3,5-Diiodo-4-methyl-1H-pyrrole-2-carbaldehyde CAS 49569-09-7
| CAS No. | 49569-09-7 |
| Molecular Formula | C6H5I2NO |
| Molecular Weight | 360.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Diiodo-4-methyl-1H-pyrrole-2-carbaldehyde (CAS 49569-09-7), molecular formula C6H5I2NO and molecular weight 360.92 g/mol, is a CATO reference standard with documented purity and traceability.
3,5-Diiodo-4-methyl-1H-pyrrole-2-carbaldehyde (C6H5I2NO) contains an amide group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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.
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 | C6H5I2NO |
| Molecular Weight | 360.92 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Diiodo Standards
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- 3,5-Diiodo-6-methylpyridin-2-amine (CAS 1000342-88-0)
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- 2,6-Diiodo-4-methylphenol (CAS 2432-18-0)
Recommended Standards
- Methyl 4-amino-5-(2-((tert-butyldimethylsilyl)oxy)ethoxy)-6-chloronicotinate (CAS 2883421-70-1)
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- 4-Amino-2,6-diiodophenol (CAS 2297-82-7)
- 3-bromo-2-fluoro-4-hydroxy-5-iodobenzoic acid (CAS 2770534-72-8)
- 1-Methyl-2,4-dioxo-2,3,4,6,7,8-hexahydro-1H-cyclopenta[5,6]pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 889940-93-6)
- Dimethyl 3-(aminomethyl)benzylphosphonate oxalate (CAS 1383133-17-2)
- 2-Bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carbaldehyde (CAS 1185428-34-5)
- 4-Bromo-5-(difluoromethyl)-6-methylpyridine-3-sulfonamide (CAS 1805250-55-8)
- Calcium carbonate in soil (CAS CATO-CQCM102219)
- 5-Amino-4-fluoro-2-methylphenyl Methoxyformate (CAS 193001-52-4)
- tert-Butyl (4-(2-amino-N-cyclopropylacetamido)cyclohexyl)carbamate (CAS 1353971-92-2)
- 6-(4-Fluoro-2-methylphenyl)-N'-(2-methoxyacetyl)pyridazine-3-carbohydrazide (CAS 848953-33-3)
- 3-(Difluoromethyl)-6-formyl-5-nitropicolinonitrile (CAS 1806846-93-4)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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