Boc-D-Tyr(2-bromo-Z)-OH CAS 81189-61-9
| CAS No. | 81189-61-9 |
| Molecular Formula | C22H24BrNO7 |
| Molecular Weight | 494.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 494.33 g/mol gives Boc-D-Tyr(2-bromo-Z)-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Boc-D-Tyr(2-bromo-Z)-OH (CAS 81189-61-9) is a high-purity analytical reference standard with the molecular formula C22H24BrNO7 and a molecular weight of 494.33 g/mol.
The molecular framework of Boc-D-Tyr(2-bromo-Z)-OH (C22H24BrNO7) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Boc-D-Tyr(2-bromo-Z)-OH 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 | C22H24BrNO7 |
| Molecular Weight | 494.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-[(2,6-Dichlorophenyl)methanesulfonyl]-N-[4-(trifluoromethyl)phenyl]thiophene-2-carboxamide (CAS 251097-09-3)
- Boc-Tyr(2-bromo-Z)-OH (CAS 47689-67-8)
- 3-((2,6-Dichlorobenzyl)sulfonyl)-N-(3-(trifluoromethyl)phenyl)thiophene-2-carboxamide (CAS 251097-57-1)
- 2-[(5-{[(4-Iodo-2-methylphenyl)amino]methyl}-4-phenyl-4H-1,2,4-triazol-3-yl)thio]acetohydrazide (CAS 1071296-21-3)
- 2-Cyano-N-methylacetohydrazide (CAS 89124-87-8)
- 5-Bromo-4-cyclopropoxy-2-(trifluoromethyl)pyridine (CAS 1243375-68-9)
- 4-(Dimethoxymethyl)benzaldehyde (CAS 103781-93-7)
- 2-Bromo-5-fluorophenylboronic acid pinacol ester (CAS 2121513-85-5)
- 5-Methoxy-1H-indol-2-amine (CAS 1379362-54-5)
- 10-oxo-2,3,7,11-tetrazatricyclo[7.4.0.0²⁶]trideca-1(9),3,5,7,12-pentaene-5-carboxylic acid (CAS 776266-25-2)
- N-(5-amino-2-methylphenyl)formamide (CAS 6399-94-6)
- 3',6'-Bis(diethylamino)-2-(4-nitrophenyl)spiro[isoindoline-1,9'-xanthen]-3-one (CAS 29199-09-5)
- Ethyl 2,5-dimethyl-1-(p-tolyl)-1H-pyrrole-3-carboxylate (CAS 861582-97-0)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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