4-Chloro-2-iodo-3-methylthieno[2,3-b]pyridine-5-carbonitrile CAS 930293-15-5
| CAS No. | 930293-15-5 |
| Molecular Formula | C9H4ClIN2S |
| Molecular Weight | 334.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-Chloro-2-iodo-3-methylthieno[2,3-b]pyridine-5-carbonitrile (CAS 930293-15-5), a certified reference material (molecular formula C9H4ClIN2S, MW 334.56 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chloro-2-iodo-3-methylthieno[2,3-b]pyridine-5-carbonitrile (C9H4ClIN2S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine/iodine substitution. 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. 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.
Physical & Chemical Properties
| Molecular Formula | C9H4ClIN2S |
| Molecular Weight | 334.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2,2,2-Trichloro-1-(4-(4-fluorobenzoyl)-1H-pyrrol-2-yl)ethan-1-one (CAS 453557-67-0)
- Domiphen-API (CAS 13900-14-6)
- 1261573-69-6 2-Methyl-5-(trifluoromethoxy)phenylacetic acid MFCD18399820 (CAS 1261573-69-6)
- 4-Chloro-2-(pyridin-3-yl)-6-(trifluoromethyl)pyrimidine (CAS 204394-69-4)
- N,4'-Dihydroxy-[1,1'-biphenyl]-4-carboximidamide (CAS 885952-07-8)
- Tebuconazole-d9 (CAS 1246818-83-6)
- Cholecalciferol Impurity 25 (CAS CATO-C4X-158625)
- 4-(5-(Morpholinomethyl)-1,2,4-oxadiazol-3-yl)benzaldehyde (CAS 1119450-76-8)
- TERT-BUTYL 4-FLUORO-3-OXOAZEPANE-1-CARBOXYLATE (CAS 1823834-07-6)
- Avatrombopag Impurity 103 (CAS CATO-C4X-2234103)
- 8-Chloropyrimido[5,4-d]pyrimidin-2-amine (CAS 1260850-64-3)
- D-[Ala]24-Semaglutide (CAS CATO-C4X-2226126)
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