5-Isobutyl-4-methyl-1H-pyrazol-3(2H)-one CAS 205813-75-8
| CAS No. | 205813-75-8 |
| Molecular Formula | C8H14N2O |
| Molecular Weight | 154.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Isobutyl-4-methyl-1H-pyrazol-3(2H)-one (CAS 205813-75-8), molecular formula C8H14N2O and molecular weight 154.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Isobutyl-4-methyl-1H-pyrazol-3(2H)-one (C8H14N2O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 154.21 g/mol, it falls into the medium-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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Isobutyl-4-methyl-1H-pyrazol-3(2H)-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 | C8H14N2O |
| Molecular Weight | 154.21 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 2 |
Related Isobutyl Standards
- (1-Isobutyl-1H-1,2,3-triazol-5-yl)methanamine (CAS 1267860-89-8)
- 1-Isobutyl-3-methylpyrazol-5(4H)-one (CAS 401465-31-4)
- 1-Isobutyl-N-methyl-1H-1,2,4-triazol-5-amine (CAS 765841-87-0)
- 2-Isobutyl-5-methyl-1H-pyrazol-3(2H)-one (CAS 857989-07-2)
- 5-Isobutyl-N-methylisoxazol-3-amine (CAS 55809-50-2)
- N-Isobutyl-1-methyl-1H-1,2,4-triazol-5-amine (CAS 760115-72-8)
- N-Isobutyl-5-methylisoxazol-4-amine (CAS 602306-52-5)
- 226930-88-7 (1-Isobutyl-1H-imidazol-5-yl)methanol DTXSID60470583 (CAS 226930-88-7)
Recommended Standards
- 5-Imino-N,N,2,2-tetramethyl-2,5-dihydrofuran-3-amine (CAS 953076-71-6)
- 5-Ethyl-N,N,4-trimethyl-4H-1,2,4-triazol-3-amine (CAS 733698-87-8)
- 5-Isopropyl-1-methyl-1H-pyrazole-3,4-diamine (CAS 199342-18-2)
- 5-Acetyl-2,2-dimethylcyclopentan-1-one (CAS 2570-70-9)
- tert-Butyl N-[cis-3-hydroxypiperidin-4-yl]carbamate (CAS 1787258-87-0)
- 2-(Pyrrolidin-1-yl)pyrimidine-5-boronic acid pinacol ester (CAS 1015242-07-5)
- tert-butyl 6-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazole-1-carboxylate (CAS 631912-39-5)
- 7-Phenoxy-1,2,3,4-tetrahydroquinoline (CAS 874498-69-8)
- tert-Butyl 3-methyl-6,7-dihydroisoxazolo[4,5-c]pyridine-5(4H)-carboxylate (CAS 2241014-04-8)
- ONO 8809 (CAS 123288-47-1)
- 1-(2,6-Difluorophenyl)cyclopropanamine (CAS 1314672-24-6)
- 3-Amino-N-(5-oxo-1-(2,4,6-trichlorophenyl)-4,5-dihydro-1H-pyrazol-3-yl)benzamide (CAS 40567-18-8)
- 1-(5-Cyclobutyl-1,2,4-oxadiazol-3-yl)-N-methylmethanamine (CAS 915923-56-7)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
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