3-(1-methyl-1H-pyrazol-5-yl)cyclopentan-1-one CAS 1340410-90-3
| CAS No. | 1340410-90-3 |
| Molecular Formula | C9H12N2O |
| Molecular Weight | 164.20 g/mol |
| 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.
3-(1-methyl-1H-pyrazol-5-yl)cyclopentan-1-one (CAS 1340410-90-3), molecular formula C9H12N2O and molecular weight 164.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H12N2O, 3-(1-methyl-1H-pyrazol-5-yl)cyclopentan-1-one 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 164.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 3-(1-methyl-1H-pyrazol-5-yl)cyclopentan-1-one 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 | C9H12N2O |
| Molecular Weight | 164.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 2-((Azetidin-3-yloxy)methyl)pyridine (CAS 1340149-75-8)
- 3-((Azetidin-3-yloxy)methyl)pyridine (CAS 1340467-82-4)
- N-(Pyridin-2-ylmethyl)oxetan-3-amine (CAS 1339602-84-4)
- 1-(Cyclopropylmethyl)-5-oxopyrrolidine-3-carbonitrile (CAS 1340521-87-0)
- 17-Hydroxy heptadecanoic acid (CAS 13099-34-8)
- [1,1':3',1''-Terphenyl]-4-amine (CAS 5728-67-6)
- Sodium ((2R,3S,4R,5R)-5-(6-chloro-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl phosphate (CAS 34258-06-5)
- Tert-butyl (2-oxospiro[3.5]Nonan-7-yl)carbamate (CAS 1440962-35-5)
- tert-Butyl 1,2,3,4-tetrahydroisoquinoline-3-carboxylate hydrochloride (CAS 82716-90-3)
- 4-(3-Formylphenoxy)butanoic acid (CAS 174884-10-7)
- (1R,2S,4S)-tert-Butyl 2-hydroxy-7-azabicyclo[2.2.1]heptane-7-carboxylate (CAS 154905-39-2)
- N-phenyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-[1,1':3',1''-terphenyl]-5'-amine (CAS 1373131-60-2)
- 2-Bromo-3-cyano-5-(difluoromethyl)isonicotinic acid (CAS 1806999-30-3)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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