3-Bromo-9,9'-spirobi[fluorene] CAS 1361227-58-8
| CAS No. | 1361227-58-8 |
| Molecular Formula | C25H15Br |
| Molecular Weight | 395.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 395.29 g/mol gives 3-Bromo-9,9'-spirobi[fluorene] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-9,9'-spirobi[fluorene] (CAS 1361227-58-8), molecular formula C25H15Br and molecular weight 395.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H15Br, 3-Bromo-9,9'-spirobi[fluorene] contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 395.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 3-Bromo-9,9'-spirobi[fluorene] 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 | C25H15Br |
| Molecular Weight | 395.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-9,9'-spirobi[fluorene] (CAS 1161009-88-6)
- 4-(4-Bromo-2-cyanophenoxymethyl)-piperidine-1-carboxylic acid tert-butyl ester (CAS 1426921-34-7)
- 1-bromo-9,9'-Spirobi[9H-fluorene] (CAS 1450933-18-2)
- 6-Bromo-2-naphthyl β-<SC>D</SC>-glucopyranoside (CAS 15548-61-5)
- 2-Bromo-9,9’-spirobifluorene (CAS 171408-76-7)
- 2-Bromo-5-(1-tosylpiperidin-2-yl)pyridine (CAS 1352524-62-9)
- 2-Bromo-3-(1-tosylpiperidin-2-yl)pyridine (CAS 1352527-63-9)
- 2-Bromo-N-[4-(2,3-dihydro-1H-indol-1-ylsulfonyl)-phenyl]acetamide (CAS 1138445-69-8)
Recommended Standards
- Capivasertib Impurity 46 (CAS CATO-C4X-331246)
- tert-Butyl 3-(6-bromo-1-oxoisoindolin-2-yl)piperidine-1-carboxylate (CAS 1443287-35-1)
- N-(1-(3,4-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylpiperazine-1-carboxamide (CAS 338755-44-5)
- 5-(3-Chlorophenyl)-2-(4-chlorophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 302914-18-7)
- 6-(((Allyloxy)carbonyl)amino)hexanoic acid (CAS 178481-32-8)
- 2-(6-Fluoropyridin-3-yl)-5-methoxy-3H-imidazo[4,5-b]pyridine (CAS 1356386-00-9)
- [2,4'-Bipyridin]-4-ylboronic acid (CAS 1644055-68-4)
- 3-(2-Fluorophenyl)-1h-pyrazol-4-amine (CAS 1247487-68-8)
- 1-Chloropropane-1,1-d2 (CAS 125640-23-5)
- (3S,7AR)-5-oxohexahydro-1H-pyrrolizine-3-carboxylic acid (CAS 106281-23-6)
- 2-(4-Methoxyphenyl)-2,3-dihydroquinazolin-4(1H)-one (CAS 61195-16-2)
- 2-(1-Aminocyclohexyl)-6-isopropylpyrimidin-4(3H)-one (CAS 1273913-19-1)
- Fmoc-L-homoserine (CAS 172525-85-8)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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