| CAS No. | 75092-27-2 |
| Molecular Formula | C6H6I2N2O2 |
| Molecular Weight | 391.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Methyl 3,4-diiodo-1-methyl-1h-pyrazole-5-carboxylate (CAS 75092-27-2) is a high-purity analytical reference standard with the molecular formula C6H6I2N2O2 and a molecular weight of 391.93 g/mol.
Methyl 3,4-diiodo-1-methyl-1h-pyrazole-5-carboxylate (C6H6I2N2O2) 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. 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.
| Molecular Formula | C6H6I2N2O2 |
| Molecular Weight | 391.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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; 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.) | 1978 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |