1'-tert-Butyl 4'-ethyl 6-bromo-3,4-dihydro-2H-spiro[naphthalene-1,3'-pyrrolidine]-1',4'-dicarboxylate CAS 1956332-79-8
| CAS No. | 1956332-79-8 |
| Molecular Formula | C21H28BrNO4 |
| Molecular Weight | 438.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1'-tert-Butyl 4'-ethyl 6-bromo-3,4-dihydro-2H-spiro[naphthalene-1,3'-pyrrolidine]-1',4'-dicarboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 438.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 1'-tert-Butyl 4'-ethyl 6-bromo-3,4-dihydro-2H-spiro[naphthalene-1,3'-pyrrolidine]-1',4'-dicarboxylate (CAS 1956332-79-8), a certified reference material (molecular formula C21H28BrNO4, MW 438.36 g/mol) for analytical method development and quality control.
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 1'-tert-Butyl 4'-ethyl 6-bromo-3,4-dihydro-2H-spiro[naphthalene-1,3'-pyrrolidine]-1',4'-dicarboxylate 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 | C21H28BrNO4 |
| Molecular Weight | 438.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Bromo-11,11-dimethyl-5-phenyl-5,11-dihydroindeno[1,2-b]carbazole (CAS 1343493-13-9)
- 2-[4-(4-Bromobenzenesulfonyl)piperazin-1-yl]-1,3-benzothiazole (CAS 478077-05-3)
- 2-Bromo-7,7-dimethyl-5-phenyl-5,7-dihydroindeno[2,1-b]carbazole (CAS 1257220-44-2)
- 9-(7-Bromo-9,9-dimethyl-9H-fluoren-2-yl)-9H-carbazole (CAS 868549-07-9)
- 8-(3-Fluorophenoxy)imidazo[1,2-a]pyrazine-6-carboximidamide (CAS 2052362-58-8)
- 2-(3,4-Dichlorophenyl)-5-(furan-2-yl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 439095-81-5)
- 6-bromo-8-fluoroquinazolin-4-amine (CAS 1379357-13-7)
- Bacitracin (CAS 1405-87-4)
- methyl 4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 82782-85-2)
- Benzyl (pyrrolidin-3-ylmethyl)carbamate hydrochloride (CAS 1179361-27-3)
- 2-Thiophen-2-yl-quinoline-4-carboxylic acid (CAS 31792-47-9)
- 1-(4-Methoxyphenyl)-6-(methylthio)-4-oxo-1,4-dihydropyrimidine-5-carbonitrile (CAS 950272-26-1)
- Benzyl 2-hydroxypropanoate (CAS 2051-96-9)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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