2-{4-[5-(2,5-dimethoxyphenyl)-1H-pyrazol-3-yl]piperidin-1-yl}-3-nitropyridine CAS 1026077-65-5
| CAS No. | 1026077-65-5 |
| Molecular Formula | C21H23N5O4 |
| Molecular Weight | 409.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-{4-[5-(2,5-dimethoxyphenyl)-1H-pyrazol-3-yl]piperidin-1-yl}-3-nitropyridine (CAS 1026077-65-5), molecular formula C21H23N5O4 and molecular weight 409.44 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-{4-[5-(2,5-dimethoxyphenyl)-1H-pyrazol-3-yl]piperidin-1-yl}-3-nitropyridine (C21H23N5O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 409.44 g/mol, it falls into the moderately-high-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).
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 | C21H23N5O4 |
| Molecular Weight | 409.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 5 |
Related dimethoxyphenyl Standards
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- N-(3,4-Dimethoxyphenyl)-5-methyl-12-oxo-5H,5aH,6H,7H,8H,9H,10H,12H-azepino[2,1-b]quinazoline-3-carboxamide (CAS 1775408-74-6)
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- n-[(2,4-dimethoxyphenyl)methyl]-3-iodo-1h-pyrazolo[4,3-c]pyridin-4-amine (CAS 2056025-15-9)
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- 4-[2-(2,6-Dimethoxyphenyl)-7-methyl-1H-benzimidazol-5-yl]-N-methyl-1-piperidineethanamine (CAS 912970-67-3)
- 4-(3,4-Dimethoxyphenyl)-6-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-3,4-dihydropyrimidine-2(1H)-thione (CAS 892301-74-5)
Recommended Standards
- Fmoc-Glu-allyl ester (CAS 144120-54-7)
- (S)-2-(((Benzyloxy)carbonyl)amino)-3-(1-((benzyloxy)methyl)-1H-imidazol-5-yl)propanoic acid (CAS 105578-20-9)
- Fmoc-D-Glu(allyl ester)-OH (CAS 204251-33-2)
- exo-IWR-1 (CAS 1127442-87-8)
- (2R)-2-FLuoropropan-1-ol (CAS 876747-18-1)
- Ethyl 2,4-difluoro-5-methylbenzoate (CAS 1379322-70-9)
- 4-Bromoisoquinoline-5-sulfonyl chloride hydrochloride (CAS 1203176-80-0)
- Linagliptin Impurity 49 (CAS CATO-C4X-110149)
- 2-((1H-Imidazol-1-yl)methyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 150810-16-5)
- Methyl 4-Chloro-3-fluorobenzoate (CAS 206362-87-0)
- 2-(4-Chlorophenyl)-5-phenyl-3-(trifluoromethyl)benzofuran (CAS 821770-02-9)
- 3-(1,2-Dimethyl-1H-indol-3-yl)-3-oxopropanenitrile (CAS 1403567-82-7)
- Tert-butyl methyl(p-tolyl)carbamate (CAS 693803-44-0)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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