2-Methyl-6,7-dihydro-5H-cyclopenta[b]pyridine CAS 25536-14-5
| CAS No. | 25536-14-5 |
| Molecular Formula | C16H29N5O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-Methyl-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 25536-14-5), a certified reference material (molecular formula C16H29N5O4Br, MW 435.34 g/mol) for analytical method development and quality control.
Structurally, 2-Methyl-6,7-dihydro-5H-cyclopenta[b]pyridine (C16H29N5O4Br) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 435.34 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-Methyl-6,7-dihydro-5H-cyclopenta[b]pyridine 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 | C16H29N5O4 2*Br |
| Molecular Weight | 435.34 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
Related Methyl Standards
- 3-(3,6-Dihydro-2h-pyran-4-yl)benzoic acid (CAS 1000016-95-4)
- 1,7-Dihydro-dipyrrolo[2,3-b:3',2'-e]pyridine (CAS 1000342-79-9)
- Methyl 9,10-Dihydro-9-oxoacridine-4-carboxylate (CAS 100039-03-0)
- 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)propan-1-ol (CAS 1000540-71-5)
- 2,5-Dihydro-1-(2-nitrophenyl)-5-oxo-1H-1,2,4-triazole-3-carboxylic acid dimethylamide (CAS 1000574-24-2)
- 5-(1,2-Dihydro-[1,1':4',1''-terphenyl]-2-yl)-3H-1,2,4-triazol-3-one (CAS 1000575-71-2)
- Ethyl 2,5-dihydro-5-oxo-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-65-7)
- 2,5-Dihydro-5-oxo-1-phenyl-1H-1,2,4-triazole-3-carboxylic acid (2-chlorophenyl)amide (CAS 1000576-93-1)
Recommended Standards
- 2-Bromo-4,6-bis(trifluoromethyl)benzaldehyde (CAS 1415130-39-0)
- 3-Cyclohexylpropyl-4-O-(a-D-glucopyranosyl)-b-D-glucopyranoside (CAS 181135-58-0)
- Z-Phe-Val-OH (CAS 13123-00-7)
- 3-(2-Bromo-4-(trifluoromethyl)benzyl)oxetane (CAS 1822801-87-5)
- 2-((4-Iodophenyl)carbamoyl)cyclohexane-1-carboxylic acid (CAS 250725-70-3)
- Olopatadine Impurity 14 (CAS 1628639-06-4（free base）)
- 3-[(quinazolin-4-yl)amino]propan-1-ol (CAS 446829-17-0)
- 5-Benzyl-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid (CAS 790239-65-5)
- 1-(2-(Aminomethyl)phenyl)-2,2,2-trifluoroethan-1-amine (CAS 886368-78-1)
- FMRF-Like Peptide from snail Helix aspersa (CAS 98495-35-3)
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