Ethyl 5-iodo-1-methyl-1H-pyrazole-4-carboxylate CAS 754219-01-7
| CAS No. | 754219-01-7 |
| Molecular Formula | C7H9IN2O2 |
| Molecular Weight | 280.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-iodo-1-methyl-1H-pyrazole-4-carboxylate (CAS 754219-01-7) is a high-purity analytical reference standard with the molecular formula C7H9IN2O2 and a molecular weight of 280.06 g/mol.
Ethyl 5-iodo-1-methyl-1H-pyrazole-4-carboxylate (C7H9IN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Ethyl 5-iodo-1-methyl-1H-pyrazole-4-carboxylate 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 | C7H9IN2O2 |
| Molecular Weight | 280.06 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 3-(4-Iodo-3-methyl-1h-pyrazol-1-yl)propanoic acid (CAS 1005583-96-9)
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- 4-Iodo-2,6-dimethoxyphenol (CAS 106465-03-6)
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- Ethyl 5-iodo-1-methyl-1H-pyrazole-3-carboxylate (CAS 1218764-76-1)
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Recommended Standards
- Ethyl 3-iodo-1-methyl-1H-pyrazole-4-carboxylate (CAS 799835-39-5)
- 1,2,9,10-Tetrachlorodecane CP- (CAS 205646-11-3)
- Ethyl 2-(4-iodo-1H-pyrazol-1-yl)acetate (CAS 82231-59-2)
- Ethyl 2-(3-bromopyridin-2-yl)-2,2-difluoroacetate (CAS 1216550-94-5)
- 1,4-Dioxo-2,3-dihydrophthalazine-6-carboxylic acid (CAS 42972-13-4)
- 4-Bromo-1H-pyrrolo[2,3-b]pyridin-6-amine (CAS 943323-55-5)
- 3-(thiophen-3-yl)-1H-pyrazole-4-carbaldehyde (CAS 1249172-47-1)
- Etridiazole (CAS 2593-15-9)
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