yl}propanoic acid (CAS 126452-62-8)
- Methyl 2,4-dioxo-1,2,3,4-tetrahydropyrido[3,2-d]pyrimidine-6-carboxylate (CAS 1956332-21-0)
- 1-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 449210-08-6)
Recommended Standards
- 4-(2-Nitrophenyl)-4-oxobut-2-enoic acid (CAS 90800-54-7)
- 4,5,7-Trihydroxyquinoline-3-carboxylic acid (CAS 79364-28-6)
- 4-(2-nitrophenyl)-2-oxobut-3-enoic acid (CAS 72323-79-6)
- 4,5,8-Trihydroxyquinoline-3-carboxylic acid (CAS 79364-27-5)
- 7-Bromo-5-chloroquinazolin-6-amine (CAS 2403843-25-2)
- 2-(((2-Nitrophenyl)thio)amino)propanoic acid (CAS 5879-39-0)
- Direct Blue 15 (CAS 2429-74-5)
- tert-Butyl 2-(2,2,2-trifluoroethyl)piperazine-1-carboxylate (CAS 886766-22-9)
- 4-((2,6-Difluorophenoxy)methyl)piperidine hydrochloride (CAS 614731-45-2)
- Broxyquinoline-API (CAS 521-74-4)
- 3- Cyclopropyl- 2- propenoic Acid Ethyl Ester (CAS 5808-99-1)
- 4-Phenoxybenzenethiol (CAS 38778-05-1)
- 3-(4-Chloro-3-nitrophenyl)-5-methyl-1,2,4-oxadiazole (CAS 92453-47-9)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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