1,2-Bis(4-iodophenyl)ethane-1,2-dione CAS 65699-84-5
| CAS No. | 65699-84-5 |
| Molecular Formula | C14H8I2O2 |
| Molecular Weight | 462.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2-Bis(4-iodophenyl)ethane-1,2-dione (CAS 65699-84-5), molecular formula C14H8I2O2 and molecular weight 462.02 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,2-Bis(4-iodophenyl)ethane-1,2-dione (C14H8I2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 462.02 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C14H8I2O2 |
| Molecular Weight | 462.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | I-containing |
Related Bis Standards
- N-(4-Iodophenyl)-2-{4-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-yl}acetamide (CAS 329778-78-1)
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- N-(4-iodophenyl)-2-((3,4,4-trifluorobut-3-en-1-yl)thio)nicotinamide (CAS 339106-86-4)
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Recommended Standards
- 2-Amino-5-chloro-α-(cyclopropylethynyl)-4-isopropylsilyloxy-α-(trifluoromethyl)benzenemethanol (CAS 1159977-02-2)
- 3-Phenyl-3-(phenylamino)isobenzofuran-1(3H)-one (CAS 36149-35-6)
- 4-(6-{[(4-chlorophenyl)sulfanyl]methyl}-2-{[(4-fluorophenyl)methyl]sulfanyl}pyrimidin-4-yl)morpholine (CAS 341965-47-7)
- 2-Chloro-N-(1-isopropylpiperidin-4-yl)-6-methoxy-7-(3-(pyrrolidin-1-yl)propoxy)quinazolin-4-amine (CAS 1350752-07-6)
- 4,6-Difluoro-2-(piperazin-1-yl)pyrimidine (CAS 675588-43-9)
- 5-(4-Fluorophenyl)-1,2,4-triazin-3-amine (CAS 107128-47-2)
- (R)-3-Amino-6-(tert-butoxy)-6-oxohexanoic acid (CAS 2166244-05-7)
- Tenofovir alafenamide Impurity 52 (CAS 383365-04-6)
- 1-Phenoxycyclohexane-1-carboxylic acid (CAS 716361-84-1)
- Ethyl 5-hydroxy-3-phenyl-1,2,4-triazine-6-carboxylate (CAS 36286-76-7)
- 214330-98-0 3-[(4-bromophenyl)thio]-2-cyano-3-(methylthio)-2-propenoic acid ethyl ester A815354 ethyl 3-(4-bromophenyl)sulfanyl-2-cyano-3-methylsulfanyl-prop-2-enoate (CAS 214330-98-0)
- 5-[2-(3-Chlorophenoxy)phenyl]-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)-4-(1H-1,2,4-triazol-1-yl)cyclohexane-1,3-dione (CAS 1005039-85-9)
- 2-(4-tert-butylphenyl)-2-methylpropan-1-amine (CAS 211315-02-5)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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