2-iodo-5-methylthiophene CAS 16494-36-3
| CAS No. | 16494-36-3 |
| Molecular Formula | C5H9IS |
| Molecular Weight | 228.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-iodo-5-methylthiophene (CAS 16494-36-3), molecular formula C5H9IS and molecular weight 228.09 g/mol, is a CATO reference standard with documented purity and traceability.
2-iodo-5-methylthiophene (C5H9IS) contains sulfur-containing functionality, iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-iodo-5-methylthiophene 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 | C5H9IS |
| Molecular Weight | 228.09 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related iodo Standards
- 1-Iodo-2-isocyanobenzene (CAS 183209-25-8)
- 5-iodo-1,4-dimethyl-triazole (CAS 1346818-62-9)
- 2-Iodo-N-isopropylacetamide (CAS 80935-13-3)
- 4-Iodo-2-pyridinecarbonitrile (CAS 913836-19-8)
- 1-Iodo-2-vinylbenzene (CAS 4840-91-9)
- 1-Iodo-3-vinylbenzene (CAS 4840-92-0)
- 1-Iodo-2,3,3-trimethylbutane (CAS 88945-53-3)
- 1-Iodo-2-methylhexane (CAS 624-21-5)
Recommended Standards
- 3-Bromo-5-(pyrrolidin-1-yl)pyridazine (CAS 1619987-50-6)
- 2-Bromo-N,3-dimethylbenzamide (CAS 1696076-74-0)
- 4-Bromo-3-(cyclopropylmethoxy)pyridine (CAS 1610521-11-3)
- 5-Bromo-2-(dimethylamino)benzaldehyde (CAS 171881-36-0)
- 3,4-Diethylphenol (CAS 875-85-4)
- 8-Chloro-5-(piperazin-1-ylsulfonyl)isoquinoline dihydrochloride (CAS 355115-40-1)
- tert-Butyl (2S,4R)-2-hydroxy-6-azaspiro[3.5]nonane-6-carboxylate (CAS 2763887-67-6)
- Palbociclib Impurity 26 (CAS 1023594-50-4)
- 2-Hexyl-3-hydroxy-5-[(tetrahydro-2H-pyran-2-yl)oxy]-hexadecanoic Acid Methyl Ester (CAS 104801-68-5)
- tert-Butyl (3-oxo-1-phenylpropyl)carbamate (CAS 374725-03-8)
- Diethyl 2-(3-buten-1-yl)-2-methylmalonate (CAS 5331-70-4)
- 4-Methoxy-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride (CAS 1187830-77-8)
- 2-(2-Bromoethyl)pyridazin-3(2H)-one (CAS 83675-79-0)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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