3-(1H-Indol-2-yl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide CAS 21199-46-2
| CAS No. | 21199-46-2 |
| Molecular Formula | C19H25N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(1H-Indol-2-yl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide (CAS 21199-46-2) is a high-purity analytical reference standard with the molecular formula C19H25N3Br and a molecular weight of 375.33 g/mol.
The molecular framework of 3-(1H-Indol-2-yl)-1-(3-(trimethylammonio)propyl)pyridin-1-ium bromide (C19H25N3Br) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C19H25N3 2*Br |
| Molecular Weight | 375.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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)
- 1-(1H-indol-4-yl)ethanamine (CAS 1007877-69-1)
- 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
- octahydro-1H-pyrrolo[1,2-a][1,4]diazepin-1-one (CAS 109324-81-4)
- 2-fluoro-5-(2-oxoethyl)benzonitrile (CAS 1025727-38-1)
- 1-Bromo-3,5-Difluorobenzene-d3 (CAS 1219798-73-8)
- 2-Mercapto-5-methyl-nicotinonitrile (CAS 87373-59-9)
- 1-[2-(trifluoromethoxy)phenyl]-1H-pyrrole (CAS 259269-59-5)
- 2-(3,5-Dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-2-yl)acetic acid (CAS 95209-82-8)
- 4-Amino-2,5-bis(trifluoromethyl)benzoic acid (CAS 1805612-71-8)
- (Z)-3,4-Dimethoxy Cinnamic Acid (CAS 14737-88-3)
- Ornidazole Impurity 28 (CAS CATO-C4X-133128)
- Smac-N7 Peptide (CAS 401913-57-3)
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