2-Chlorobiphenylene CAS 50558-21-9
| CAS No. | 50558-21-9 |
| Molecular Formula | C12H7Cl |
| Molecular Weight | 186.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chlorobiphenylene is closely related to chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Chlorobiphenylene (CAS 50558-21-9), a certified reference material (molecular formula C12H7Cl, MW 186.64 g/mol) for analytical method development and quality control.
Structurally, 2-Chlorobiphenylene (C12H7Cl) contains chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 186.64 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Chlorobiphenylene 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 | C12H7Cl |
| Molecular Weight | 186.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
Recommended Standards
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- 2,3-Dichloro-6-(difluoromethoxy)benzoic acid (CAS 1803830-94-5)
- 1-Bromo-5-fluoro-4-iodo-2-nitrobenzene (CAS 1187385-70-1)
- 4-oxo-8-Phenyl-1,4-dihydroquinoline-3-carboxylic acid (CAS 57278-48-5)
- Ozanimod impurity 35 (CAS 1306760-61-1)
- 3-Chloro-N-ethyl-5,6-dimethylpyrazin-2-amine (CAS 1469716-60-6)
- 2-Ethyl-1-nonanol (CAS 54322-29-1)
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- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com