Huperzine A Impurity 4 CAS CATO-C4X-31234
| CAS No. | CATO-C4X-31234 |
| Molecular Formula | C31H34N4O3 |
| Molecular Weight | 510.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C31H34N4O3, Huperzine A Impurity 4 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 510.63 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).
CATO supplies Huperzine A Impurity 4 (CAS CATO-C4X-31234), a pharmacopoeial impurity reference standard (molecular formula C31H34N4O3, MW 510.63 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C31H34N4O3 |
| Molecular Weight | 510.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Huperzine Standards
- Huperzine A Impurity 9 (CAS CATO-C4X-31239)
- Huperzine A Impurity 5 (CAS CATO-C4X-31235)
- Huperzine A Impurity 10 (CAS CATO-C4X-312310)
- Huperzine A Impurity 3 (CAS CATO-C4X-31233)
- Huperzine A Impurity 2 (CAS CATO-C4X-31232)
- Huperzine A Impurity 8 (CAS CATO-C4X-31238)
- Huperzine A Impurity 1 (CAS CATO-C4X-31231)
- Huperzine A Impurity 6 (CAS CATO-C4X-31236)
Recommended Standards
- Carfilzomib Impurity 85 (CAS CATO-C4X-102285)
- Atrasentan Impurity 158 (CAS 2469258-87-3)
- FGTI-2734 (CAS 1247018-19-4)
- Atrasentan Impurity 159 (2S,3S,4R) (CAS 173864-34-1)
- Verapamil EP Impurity D (CAS 36770-74-8)
- Alfacalcidol Impurity 24 (CAS CATO-C4X-139324)
- Oclacitinib Impurity 19 (CAS 2124221-13-0)
- 3-(3-Methylphenoxy)phenylboronic acid (CAS 2377609-33-9)
- H-Trp-Tyr-OH (CAS 19653-76-0)
- N-(3-nitrophenyl)-1-(2-(pyrrolidin-1-yl)thiazol-5-yl)methanimine (CAS 860788-99-4)
- Ethyl 4-bromo-2,3,6-trifluorobenzoate (CAS 773139-40-5)
- 2-(((4-Bromophenyl)imino)methyl)phenol (CAS 886-34-0)
- 8-Oxa-2-azaspiro[4.5]decane (CAS 310-93-0)
- Custom peptides (CAS CATO-CPTD788509)
Why CATO?
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