Adenosine Impurity 23 CAS 143234-85-9
| CAS No. | 143234-85-9 |
| Molecular Formula | C11H13BrN2O5 |
| Molecular Weight | 333.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Adenosine Impurity 23 (CAS 143234-85-9), a pharmacopoeial impurity reference standard (molecular formula C11H13BrN2O5, MW 333.14 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H13BrN2O5, Adenosine Impurity 23 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.14 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).
As a certified reference material (CRM), Adenosine Impurity 23 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 | C11H13BrN2O5 |
| Molecular Weight | 333.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Adenosine Standards
- Adenosine Impurity 19 (CAS 166735-83-7)
- Adenosine Impurity 20 (CAS 77530-02-0)
- Adenosine Related Compound 4 (CAS 5143-04-4)
- Adenosine 2,3-Cyclic Phosphate Triethylammonium Salt (CAS 634-01-5)
- Adenosine Cyclophosphate Impurity 1 (CAS 32465-18-2)
- Adenosine Cyclophosphate Impurity 2 (CAS 24493-93-4)
- Adenosine Cyclophosphate Impurity 3 (CAS 63963-62-2)
- Adenosine Cyclophosphate impurity 4 (CAS CATO-C4X-31734)
Recommended Standards
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- Brivudine Impurity 12 (CAS CATO-C4X-275812)
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- Alpha - (E) - Bromofloxacin (CAS 78731-55-2)
- Isosorbide Dinitrate 19 (CAS 1932354-37-4)
- Ensifentrine impurity 45 (CAS 3088358-10-2)
- Urapidil Impurity 69 (CAS 117525-95-8)
- Methyl (R)-6-hydroxy-1,2,3,4-tetrahydroisoquinoline-1-carboxylate (CAS 2089671-74-7)
- trans-N1,N2-Dimethylcyclohexane-1,2-diamine (CAS 67579-81-1)
- (2,6-Dichloro-3-hydroxyphenyl)boronic acid (CAS 851756-56-4)
- 2-((Diethylamino)carbonyl)benzoic acid (CAS 4166-52-3)
- 1-(Benzo[d]thiazol-5-yl)ethan-1-one (CAS 90347-90-3)
- 1-Ethyl-3,3-dimethyl-2-methyleneindoline (CAS 73718-62-4)
- KALA Amphipathic Peptide (CAS 187987-64-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com