2,3-Dichloro-9,10-bis(phenylethynyl)anthracene CAS 51580-25-7
| CAS No. | 51580-25-7 |
| Molecular Formula | C30H16Cl2 |
| Molecular Weight | 447.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Dichloro-9,10-bis(phenylethynyl)anthracene is closely related to chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,3-Dichloro-9,10-bis(phenylethynyl)anthracene (CAS 51580-25-7) is a high-purity analytical reference standard with the molecular formula C30H16Cl2 and a molecular weight of 447.35 g/mol.
The molecular framework of 2,3-Dichloro-9,10-bis(phenylethynyl)anthracene (C30H16Cl2) is characterized by chlorine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,3-Dichloro-9,10-bis(phenylethynyl)anthracene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C30H16Cl2 |
| Molecular Weight | 447.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 1,4-Dichloro-9,10-bis(phenylethynyl)anthracene (CAS 80034-19-1)
- 1,5-Dichloro-9,10-bis(phenylethynyl)anthracene (CAS 51580-24-6)
- 1,8-Dichloro-9,10-bis(phenylethynyl)anthracene (CAS 51749-83-8)
- 2-(N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenylsulfonamido)-N-methylacetamide (CAS 338967-93-4)
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- 2,5-Dichloro-3,6-bis((4-ethoxyphenyl)amino)cyclohexa-2,5-diene-1,4-dione (CAS 29027-10-9)
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Recommended Standards
- N-(3,5-bis(trifluoromethyl)phenyl)-2-((4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetamide (CAS 556787-47-4)
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- m-PEG8-Br (CAS 1056881-04-9)
- GW-405833 (CAS 180002-83-9)
- 1-(2,4-Dichlorophenyl)-3-ethoxyprop-2-en-1-one (CAS 1344812-36-7)
- Methyl 2-(benzylamino)-5-iodobenzoate (CAS 1131587-21-7)
- Pcb No. 66 (CAS 32598-10-0)
- 2-(4-Butylphenyl)-6-chloroquinoline-4-carbonyl chloride (CAS 1160263-19-3)
- 4-Bromo-3-fluoro-2-nitrophenol (CAS 889939-22-4)
- Ethyl 2,3-dioxohexahydro-1H-pyrrolizine-1-carboxylate (CAS 35620-60-1)
- 2-[Difluoro(methoxy)methyl]pyrrolidine hydrochloride (CAS 2097933-47-4)
- 4-Bromo-3-(3-bromophenyl)-5-methyl-1H-pyrazole (CAS 1240309-82-3)
- 4-PREGNEN-3, 20-DIONE 3-O-CARBOXYMETHYLOXIME-(NH)-CH)10-(NH)-BIOTIN (CAS 50909-89-2)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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