3,4-Difluoro-2-iodobenzophenone CAS 951891-68-2
| CAS No. | 951891-68-2 |
| Molecular Formula | C13H7F2IO |
| Molecular Weight | 344.10 g/mol |
| 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.
3,4-Difluoro-2-iodobenzophenone (CAS 951891-68-2), molecular formula C13H7F2IO and molecular weight 344.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H7F2IO, 3,4-Difluoro-2-iodobenzophenone contains a hydroxyl group, an ether linkage, fluorine/iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H7F2IO |
| Molecular Weight | 344.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/I-containing |
Related Difluoro Standards
- 3,5-Difluoro-3-iodobenzophenone (CAS 951891-83-1)
- trans-2,3-Difluoro-4-methoxy-4′-(4-propylcyclohexyl)-1,1′-biphenyl (CAS 1002127-48-1)
- 2,2-Difluoro-N-(4-methylphenyl)-2-[3-(trifluoromethyl)phenoxy]acetamide (CAS 338792-11-3)
- 1-Ethyl-6,8-difluoro-7-(4-hydroxyphenyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 103978-08-1)
- 3,4-Difluoro-4'-(trans-4-pentylcyclohexyl)biphenyl (CAS 134412-17-2)
- 2,2-Difluoro-2-(1,1,2,2-tetrafluoro-2-(perfluoroethoxy)ethoxy)acetic acid (CAS 80153-82-8)
- Ethyl 2,2-difluoro-2-(4-iodophenoxy)acetate (CAS 947533-64-4)
- Methyl 2,2-difluoro-7-iodo-2H-1,3-benzodioxole-5-carboxylate (CAS 1298047-55-8)
Recommended Standards
- (3,5-Difluorophenyl)(4-iodophenyl)methanone (CAS 951891-86-4)
- (3,5-Difluorophenyl)(2-iodophenyl)methanone (CAS 951891-80-8)
- 5-(4-Iodophenoxymethyl)furan-2-carboxylic acid (CAS 406470-50-6)
- (3,4-Difluorophenyl)(4-iodophenyl)methanone (CAS 951891-74-0)
- 7-Methyl-6-nitroimidazo[1,2-a]pyridine (CAS 960505-77-5)
- 4-Methyl-5-(1-methyl-3-propyl-1h-1,2,4-triazol-5-yl)thiazol-2-amine (CAS 1339039-72-3)
- (2S,3R)-3-(tert-Butoxy)-1-[(9H-fluoren-9-ylmethoxy)carbonyl]pyrrolidine-2-carboxylic acid (CAS 443899-48-7)
- 5-Methyl-2,3-dihydro-1H-pyrrole (CAS 100791-95-5)
- Methyl 2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (CAS 1936009-13-0)
- N1-benzyl-N2-methyloxalamide (CAS 7666-51-5)
- 1-(2-Bromoethoxy)cyclobutane-1-carbonitrile (CAS 1934950-59-0)
- 3-(Trifluoroacetamido)pyridine-4-carboxylic acid (CAS 1339687-09-0)
- 3,4-Dimethyl-7-(2-oxopropoxy)-2H-chromen-2-one (CAS 156006-10-9)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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