Doxofylline Impurity 32 CAS 633296-51-2
| CAS No. | 633296-51-2 |
| Molecular Formula | C8H11N3O3 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 197.19 g/mol gives Doxofylline Impurity 32 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Doxofylline Impurity 32 (CAS 633296-51-2, C8H11N3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Doxofylline Impurity 32 (C8H11N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 197.19 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).
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.
CATO manufactures Doxofylline Impurity 32 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H11N3O3 |
| Molecular Weight | 197.19 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
Related Doxofylline Standards
- Doxofylline Impurity 42 (CAS 56548-04-0)
- Doxofylline Impurity 22 (CAS 6632-68-4)
- Doxofylline Impurity 18 (CAS 42772-85-0)
- Doxofylline Impurity 2 (CAS 5614-53-9)
- Doxofylline Impurity 9 (CAS CATO-C4X-15139)
- Doxofylline Impurity 33 (CAS CATO-C4X-151333)
- Doxofylline Impurity 35 (CAS CATO-C4X-151335)
- Doxofylline Impurity 10 (CAS CATO-C4X-151310)
Recommended Standards
- 5-Acetamido-1H-pyrazole-4-carboxylic acid ethyl ester (CAS CATO-C4X-145810)
- Levodopa Impurity 22 (CAS 28900-64-3)
- Sildenafil Impurity 99 (CAS CATO-C4X-112899)
- Levodopa EP Impurity D (CAS 5796-17-8)
- Salmeterol EP Impurity A Formate Salt (CAS CATO-C4X-105019)
- Sunitinib Impurity 66 (CAS CATO-C4X-133366)
- Fluoxetine Impurity 4 (CAS 402-45-9)
- 2-((4-Bromo-N-methylphenyl)sulfonamido)acetamide (CAS 904517-36-8)
- N-(2,4-Dimethylphenyl)Formamide (CAS 60397-77-5)
- 5-Boc-3-iodo-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridine (CAS 661487-17-8)
- 4-methoxy-3-nitrophenyl acetate (CAS 39653-87-7)
- Rosuvastatin EP Impurity M(Sodium Salt) (CAS 847849-66-5(free base))
- 4-Allyl-1-methoxy-2-propoxybenzene (CAS 1443336-36-4)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com