3-Iodo-4-methylstyrene CAS 165803-90-7
| CAS No. | 165803-90-7 |
| Molecular Formula | C9H9I |
| Molecular Weight | 244.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to iodine substitution, an aromatic ring system, 3-Iodo-4-methylstyrene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
3-Iodo-4-methylstyrene (CAS 165803-90-7) is a high-purity analytical reference standard with the molecular formula C9H9I and a molecular weight of 244.07 g/mol.
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), 3-Iodo-4-methylstyrene 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 | C9H9I |
| Molecular Weight | 244.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | I-containing |
Related Iodo Standards
- 4-Iodo-2,3-dihydro-1H-indene (CAS 1285718-21-9)
- 5-Iodo-2,3-dihydro-1H-indene (CAS 132464-83-6)
- 1-Iodo-2-(prop-1-en-2-yl)benzene (CAS 61161-21-5)
- 1-Iodo-3-(prop-1-en-2-yl)benzene (CAS 865374-43-2)
- 1-Iodo-3-(propan-2-yloxy)propan-2-ol (CAS 201596-42-1)
- 1-Iodo-4-(1-propen-2-yl)benzene (CAS 561023-21-0)
- 2-iodo-2,3-dihydro-1H-indene (CAS 24329-96-2)
- 6-Iodo-4-azaindole (CAS 1015609-75-2)
Recommended Standards
- 1-(3,4-Dichlorophenyl)pyrrolidine-2,5-dione (CAS 15386-58-0)
- 2-Cyano-3-(2,4-dichlorophenyl)propionic Acid (CAS 16994-08-4)
- 1-(2,4-Dichlorophenyl)pyrrolidine-2,4-dione (CAS 1536808-84-0)
- 4,5-Dichloro-1-methyl-1H-indole-2-carboxylic acid (CAS 1782898-58-1)
- 1-(2,4-Difluorophenyl)-3-(piperidin-1-yl)pyrrolidine-2,5-dione (CAS 306730-21-2)
- 2-(4-(Piperidin-1-yl)benzylidene)malononitrile (CAS 66883-91-8)
- Oxirane, 2-[(decyloxy)methyl]-, polymer with 2-methyloxirane, 2-[(octyloxy)methyl]oxirane and oxirane, hexyl ether (CAS 72187-16-7)
- 5-Bromo-2-methylphenylboronic acid pinacol ester (CAS 1192051-39-0)
- 3-Hydroxybicyclo[3.1.0]hexane-6-carboxylic acid (CAS 2243802-08-4)
- 1-Isopropylpiperidine-2-carboxylic acid (CAS 1218651-70-7)
- 1-ethyl-6-methyl-1H-1,3-benzodiazole (CAS 26530-88-1)
- 4-Hydroxy-7-(trifluoromethyl)quinoline-3-carbonyl chloride (CAS 59197-90-9)
- 2-(1H-pyrazol-4-yl)-2-azaspiro[4.4]Nonane-1,3-dione (CAS 1155116-28-1)
- (D-Trp32)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 153549-78-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com