1,5-Difluoro-3-iodo-2-nitrobenzene CAS 771-05-1
| CAS No. | 771-05-1 |
| Molecular Formula | C6H2F2INO2 |
| Molecular Weight | 284.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,5-Difluoro-3-iodo-2-nitrobenzene 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.
1,5-Difluoro-3-iodo-2-nitrobenzene (CAS 771-05-1), molecular formula C6H2F2INO2 and molecular weight 284.99 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/iodine substitution, an aromatic ring system, 1,5-Difluoro-3-iodo-2-nitrobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 284.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C6H2F2INO2 |
| Molecular Weight | 284.99 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/I-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 1,3-Difluoro-2-iodo-4-nitrobenzene (CAS 1145881-54-4)
- 1,2-Difluoro-4-iodo-5-nitrobenzene (CAS 1182709-37-0)
- 1,3-Difluoro-5-iodo-2-nitrobenzene (CAS 147808-40-0)
- 1,5-Difluoro-2-iodo-4-nitrobenzene (CAS 148388-74-3)
- 1,2-Difluoro-3-iodo-4-nitrobenzene (CAS 1699419-01-6)
- 1,3-Difluoro-2-iodo-5-nitrobenzene (CAS 886762-63-6)
- 1,5-Difluoro-2-iodo-3-nitrobenzene (CAS 364-29-4)
- 2,6-Difluoro-5-iodonicotinic acid (CAS 685517-76-4)
Recommended Standards
- 2-Bromomethylphenylboronic acid,neopentyl glycol ester (CAS 441011-76-3)
- 4-Bromo-5-fluoro-3-(trifluoromethoxy)picolinonitrile (CAS 1806011-95-9)
- 2,6-Difluoro-4-iodonicotinic acid (CAS 685517-72-0)
- 1-(3,4-Dibromothiophen-2-yl)-N-methylmethanamine (CAS 1394022-22-0)
- 5-(2-(Cyclopropylmethyl)pyrimidin-4-yl)-4-methylthiazol-2-amine (CAS 1163707-18-3)
- [(3Z)-1-[(2,4-Dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 4-methylbenzoate (CAS 320419-61-2)
- 1-Methyl-3-phenyl-1H-pyrazole-4,5-dione (CAS 62349-59-1)
- N-[4-(Diethylamino)-2-hydroxybenzylidene]-2-hydroxybenzohydrazide (CAS 316130-82-2)
- Troxipide Impurity 9 (CAS 73448-94-9)
- Ethyl 2-((5-(2-hydroxyethoxy)pentyl)oxy)acetate (CAS 2361114-40-9)
- Diethyl 1-(4-acetylphenyl)-2-methyl-1H-pyrrole-3,4-dicarboxylate (CAS 853334-51-7)
- 5-Fluoro-2-isobutoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 2377611-48-6)
- BENZYL 4-METHYL-2-(TRIFLUOROMETHYL)OXAZOLE-5-CARBOXYLATE (CAS 1346526-84-8)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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