4-(2-(1H-Indol-3-yl)ethyl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide CAS 21199-25-7
| CAS No. | 21199-25-7 |
| Molecular Formula | C21H29N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-(2-(1H-Indol-3-yl)ethyl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide (CAS 21199-25-7) is a high-purity analytical reference standard with the molecular formula C21H29N3Br and a molecular weight of 403.39 g/mol.
The molecular framework of 4-(2-(1H-Indol-3-yl)ethyl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide (C21H29N3Br) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H29N3 2*Br |
| Molecular Weight | 403.39 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related H Standards
- 1-(1h-Indol-3-yl)-2-methylpropan-2-ol (CAS 10006-90-3)
- 2-(1H-Indol-3-yl)propan-1-ol (CAS 10006-92-5)
- 1H-INdol-5-amine, 4-ethyl- (CAS 1003858-71-6)
- 2-(Indol-3-yl)ethylisocyanide (CAS 100571-64-0)
- 1-(1H-Indol-7-yl)ethanamine (CAS 1007877-68-0)
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- 1-((1H-indol-3-yl)methyl)piperidine-4-carboxylic acid (CAS 100957-76-4)
- 2-(1H-Indol-3-yl)-2-(pyrrolidin-1-yl)acetic acid (CAS 1010916-05-8)
Recommended Standards
- 2-(Isoxazol-5-yl)-N,N-dimethylacetamide (CAS 930773-35-6)
- 2-[4-(2-amino-4-chlorophenyl)piperazin-1-yl]ethan-1-ol (CAS 946812-10-8)
- 2-(7-(4-Fluorophenyl)-1H-indol-3-yl)acetonitrile (CAS 1214390-94-9)
- 2-(Mercaptoamino)-1H-pyrrolo[2,3-d]pyrimidin-4(7H)-one (CAS 65062-58-0)
- Syzalterin (CAS 94451-48-6)
- H-Lys(Z)-OH (CAS 1155-64-2)
- 1-(difluoromethyl)-5-methyl-1H-pyrazol-4-amine,HCl (CAS 1431968-01-2)
- 4,5,5,5-Tetrafluoro-4-(perfluoropropoxy)pentan-1-ol (CAS 243128-41-8)
- (R)-8,8'-Bis(3,5-bis(trifluoromethyl)phenyl)-2,2',3,3'-tetrahydro-1,1'-spirobi[phenalene]-9,9'-diol (CAS 2687968-84-7)
- Neuropeptide Y (porcine) trifluoroacetate salt (CAS 83589-17-7)
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