5-Bromo-L-tryptophan CAS 25197-99-3
| CAS No. | 25197-99-3 |
| Molecular Formula | C11H11BrN2O2 |
| Molecular Weight | 283.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H11BrN2O2, 5-Bromo-L-tryptophan contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 283.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Bromo-L-tryptophan (CAS 25197-99-3), molecular formula C11H11BrN2O2 and molecular weight 283.12 g/mol, is a CATO reference standard with documented purity and traceability.
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 5-Bromo-L-tryptophan 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 | C11H11BrN2O2 |
| Molecular Weight | 283.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 1-(5-Bromo-2-fluoro-4-methylsulfonyl)-phenylhydrazine (CAS 1020722-17-1)
- Ethyl 3-bromo-5-methylimidazo[1,2-a]pyridine-2-carboxylate (CAS 1123167-64-5)
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- 6'-Bromo-1',2'-dihydrospiro[oxane-4,3'-pyrrolo[3,2-b]pyridine]-2'-one (CAS 1190862-19-1)
- Ethyl 5-bromo-4-methylbenzofuran-2-carboxylate (CAS 1192172-68-1)
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Recommended Standards
- 4-Bromo-L-tryptophan (CAS 52448-16-5)
- 6-Bromo-2-isopropyl-2H-indazole-4-carboxylic acid (CAS 2005426-90-2)
- 4-Bromo-5-(hydroxymethyl)-1-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 81122-69-2)
- 6-bromo-3-propyl-2,4(1H,3H)-quinazolinedione (CAS 200938-70-1)
- 1-Phenyl-2-(trifluoromethyl)-5-((trimethylsilyl)oxy)-1H-imidazole (CAS 1416373-02-8)
- 3-(3-Iodo-5-methylphenyl)pyridine (CAS 1214362-94-3)
- 1H,2H-pyrido[2,3-d]pyrimidin-2-one (CAS 91996-77-9)
- Methyl 2-[(4-piperidinyloxy)methyl]benzoatehydrochloride (CAS 1219976-67-6)
- 2,2’-Bis(trifluoromethyl)benzidine (CAS 341-58-2)
- Ethyl (2Z)-2-chloro-2-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}acetate (CAS 35229-84-6)
- 2-(2-Hydroxypropan-2-yl)-4-(methoxymethyl)thiazole-5-sulfonamide (CAS 2422107-71-7)
- 2-Chloro-4-[2-(trifluoromethyl)phenyl]-1,3-thiazole (CAS 1188038-00-7)
- N,N-Diethyl-N-methylethanaminium methyl carbonate (CAS 113840-08-7)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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