5-(3-Methylbutyl)-1h-pyrazole-3-carboxylic acid ethyl ester CAS 856256-91-2
| CAS No. | 856256-91-2 |
| Molecular Formula | C11H18N2O2 |
| Molecular Weight | 210.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(3-Methylbutyl)-1h-pyrazole-3-carboxylic acid ethyl ester is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(3-Methylbutyl)-1h-pyrazole-3-carboxylic acid ethyl ester (CAS 856256-91-2), molecular formula C11H18N2O2 and molecular weight 210.27 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(3-Methylbutyl)-1h-pyrazole-3-carboxylic acid ethyl ester (C11H18N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 210.27 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-(3-Methylbutyl)-1h-pyrazole-3-carboxylic acid ethyl ester 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 | C11H18N2O2 |
| Molecular Weight | 210.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Methylbutyl Standards
- 5-Ethyl-1-(3-methylbutyl)-1h-pyrazole-4-carboxylic acid (CAS 1247986-13-5)
- n-(2-Methylbutyl)-3-(methylthio)aniline (CAS 1036452-74-0)
- n-(2-Methylbutyl)-2-(methylthio)aniline (CAS 1154300-03-4)
- n-(2-Methylbutyl)-3-nitroaniline (CAS 1157489-62-7)
- 2-(4-((2-Methylbutyl)amino)phenyl)ethan-1-ol (CAS 1249386-48-8)
- 2-((2-Methylbutyl)amino)-2-phenylethan-1-ol (CAS 1339521-56-0)
- n-(2-Methylbutyl)benzo[d][1,3]dioxol-5-amine (CAS 1042596-62-2)
- 4-((2-Methylbutyl)amino)benzamide (CAS 1038280-13-5)
Recommended Standards
- 4-Methoxyadamantane-1-carboxylic acid (CAS 2034153-44-9)
- 5,5-Dimethyl-5,10-dihydrobenzo[b][1,8]naphthyridine (CAS 90903-64-3)
- 4-Isopropyldibenzo[b,d]furan (CAS 60715-43-7)
- 5-Butyl-3-ethyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 91216-49-8)
- 4’-Bromobiphenyl-4-carbaldehyde (CAS 50670-58-1)
- 3-Methyl-N-(4-(trifluoromethyl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamide (CAS 1956318-60-7)
- N-((2-methoxypyridin-4-yl)methyl)-2-methylpropan-1-amine (CAS 1248482-21-4)
- 4-Benzylpiperidine-1-carboximidamide hydroiodide (CAS 849776-40-5)
- Menaquinone Impurity 12 (CAS 3790-76-9)
- CART (55-76) (rat) (CAS 1815618-15-5)
- 7,8-Dimethoxy-1,3,4-trimethyl-1,3-dihydrofuro[3,4-c]quinoline (CAS 88484-98-4)
- N-cyclohexyl-2-(3-formyl-1H-indol-1-yl)acetamide (CAS 592546-44-6)
- 7-Fluoro-6-iodoquinazolin-4(3H)-one (CAS 231278-10-7)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
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