(E)-1,2-bis(4-iodophenyl)ethene CAS 201861-91-8
| CAS No. | 201861-91-8 |
| Molecular Formula | C14H10I2 |
| Molecular Weight | 432.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-1,2-bis(4-iodophenyl)ethene.
(E)-1,2-bis(4-iodophenyl)ethene (CAS 201861-91-8) is a high-purity analytical reference standard with the molecular formula C14H10I2 and a molecular weight of 432.04 g/mol.
Structurally, (E)-1,2-bis(4-iodophenyl)ethene (C14H10I2) contains iodine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 432.04 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-1,2-bis(4-iodophenyl)ethene 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.
Physical & Chemical Properties
| Molecular Formula | C14H10I2 |
| Molecular Weight | 432.04 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 |
| 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.) | 2014 |
| Halogen Content | I-containing |
Recommended Standards
- 4,5-Diiodo-2-(tetrahydro-2H-pyran-4-yl)pyridazin-3(2H)-one (CAS 1706464-46-1)
- Benzyl (2-bromo-4-iodophenyl)carbamate (CAS 1259056-06-8)
- 2,7-Diiodo-9h-fluoren-9-one (CAS 16218-30-7)
- Benzyl (2-bromo-6-iodophenyl)carbamate (CAS 1427501-71-0)
- 2-Amino-7-methyl-5-oxo-4-phenyl-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile (CAS 194282-72-9)
- 6-Chloro-8-iodoquinolin-4(1H)-one (CAS 1171918-81-2)
- n-(4-Fluoro-2-methylphenyl)tetrahydrothiophen-3-amine (CAS 1021080-05-6)
- N-Hydroxypyridine-4-carbimidoyl Chloride (CAS 4185-99-3)
- (4-((4-Allyl-2-methoxyphenoxy)methyl)phenyl)methanamine (CAS 866039-46-5)
- Methyl (2S,4S)-4-(2-bromo-4-methylphenoxy)-2-pyrrolidinecarboxylate (CAS 1217843-04-3)
- 1-(2-(Pyrrolidin-1-yl)ethyl)-1H-pyrazol-4-amine (CAS 1251062-56-2)
- (2-Azabicyclo[2.2.1]heptan-3-yl)methanol (CAS 347381-85-5)
- 5-Acetyl-2-benzoylbenzofuran-3(2H)-one (CAS 144153-85-5)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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