2'-Bromo-9,9'-spirobi[fluoren]-2-ol CAS 1298108-45-8
| CAS No. | 1298108-45-8 |
| Molecular Formula | C25H15BrO |
| Molecular Weight | 411.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 2'-Bromo-9,9'-spirobi[fluoren]-2-ol (CAS 1298108-45-8), a certified reference material (molecular formula C25H15BrO, MW 411.29 g/mol) for analytical method development and quality control.
Based on its molecular formula C25H15BrO, 2'-Bromo-9,9'-spirobi[fluoren]-2-ol contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 411.29 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.
As a certified reference material (CRM), 2'-Bromo-9,9'-spirobi[fluoren]-2-ol 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 | C25H15BrO |
| Molecular Weight | 411.29 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 |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Bromo Standards
- Ethyl 6-bromo-5-methoxy-1-methyl-2-(morpholinomethyl)-1H-indole-3-carboxylate (CAS 40963-86-8)
- 5-Bromo-2-(dimethoxymethyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1261365-83-6)
- 3-(5-Bromo-6-methoxynaphthalen-2-yl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazole (CAS 318239-44-0)
- 4-[(2Z)-3-(5-Bromo-2-methoxyphenyl)prop-2-enoyl]phenyl methanesulfonate (CAS 331460-74-3)
- 2-Bromo-9-phenyl-9-(p-tolyl)-9H-fluorene (CAS 868549-06-8)
- 2-(4-((6-Bromo-3-nitroquinolin-4-yl)amino)phenyl)-2-methylpropanenitrile (CAS 915019-51-1)
- 4-Bromo-N-(4-nitrobenzyl)-N-phenylbenzamide (CAS 444152-43-6)
- 5-Bromo-3-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino)indolin-2-one (CAS 300567-61-7)
Recommended Standards
- 4-[(2-Bromoacetyl)amino]-N-ethyl-N-(1-naphthyl)-benzamide (CAS 1138443-38-5)
- 4-(4-Bromobenzoyl)-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-13-5)
- 2-(4-Bromophenyl)-1-(6-methoxypyridin-3-yl)-6-methyl-1,5,6,7-tetrahydro-4H-indol-4-one (CAS 1022648-64-1)
- 4-(2-Bromobenzoyl)-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326812-04-7)
- tert-Butyl 3-(2-aminocyclobutyl)azetidine-1-carboxylate (CAS 1823805-31-7)
- 5-(tert-Butylsulfonyl)-2-(piperidin-1-yl)pyrimidin-4-amine (CAS 175202-16-1)
- (2,4-Dichlorophenyl)(1-(2-(trifluoromethyl)phenyl)-1H-1,2,3-triazol-4-yl)methanone (CAS 477847-85-1)
- Chlorhexidine EP Impurity N (CAS 152504-10-4)
- 1-(4-Bromophenyl)-3,5-dimethylpyrazole (CAS 62546-27-4)
- Lamivudine EP Impurity F (CAS 66-22-8)
- (R)-4-(tert-butoxy)-2-((1-methyl-6-oxo-1,6-dihydropyridin-2-yl)methyl)-4-oxobutanoic acid (CAS 2426657-69-2)
- 4-Cyclopropoxy-3-ethyl-5-(trifluoromethyl)pyridine (CAS 1243401-14-0)
- 2-Amino-2-(5-oxaspiro[3.5]nonan-8-yl)acetic acid (CAS 1526731-85-0)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com