Suvorexant Impurity 18 CAS 1785606-18-9
| CAS No. | 1785606-18-9 |
| Molecular Formula | C10H9N3O2 |
| Molecular Weight | 203.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Suvorexant Impurity 18.
CATO supplies Suvorexant Impurity 18 (CAS 1785606-18-9), a pharmacopoeial impurity reference standard (molecular formula C10H9N3O2, MW 203.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C10H9N3O2, Suvorexant Impurity 18 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Suvorexant Impurity 18 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 | C10H9N3O2 |
| Molecular Weight | 203.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
Related Suvorexant Standards
- Suvorexant intermediate II (CAS 956317-36-5)
- Suvorexant Impurity 13 (CAS 1149352-55-5)
- Suvorexant Impurity 16 (CAS 1824534-79-3)
- Suvorexant Impurity 17 (CAS 1293285-66-1)
- Suvorexant Impurity 39 (CAS 1293284-56-6)
- Suvorexant Impurity 32 (CAS 32850-82-1)
- Suvorexant Impurity 9 (CAS 2762965-06-8)
- Suvorexant Impurity 2 (CAS 1260619-38-2)
Recommended Standards
- Letrozole Impurity 25 (CAS 1250126-45-4)
- Alanyl Glutamine Impurity 45 (CAS CATO-C4X-197445)
- Teneligliptin Impurity 59 (CAS CATO-C4X-176059)
- Nitroso L-Arginine (CAS 2492451-27-9)
- Resmetirom impurity 74 (CAS 116688-45-0)
- Digoxin EP Impurity J (CAS 5355-48-6)
- Riociguat Impurity 9 (CAS 956010-88-1)
- 7-Bromo-2-(tert-butyl)-3,4-dihydronaphthalen-1(2H)-one (CAS 1257832-90-8)
- 1-(2-Fluoro-5-(trifluoromethoxy)phenyl)ethan-1-one (CAS 1532864-35-9)
- 3-[3-(4-Chloro-2-methylphenoxy)phenyl]-3-oxopropanenitrile (CAS 127389-40-6)
- 2H-Indazole-3-carboxylic acid (CAS 877309-58-5)
- (2S,3S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(((allyloxy)carbonyl)amino)butanoic acid (CAS 1272754-91-2)
- ethyl (2R,5R)-5-phenylpyrrolidine-2-carboxylate (CAS 932040-65-8)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
Why CATO?
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