3'-Bromospiro[fluorene-9,9'-xanthene] CAS 1621397-55-4
| CAS No. | 1621397-55-4 |
| Molecular Formula | C25H15BrO |
| Molecular Weight | 411.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1621397-55-4) is a high-purity analytical reference standard with the molecular formula C25H15BrO and a molecular weight of 411.29 g/mol.
Structurally, 3'-Bromospiro[fluorene-9,9'-xanthene] (C25H15BrO) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 411.29 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3'-Bromospiro[fluorene-9,9'-xanthene] 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 | 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.) | 1993 |
| Halogen Content | Br-containing |
Related Bromospiro Standards
- 2'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1477458-14-2)
- 4'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1609484-29-8)
- 4-Bromospiro[fluorene-9,9’-xanthene] (CAS 1609484-45-8)
- 2-Bromospiro[9H-fluorene-9,9'-[9H]xanthene] (CAS 899422-06-1)
- Benzyl 5-bromospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 1375076-92-8)
- 1’-Boc-6-bromospiro[chroman-2,4’-piperidin]-4-one (CAS 690632-38-3)
- 1'-Benzyl-6-bromospiro[chroman-2,4'-piperidin]-4-one (CAS 81109-72-0)
- 5-Bromospiro[benzo[c]fluorene-7,9'-fluorene] (CAS 1175203-78-7)
Recommended Standards
- 2-(4-Bromophenyl)-9-phenyl-1,10-phenanthroline (CAS 197442-25-4)
- 3-bromosprio[fluorene-9,9'-xanthene (CAS 1609484-28-7)
- 4-{4-[(5-bromothiophen-2-yl)sulfonyl]piperazin-1-yl}-4-oxobutanoic acid (CAS 888111-57-7)
- di-tert-Butyl 3-amino-6-bromo-1H-indole-1,2-dicarboxylate (CAS 2681278-24-8)
- 1-(1H-Indazol-5-yl)piperidin-4-one (CAS 938458-75-4)
- 4-(3-propyl-1,2,4-oxadiazol-5-yl)butanoic acid (CAS 1153313-94-0)
- 2-(trifluoroacetamido)benzene-1-sulfonyl chloride (CAS 2044713-25-7)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-N,4-dimethylaniline (CAS 165607-04-5)
- 6-(4-Methoxyphenyl)-2-phenylpyrazolo[1,5-a]pyrimidine (CAS 893613-49-5)
- 5-(4-Bromophenyl)-1,3,4-thiadiazole-2(3H)-thione (CAS 1021953-80-9)
- 4-Bromo-3-(difluoromethyl)-5-fluoropyridin-2-amine (CAS 1804696-58-9)
- (1S,4S)-2-methylbicyclo[2.2.1]Hept-5-ene-2-carboxylic acid (CAS 1212432-27-3)
- 2-(3-Chlorophenyl)morpholine (CAS 61151-63-1)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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