2-Chlorothieno[3,2-c]pyridine CAS 28783-23-5
| CAS No. | 28783-23-5 |
| Molecular Formula | C7H4ClNS |
| Molecular Weight | 169.63 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 2-Chlorothieno[3,2-c]pyridine.
2-Chlorothieno[3,2-c]pyridine (CAS 28783-23-5) is a high-purity analytical reference standard with the molecular formula C7H4ClNS and a molecular weight of 169.63 g/mol.
Owing to a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system, 2-Chlorothieno[3,2-c]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 169.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C7H4ClNS |
| Molecular Weight | 169.63 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.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorothieno Standards
- 6-Chlorothieno[3,2-c]pyridine (CAS 1781989-24-9)
- 2-Chlorothieno[2,3-b]pyridine (CAS 1823943-95-8)
- 2-Chlorothieno[2,3-c]pyridine (CAS 756477-32-4)
- 2-Chlorothieno[3,2-b]pyridine (CAS 94191-14-7)
- 3-Chlorothieno[2,3-b]pyridine (CAS 53399-36-3)
- 3-Chlorothieno[3,2-b]pyridine (CAS 94191-11-4)
- 4-Chlorothieno[2,3-c]pyridine (CAS 477874-92-3)
- 5-Chlorothieno[2,3-b]pyridine (CAS 21344-25-2)
Recommended Standards
- 3-amino-4-chloro-1λ⁶-thiolane-1,1-dione (CAS 369609-27-8)
- 3-Chloro-4-sulfanylbenzonitrile (CAS 38234-93-4)
- 2-Chlorophenyl Isothiocyanate (CAS 2740-81-0)
- 3-Chloro-5-mercaptobenzonitrile (CAS 895572-41-5)
- 2-(Thiophen-2-yl)aniline hydrochloride (CAS 1087723-62-3)
- 4-Amino-6-(butylamino)-1,3,5-triazin-2(1H)-one (CAS 16119-96-3)
- (2S,4S)-5-oxo-4-(trifluoromethyl)pyrrolidine-2-carboxylic acid (CAS 527704-96-7)
- 2',3'-Difluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 126163-38-0)
- 1-(Furo[3,2-b]pyridin-6-yl)ethanone (CAS 1203499-00-6)
- Homotaurine N,N-Diacetic Acid (CAS 134152-15-1)
- tert-butyl 2-amino-5H,6H,7H,8H-imidazo[1,2-a]pyridine-3-carboxylate (CAS 1955530-77-4)
- 2-Amino-1-(2-propoxyphenyl)ethan-1-one (CAS 1352495-18-1)
- (2,2-dimethylbut-3-yn-1-yl)benzene (CAS 65108-28-3)
- SV40 Nuclear Transport Signal Peptide Analog (CAS 104914-40-1)
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