2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene CAS 738580-15-9
| CAS No. | 738580-15-9 |
| Molecular Formula | C26H32Br2 |
| Molecular Weight | 504.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene (CAS 738580-15-9), molecular formula C26H32Br2 and molecular weight 504.34 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene (C26H32Br2) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 504.34 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene 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 | C26H32Br2 |
| Molecular Weight | 504.34 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
Related Dibromo Standards
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- 4,4'-(((2,5-Dibromo-1,4-phenylene)bis(methylene))bis(oxy))dibenzaldehyde (CAS 2304559-58-6)
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Recommended Standards
- 2-{[(4-chlorophenyl)methyl]amino}-2-methylpropane-1,3-diol (CAS 4823-31-8)
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- N-Nitroso Vandetanib (CAS CATO-C4X-17763)
- 2-Methyl-5H-[1,3]dioxolo[4,5-c]pyrrole (CAS 259796-65-1)
- 2,4,6,7-Tetrachloroquinazoline (CAS 1219456-89-9)
- trans-2-tert-Butoxycarbonylamino-1-methyl-cyclopentanecarboxylic acid (CAS 1965310-36-4)
- 1-Bromo-2-(difluoromethyl)-4,5-difluorobenzene (CAS 1804909-69-0)
- 1-Bromo-4-(methoxymethyl)benzene (CAS 1515-88-4)
- 7-Fluoro-1-tosyl-1,2,3,4-tetrahydro-5H-benzo[b]azepin-5-one (CAS 1510826-19-3)
- μ-Conotoxin GIIIA (CAS 129129-65-3)
- Methyl N-(3-{[3-(trifluoromethyl)phenyl]methoxy}thiophen-2-yl)carbamate (CAS 339009-54-0)
- 7-Bromo-4-chloro-2-(difluoromethyl)pyrido[3,2-d]pyrimidine (CAS 2377656-18-1)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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