N-Nitroso Etilefrine EP Impurity F CAS 20689-96-7
| CAS No. | 20689-96-7 |
| Molecular Formula | C9H12N2O |
| Molecular Weight | 164.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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.
N-Nitroso Etilefrine EP Impurity F (CAS 20689-96-7) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12N2O and a molecular weight of 164.20 g/mol.
Structurally, N-Nitroso Etilefrine EP Impurity F (C9H12N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 164.20 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C9H12N2O |
| Molecular Weight | 164.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related N Standards
- N-Nitroso-N-propylaniline (CAS 19788-34-2)
- N-Nitroso-N-Isopropylaniline (CAS 24642-83-9)
- S-Nitroso-L-homocysteine (CAS 139427-42-2)
- S-Nitroso-DL-homocysteine (CAS 187878-81-5)
- 4-Nitroso-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 63169-10-8)
- N-nitroso-N-phenylacetamide (CAS 938-81-8)
- N-Nitroso Adenine (CAS 2615274-45-6)
- 7-Nitroso-7H-purin-6-ol (CAS CATO-C3D-26213)
Recommended Standards
- Ibuprofen EP Impurity D (CAS 938-94-3)
- Benidipine Impurity 55 (CAS CATO-C4X-112055)
- 2,3,5,6-Tetramethylcyclohexa-2,5-diene-1,4-dione (CAS 527-17-3)
- Methotrexate Impurity 62 (CAS 942840-87-1)
- Lacidipine Impurity 6 (CAS CATO-C4X-16716)
- Methotrexate Impurity 60 (CAS CATO-C4X-115460)
- Mianserin Impurity 60 (CAS 21535-46-6)
- H-Tyr(SO3H)-OH (CAS 956-46-7)
- 1-(4-Methoxybenzyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione (CAS 169504-53-4)
- (R)-Methyl 3-amino-4-phenylbutanoate hydrochloride (CAS 178665-35-5)
- 5-(hydroxymethyl)furan-3-carboxylic acid (CAS 246178-75-6)
- N-(4-(Dimethylamino)phenyl)-1-(thiophen-2-yl)cyclopentane-1-carboxamide (CAS 1049555-57-8)
- 2-(2-Chloro-6-(difluoromethyl)-3-methoxypyridin-4-yl)acetonitrile (CAS 1805413-31-3)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com