5-((2S,3S)-5-Bromo-2-(4-hydroxyphenyl)-2,3-dihydrobenzofuran-3-yl)benzene-1,3-diol CAS 1632406-61-1
| CAS No. | 1632406-61-1 |
| Molecular Formula | C20H15BrO4 |
| Molecular Weight | 399.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-((2S,3S)-5-Bromo-2-(4-hydroxyphenyl)-2,3-dihydrobenzofuran-3-yl)benzene-1,3-diol 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.
5-((2S,3S)-5-Bromo-2-(4-hydroxyphenyl)-2,3-dihydrobenzofuran-3-yl)benzene-1,3-diol (CAS 1632406-61-1), molecular formula C20H15BrO4 and molecular weight 399.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-((2S,3S)-5-Bromo-2-(4-hydroxyphenyl)-2,3-dihydrobenzofuran-3-yl)benzene-1,3-diol (C20H15BrO4) contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 399.23 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C20H15BrO4 |
| Molecular Weight | 399.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
Recommended Standards
- 2-Iodo-N-(pyren-1-ylmethyl)acetamide (CAS 153534-76-0)
- 1,4-Diamino-6-chloro-2-(2-chlorophenoxy)anthracene-9,10-dione (CAS 88605-18-9)
- 5-(4-Bromophenyl)-1-(3-(trifluoromethyl)phenyl)-1H-imidazole-2-thiol (CAS 1105189-91-0)
- 1,4-Diamino-6-chloro-2-(3-chlorophenoxy)anthracene-9,10-dione (CAS 88605-19-0)
- 4-Acetamidobenzenesulfinic acid (CAS 710-24-7)
- Dichloro[(R)-(+)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl][(2R)-(−)-1,1-bis(4-methoxyphenyl)-3-methyl-1,2-butanediamine]ruthenium(II) (CAS 329735-86-6)
- 2-(Naphthalen-2-yl)-1,3,2-dioxaborolane (CAS 919988-32-2)
- Palbociclib Impurity 121 (CAS 1974279-40-7)
- Ethyl 8-chloro-7-iodoimidazo[1,2-a]pyridine-2-carboxylate (CAS 1414371-26-8)
- Methyl 3-(3-hydroxyphenyl)-1,2-oxazole-5-carboxylate (CAS 904817-54-5)
- (2-Bromo-6-fluorophenyl)methanamine (CAS 261723-29-9)
- 1-(tert-Butylsulfonyl)-4-methylbenzene (CAS 5324-90-3)
- Ixazomib Impurity 24 (CAS CATO-C4X-126724)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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