Metaraminol Impurity 7 CAS 36699-79-3
| CAS No. | 36699-79-3 |
| Molecular Formula | 2*C9H13NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 283.28 g/mol gives Metaraminol Impurity 7 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Metaraminol Impurity 7 (CAS 36699-79-3) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13NO2C4H4O4 and a molecular weight of 283.28 g/mol.
Structurally, Metaraminol Impurity 7 (C9H13NO2C4H4O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 283.28 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Metaraminol Impurity 7 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | 2*C9H13NO2 C4H4O4 |
| Molecular Weight | 283.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Related Metaraminol Standards
- Metaraminol Impurity 12 (CAS 130826-91-4)
- Metaraminol Impurity 15 (CAS 13103-80-5)
- Metaraminol impurity 104 (CAS 1379208-51-1)
- Metaraminol Impurity 68 (CAS 1379208-51-1（free base）)
- Metaraminol Impurity 89 (CAS 1602857-88-4)
- Metaraminol Impurity 20 (CAS 1602857-90-8)
- Metaraminol Impurity 21 (CAS 1602857-94-2)
- Metaraminol Impurity 36 (CAS 1700-37-4)
Recommended Standards
- Nimesulide EP Impurity G (CAS 70995-08-3)
- Cefdinir CP Impurity H (CAS CATO-C4X-121022)
- Pemafibrate Impurity 27 (CAS CATO-C4X-290327)
- 4-Amino-2-fluoro-5-nitrobenzenesulfonyl chloride (CAS 2550442-23-2)
- 2-(4-Bromo-6-(difluoromethyl)pyridin-2-yl)acetic acid (CAS 1805031-42-8)
- (1R,4r)-4-(trifluoromethoxy)cyclohexan-1-amine (CAS 1403865-70-2)
- 4-(2,4-Dichlorophenoxy)-N-isopropyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 339011-46-0)
- 2-Hydroxyethyl N-Amyl Sulfide (CAS 26901-96-2)
- Delta-Decanolactone (CAS 705-86-2)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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