Tetrabenazine Impurity 19 CAS 52111-74-7
| CAS No. | 52111-74-7 |
| Molecular Formula | C16H20N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tetrabenazine Impurity 19.
Tetrabenazine Impurity 19 (CAS 52111-74-7), molecular formula C16H20NI and molecular weight 353.24 g/mol, is a CATO reference standard with documented purity and traceability.
Tetrabenazine Impurity 19 (C16H20NI) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, iodine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C16H20N I |
| Molecular Weight | 353.24 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Tetrabenazine Standards
- Tetrabenazine Impurity C298 (CAS 100322-43-8)
- Tetrabenazine Impurity 1 (CAS 1065193-59-0)
- Tetrabenazine Impurity C19 (CAS 1069-62-1)
- Tetrabenazine Impurity 6 (CAS 1159511-98-4)
- Tetrabenazine Impurity 65 HCl (CAS 1162658-07-2 (free base))
- Tetrabenazine Impurity 7 (CAS 1187-87-7)
- Tetrabenazine Impurity 48 (CAS 1214267-46-5)
- Tetrabenazine Impurity 15 (CAS 1256550-62-5)
Recommended Standards
- Trans-Deltamethrin (CAS 64363-96-8)
- Methyl 2-hydroxy-2-(1-methyl-1h-pyrazol-5-yl)acetate (CAS 1494859-99-2)
- 2-(4-Bromo-5-(difluoromethyl)-6-iodopyridin-2-yl)acetic acid (CAS 1805418-70-5)
- Nintedanib Impurity 131 (CAS CATO-C4X-1814131)
- Ethyl 6-(2,3-difluorophenyl)-6-oxohexanoate (CAS 898753-00-9)
- Benzyl (1-((S)-2-amino-3-methylbutanoyl)pyrrolidin-3-yl)carbamate (CAS 1354029-55-2)
- Brivaracetam Impurity 35 (CAS 22530-99-0)
- 1-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4(2H)-one (CAS 767237-00-3)
- 3-Amino-N-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propanamide (CAS 1452577-79-5)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
Why CATO?
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