2,4,5,7-Tetraiodo-3-oxo-9-(2,3,4,5-tetrachlorophenyl)-3H-xanthen-6-yl acetate CAS 133433-82-6
| CAS No. | 133433-82-6 |
| Molecular Formula | C21H6Cl4I4O4 |
| Molecular Weight | 971.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4,5,7-Tetraiodo-3-oxo-9-(2,3,4,5-tetrachlorophenyl)-3H-xanthen-6-yl acetate (CAS 133433-82-6) is a high-purity analytical reference standard with the molecular formula C21H6Cl4I4O4 and a molecular weight of 971.70 g/mol.
The molecular framework of 2,4,5,7-Tetraiodo-3-oxo-9-(2,3,4,5-tetrachlorophenyl)-3H-xanthen-6-yl acetate (C21H6Cl4I4O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, chlorine/iodine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H6Cl4I4O4 |
| Molecular Weight | 971.70 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl/I-containing |
Related Tetraiodo Standards
- 3,3',6,6'-Tetraiodo-2,2',7,7'-tetramethoxy-9,9'-spirobi[fluorene] (CAS 1801236-30-5)
- 2,2',7,7'-Tetraiodo-9,9'-spirobi[fluorene] (CAS 137181-59-0)
- 1,1',3,3'-Tetraiodo-4H,4'H,6H,6'H-5,5'-spirobi[silolo[3,4-c]thiophene] (CAS 138452-52-5)
- 3,3',5,5'-Tetraiodo-2,2',4,4',6,6'-hexamethyl-1,1'-biphenyl (CAS 37055-19-9)
- 3,5,3’,5’-Tetraiodo Thyroaldehyde-13C6 (CAS 1346601-51-1)
- 2,4,5,7-TETRAIODO-6-HYDROXY-3-FLUORONE (CAS 142189-38-6)
- 4,5,6,7-Tetraiodo-3H-benzo[c][1,2]oxathiol-3-one 1,1-dioxide (CAS 1745-83-1)
- 2,3,4,5-Tetraiodo-1H-pyrrole (CAS 87-58-1)
Recommended Standards
- 2,3,4,5-Tetrachloro-6-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate (CAS 2438210-60-5)
- 15α-Acetoxy-18-methyl-4-estren-3,17-dione (CAS 134192-05-5)
- Y6-1 (CAS 2304444-52-6)
- 3A-Amino-3A-deoxy-(2AS,3AS)-α-cyclodextrin (CAS 121916-94-7)
- 6-Aminomethylquinoline Hydrochloride (CAS 114223-89-1)
- Nintedanib (CAS 656247-17-5)
- 5-Bromo-3-fluoro-2-nitrobenzonitrile (CAS 1805190-15-1)
- 7-(bromomethyl)-5-chloro-2,3-dihydrobenzofuran (CAS 1566320-16-8)
- Irigenol (CAS 4935-93-7)
- 5-allyl-6-methyl-2-phenylpyrimidin-4-ol (CAS 255869-27-3)
- (2S,3S)-1,2-dimethylpiperidin-3-amine (CAS 2306252-62-8)
- 2-Amino-5-butyl-3-ethyl-6-methylpyrimidin-4(3H)-one (CAS 36946-02-8)
- tert-Butyl (2-amino-4-bromophenyl)(methyl)carbamate (CAS 1187928-31-9)
- Epidermal Growth Factor Receptor Peptide (985-996) (CAS 96249-43-3)
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