Isoxanthopterin CAS 529-69-1
| CAS No. | 529-69-1 |
| Molecular Formula | C6H5N5O2 |
| Molecular Weight | 179.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Isoxanthopterin.
Isoxanthopterin (CAS 529-69-1), molecular formula C6H5N5O2 and molecular weight 179.14 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Isoxanthopterin (C6H5N5O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 179.14 g/mol, it falls into the medium-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Isoxanthopterin 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 | C6H5N5O2 |
| Molecular Weight | 179.14 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 5 |
Recommended Standards
- Ethyl-(5-trifluoromethyl-2H-pyrazol-3-yl)-amine (CAS 898540-00-6)
- N,N-Dimethyl-3-(trifluoromethyl)-1H-pyrazol-5-amine (CAS 251658-53-4)
- 8-Methyl-6-nitrotetrazolo[1,5-a]pyridine (CAS 254429-02-2)
- N-Hydroxy-7H-purine-6-carboxamide (CAS 500864-05-1)
- 7-Methyl-5H-pyrrolo[3,2-d]pyrimidin-4-ol (CAS 71435-37-5)
- 5-(4-Isopropylphenyl)-1,3,4-oxadiazol-2-amine (CAS 49579-79-5)
- 1-BRomo-2-cyclobutoxy-benzene (CAS 1350640-81-1)
- 5'-Chloro-5'-deoxyadenosine (CAS 892-48-8)
- 1-[(2-Chlorophenyl)methyl]-6-(3,4-dichlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 252059-61-3)
- 3-Chloro-5-fluoro-3-(2-methylphenyl)propiophenone (CAS 898789-88-3)
- 1,2,3,6,8-Pentachloronaphthalene (CAS 150224-23-0)
- 2-Bromo-5-(difluoromethyl)-3-(trifluoromethyl)isonicotinonitrile (CAS 1806051-55-7)
- 1，3-Dihydroxybenzene-d6 (CAS 70938-00-0)
- Heptapeptide-6 (CAS CATO-CPTD788823)
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