Oxonic Acid Impurity 3 CAS 60301-55-5
| CAS No. | 60301-55-5 |
| Molecular Formula | C3H3N3O2 |
| Molecular Weight | 113.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Oxonic Acid Impurity 3 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 113.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Oxonic Acid Impurity 3 (CAS 60301-55-5) is a certified pharmaceutical impurity reference standard with the molecular formula C3H3N3O2 and a molecular weight of 113.07 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Oxonic Acid Impurity 3 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.
Physical & Chemical Properties
| Molecular Formula | C3H3N3O2 |
| Molecular Weight | 113.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1974 |
| Nitrogen Atoms | 3 |
Related Oxonic Standards
Recommended Standards
- 2-Nitroimidazole (CAS 527-73-1)
- Ribavirin Impurity 40 (CAS 39215-01-5)
- (S)-1,1,1-Trifluoropropan-2-amine (CAS 125278-10-6)
- Ribavirin EP Impurity C (CAS 4928-87-4)
- Acipimox Impurity 11 (CAS 6890-38-6)
- Caspofungin Impurity C (CAS 251095-73-5)
- Icatibant Impurity 3 TFA salt (CAS CATO-C4X-23613)
- 3-(M-tolyl)pyrrolidine-2-carboxylic acid (CAS 1542525-95-0)
- 2-Azidoethanol (CAS 1517-05-1)
- 3-methyl-5-(piperazin-1-ylmethyl)-1,2,4-oxadiazole hydrochloride (CAS 1803580-93-9)
- 1-(4-Bromophenyl)-2,2-difluoroethyl diethyl phosphate (CAS 2108899-06-3)
- 5-Fluoro-1H-pyrazolo[3,4-c]pyridine (CAS 1260664-19-4)
- 3-Chloro-N~2~,N~2~-dipropyl-1,2-benzenediamine (CAS 926210-36-8)
- SV40 Nuclear Transport Signal Peptide Analog (CAS 104914-40-1)
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