9,9'-Biphenanthrene, 97% CAS 20532-03-0
| CAS No. | 20532-03-0 |
| Molecular Formula | C28H18 |
| Molecular Weight | 354.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 9,9'-Biphenanthrene, 97% (C28H18) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 20.0, corresponding to approximately 20 ring(s) or double-bond equivalent(s). With a molecular weight of 354.44 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
9,9'-Biphenanthrene, 97% (CAS 20532-03-0), molecular formula C28H18 and molecular weight 354.44 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C28H18 |
| Molecular Weight | 354.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Biphenanthrene Standards
Recommended Standards
- 8-[3-(1-ACETYL-PIPERIDIN-4-YL)-PROPIONYL]-1,2,5,6-TETRAHYDRO-PYRROLO[3,2,1-IJ]QUINOLIN-4-ONE (CAS 215040-77-0)
- 9-Phenyl-10-(phenylethynyl)anthracene (CAS 97083-12-0)
- 7,10-Diphenylfluoranthene (CAS 55087-78-0)
- Benzyl((S)-2-((S)-3-hydroxypyrrolidin-1-yl)-1-phenylethyl)(methyl)carbamate (CAS 672310-23-5)
- 1-(Cyclobutylmethyl)-3-methyl-1h-pyrazole-4-carboxylic acid (CAS 1469722-82-4)
- 2-((1-Benzylpiperidin-4-yl)oxy)-N-methylacetamide (CAS 902836-98-0)
- N1-Butyl-N2-(4-methoxyphenyl)oxalamide (CAS 21782-35-4)
- Methyl 4-hydroxy-2-methylquinoline-7-carboxylate (CAS 1150618-19-1)
- 2-(2-Bromophenyl)-5-(((1-(2-ethoxyphenyl)-1H-tetrazol-5-yl)thio)methyl)-1,3,4-oxadiazole (CAS 849012-74-4)
- Azelastine Impurity 21 (CAS 57676-51-4)
- 1-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-3-[(4-fluorophenyl)methyl]-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 338399-26-1)
- 1,5-Bis((4-(hexyl(methyl)amino)phenyl)amino)anthracene-9,10-dione (CAS 89133-07-3)
- 2-Amino-4-ethylphenol hydrochloride (CAS 79509-90-3)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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