9,10-Bis(4-ethoxyphenyl)-2-chloroanthracene CAS 135965-21-8
| CAS No. | 135965-21-8 |
| Molecular Formula | C30H25ClO2 |
| Molecular Weight | 452.97 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 9,10-Bis(4-ethoxyphenyl)-2-chloroanthracene.
CATO supplies 9,10-Bis(4-ethoxyphenyl)-2-chloroanthracene (CAS 135965-21-8), a certified reference material (molecular formula C30H25ClO2, MW 452.97 g/mol) for analytical method development and quality control.
9,10-Bis(4-ethoxyphenyl)-2-chloroanthracene (C30H25ClO2) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C30H25ClO2 |
| Molecular Weight | 452.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
Related Bis Standards
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Recommended Standards
- 7-(2-Chlorophenyl)-2-(4-(2-methoxyphenyl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1242932-94-0)
- Beclometasone Impurity 44 (CAS 18769-20-5)
- 2-(4-(2-Chlorophenyl)piperazin-1-yl)-7-(4-methoxyphenyl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1226458-51-0)
- 1-{[3,5-Bis(trifluoromethyl)phenyl]methyl}-3,5-dibromo-1h-1,2,4-triazole (CAS 1240568-76-6)
- 2-((4-Chloro-N-(4-chlorophenyl)phenyl)sulfonamido)-N,N-dimethylacetamide (CAS 337922-02-8)
- 2-Amino-2-methylbut-3-en-1-ol (CAS 100450-08-6)
- 8-Bromo-7-(2-methoxyethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 141794-40-3)
- 2,5-Dichloro-N-(2-methoxy-2-(thiophen-3-yl)ethyl)benzenesulfonamide (CAS 1448137-74-3)
- [4-(difluoromethoxy)phenyl](phenyl)methanone (CAS 120838-86-0)
- 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide (CAS 792953-08-3)
- (1R,9aR)-Octahydro-1H-quinolizine-1-carboxylic acid (CAS 574-99-2)
- 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid hydrochloride (CAS 38485-01-7)
- 1-(4-Chlorobenzyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874301-94-7)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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