Choline-d9 Bromide (N,N,N-trimethyl-d9) CAS 285979-71-7
| CAS No. | 285979-71-7 |
| Molecular Formula | - |
| 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.
Choline-d9 Bromide (N,N,N-trimethyl-d9) (CAS 285979-71-7) is a high-purity analytical reference standard with the molecular formula C5H5D9NOBr and a molecular weight of 193.13 g/mol.
The molecular framework of Choline-d9 Bromide (N,N,N-trimethyl-d9) (C5H5D9NOBr) is characterized by deuterium isotope labeling, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Choline-d9 Bromide (N,N,N-trimethyl-d9) 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 | C5H5D9NO Br |
| Molecular Weight | 193.13 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Benzoyl-d5 Chloride (CAS 43019-90-5)
- 1-[2-(Dimethylamino)ethyl]-5-oxopyrrolidine-3-carboxamide (CAS 1219827-73-2)
- 1-(1-(2-(Dimethylamino)ethyl)-1H-indazol-5-yl)thiourea (CAS 860785-95-1)
- (2,2-dimethyloxan-4-yl)methanol (CAS 50675-23-5)
- 2-(3,5-Dimethylphenyl)-3,3,3-trifluoropropan-1-amine (CAS 1491869-32-9)
- Angiotensin III Antipeptide (CAS 133605-55-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com