5-Chloro-2-(thiophen-2-yl)pyridine CAS 56421-70-6
| CAS No. | 56421-70-6 |
| Molecular Formula | C9H6ClNS |
| Molecular Weight | 195.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 195.67 g/mol gives 5-Chloro-2-(thiophen-2-yl)pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Chloro-2-(thiophen-2-yl)pyridine (CAS 56421-70-6), a certified reference material (molecular formula C9H6ClNS, MW 195.67 g/mol) for analytical method development and quality control.
Structurally, 5-Chloro-2-(thiophen-2-yl)pyridine (C9H6ClNS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 195.67 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 5-Chloro-2-(thiophen-2-yl)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 | C9H6ClNS |
| Molecular Weight | 195.67 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-(5-Chloro-2-thienyl)pyridine (CAS 123784-09-8)
- 2-Chloro-4-(thiophen-2-yl)pyridine (CAS 1289555-51-6)
- 5-Chloro-4-phenylthiazole (CAS 1403935-14-7)
- 5-Chloro-2-phenylthiazole (CAS 141305-41-1)
- 3-Chloro-1-thioisoquinoline (CAS 1706444-53-2)
- 2-Chloro-4-phenylthiazole (CAS 1826-23-9)
- 2-Chloro-5-(3-thienyl)pyridine (CAS 873948-15-3)
- 2-Chloro-5-phenylthiazole (CAS 329794-40-3)
Recommended Standards
- 4-(3-Chlorophenyl)thiazole (CAS 383145-27-5)
- 6-Chloroquinoline-4-thiol (CAS 64495-66-5)
- 4-(2-Chlorophenyl)thiazole (CAS 383145-28-6)
- 7-Chloroquinoline-4(1H)-thione (CAS 90225-19-7)
- 3-(4-Chlorophenyl)-4-(methylsulfonyl)-1H-pyrrole (CAS 87388-59-8)
- Propyl[(pyridin-4-yl)methyl]amine dihydrochloride (CAS 879640-89-8)
- 2-(1-Tosyl-1,2,3,4-tetrahydroquinolin-4-yl)acetic acid (CAS 102586-89-0)
- (R)-2-Amino-3-(4-phosphonophenyl)propanoic acid (CAS 1241680-48-7)
- Fasudil Impurity 9 (CAS 1350827-92-7)
- JNJ 10181457 (CAS 544707-19-9)
- (1,2-Bis((S,S)-2,5-dimethyl-1-phospholidinyl)ethane)(1,5-cyclooctadiene)rhodium(1+) trifluoromethanesulfonate (CAS 213343-69-2)
- 10-(4-Ethynylphenyl)-5,5-difluoro-1,3,7,9-tetramethyl-5H-4l4,5l4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinine (CAS 628729-80-6)
- 5-(Trifluoromethyl)biphenyl-2-sulfonyl chloride (CAS 1214346-20-9)
- Neuropeptide W-23 (rat) (CAS 383415-89-2)
Why CATO?
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