3-Iodothieno[2,3-b]pyridine CAS 53399-37-4
| CAS No. | 53399-37-4 |
| Molecular Formula | C7H4INS |
| Molecular Weight | 261.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Iodothieno[2,3-b]pyridine is closely related to a nitrile group, sulfur-containing functionality, iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Iodothieno[2,3-b]pyridine (CAS 53399-37-4) is a high-purity analytical reference standard with the molecular formula C7H4INS and a molecular weight of 261.08 g/mol.
The molecular framework of 3-Iodothieno[2,3-b]pyridine (C7H4INS) is characterized by a nitrile group, sulfur-containing functionality, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 3-Iodothieno[2,3-b]pyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H4INS |
| Molecular Weight | 261.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Iodothieno Standards
- 7-Iodothieno[3,2-b]pyridine (CAS 1057670-32-2)
- 2-Iodothieno[2,3-c]pyridine (CAS 1823914-47-1)
- 2-Iodothieno[2,3-b]pyridine (CAS 1823930-57-9)
- 2-Iodothieno[3,2-b]pyridine (CAS 94191-17-0)
- 2-Iodothieno[3,2-c]pyridine (CAS 94226-17-2)
- 3-Iodothieno[3,2-b]pyridine (CAS 94191-13-6)
- 4-Iodothieno[3,2-d]pyrimidine (CAS 1593776-54-5)
- 4-Iodothieno[2,3-d]pyrimidine (CAS 18740-27-7)
Recommended Standards
- 3-Iodophenyl Isothiocyanate (CAS 3125-73-3)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]oxazol-2(3H)-one (CAS 2377991-28-9)
- 5-iodo-2-mercaptobenzonitrile (CAS 613263-25-5)
- 2-Iodophenyl Isothiocyanate (CAS 98041-44-2)
- 2-Bromo-6-fluoroisonicotinaldehyde (CAS 1227605-66-4)
- 2-Amino-4-N,N-Dimethylamino-1,3,5-Triazine (CAS 4039-98-9)
- 3-Benzyl-2,3,4,5-tetrahydro-1H-1,5-methanobenzo[d]azepine (CAS 230615-48-2)
- (5-Chloro-2-methoxybenzoyl)-L-alanine (CAS 1104730-93-9)
- 1-Allyl-7-methoxy-2-tetralone (CAS 29093-46-7)
- 2,4-Dimethyl-N-((1-(thiophen-2-yl)cyclopropyl)methyl)benzenesulfonamide (CAS 1203178-42-0)
- 3-imidazo[1,2-a]pyrimidin-3-ylprop-2-yn-1-amine (CAS 2587227-78-7)
- 3-Ethyl-1-{[(9h-fluoren-9-yl)methoxy]carbonyl}pyrrolidine-3-carboxylic acid (CAS 1341977-71-6)
- 7-Bromo-5-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1003048-74-5)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
Why CATO?
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