2-(3-Methoxy-4-nitro-1h-pyrazol-1-yl)ethan-1-ol CAS 1006950-52-2
| CAS No. | 1006950-52-2 |
| Molecular Formula | C6H9N3O4 |
| Molecular Weight | 187.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(3-Methoxy-4-nitro-1h-pyrazol-1-yl)ethan-1-ol.
2-(3-Methoxy-4-nitro-1h-pyrazol-1-yl)ethan-1-ol (CAS 1006950-52-2) is a high-purity analytical reference standard with the molecular formula C6H9N3O4 and a molecular weight of 187.15 g/mol.
The molecular framework of 2-(3-Methoxy-4-nitro-1h-pyrazol-1-yl)ethan-1-ol (C6H9N3O4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H9N3O4 |
| Molecular Weight | 187.15 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1988 |
| Nitrogen Atoms | 3 |
Related Methoxy Standards
- 4-Methoxy-1H-pyrrole-1,3(2H,5H)-dicarboxylic acid (CAS 857207-62-6)
- 6-methoxy-5-nitropyrimidine-4-thiol (CAS 7154-33-8)
- 1-Methoxy-4-isoquinolinecarboxaldehyde (CAS 1005772-69-9)
- Methyl 1-methoxy-4-oxopiperidine-3-carboxylate (CAS 100911-31-7)
- 7-Methoxy-3-oxo-2,3-dihydro-1H-indene-4-carbonitrile (CAS 1260009-78-6)
- 2-Methoxy-4-nitrobenzaldehyde (CAS 136507-15-8)
- 6-Methoxy-3-quinolinecarboxaldehyde (CAS 13669-60-8)
- 3-Methoxy-4-nitro-1h-pyrazole-5-carboxylic acid (CAS 161235-54-7)
Recommended Standards
- 4-Cyano-7H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1000340-46-4)
- 6-Cyanoimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1019021-71-6)
- 3-(3,5-Dioxomorpholino)propanoic acid (CAS 1000339-14-9)
- 7-Cyanoimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1019022-01-5)
- 3-(Hydroxymethyl)-N-methylbenzamide (CAS 1373162-20-9)
- Methyl 3-(chlorothio)benzoate (CAS 88489-85-4)
- N1,N4-diphenylterephthalamide (CAS 7154-31-6)
- 3-Iodo-N-isopropylaniline (CAS 1152562-39-4)
- 2-(2-(Difluoromethyl)-6-methoxy-5-nitropyridin-3-yl)acetonitrile (CAS 1805606-23-8)
- 1-Cyano-2-(indolin-2-ylidene)ethyl acetate (CAS 61417-40-1)
- (2Z)-3-[(4-Fluorophenyl)amino]-2-[4-(3-fluoropropoxy)phenyl]prop-2-enenitrile (CAS 477888-38-3)
- Selexipag Impurity 8 (CAS CATO-C4X-19618)
- 3,5-Dichloro-4-methylmandelic acid (CAS 1804896-70-5)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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