(1H-Pyrazol-4-yl)-acetic acid ethyl ester hydrochloride CAS 2331259-78-8
| CAS No. | 2331259-78-8 |
| Molecular Formula | C7H10N2O2 |
| 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 (1H-Pyrazol-4-yl)-acetic acid ethyl ester hydrochloride (CAS 2331259-78-8), a certified reference material (molecular formula C7H10N2O2HCl, MW 190.63 g/mol) for analytical method development and quality control.
(1H-Pyrazol-4-yl)-acetic acid ethyl ester hydrochloride (C7H10N2O2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (1H-Pyrazol-4-yl)-acetic acid ethyl ester hydrochloride 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 | C7H10N2O2 HCl |
| Molecular Weight | 190.63 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related H Standards
- 3-(1H-Pyrazol-4-yl)benzoic acid (CAS 1002535-21-8)
- 1-(3-(1H-Pyrazol-1-yl)phenyl)-N,N-dimethylmethanamine (CAS 1003993-34-7)
- 3-(4-(1H-Pyrazol-1-yl)phenyl)-6-(methylthio)pyridazine (CAS 1004184-50-2)
- 1-((1h-Pyrazol-1-yl)methyl)-1h-pyrazole-3-carbohydrazide (CAS 1004192-91-9)
- 2-((6-(4-(1H-Pyrazol-1-yl)phenyl)pyridazin-3-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 1004439-73-9)
- 3-(1-(1H-Pyrazol-4-yl)propyl)-2-thioxoimidazolidin-4-one (CAS 1004643-56-4)
- 1-(5-methyl-pyraZol-1-yl)-propan-2-one (CAS 1004643-66-6)
- 1-((1H-pyrazol-1-yl)methyl)-1H-pyrazole-3-carboxylic acid (CAS 1005631-12-8)
Recommended Standards
- 4-Allyl-2-butoxy-1-methoxybenzene (CAS 1443349-19-6)
- 3-(2-Fluorophenyl)-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 896682-74-9)
- 3-(2-Chloro-4-(2-methoxy-2-oxoethyl)phenyl)-5-methylisoxazole-4-carboxylic acid (CAS 870194-63-1)
- N,N-Dimethyl-1-(2-vinylphenyl)methanamine (CAS 22826-55-7)
- Lapidine (CAS 79863-24-4)
- 2,2-Dimethyl-1,3,8-triazaspiro[4.5]decan-4-one (CAS 1810721-33-5)
- 4-Chloro-2-(((3-chloro-4-fluorophenyl)amino)methyl)phenol (CAS 868256-58-0)
- N-(3-Hydroxypropyl)benzylamine (CAS 4720-29-0)
- DL-1,2-Isopropylideneglycerol (CAS 100-79-8)
- Cyclopeptide-5 (CAS 197172-76-2)
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