N-Nitroso Cyproheptadine impurity 17
Impurity reference standard · Cyproheptadine
- CAS number
- 3979-11-1
- InChIKey
- UFDVFEGZFZMYMG-UHFFFAOYSA-N
- Molecular formula
- C20H18N2O
- Molecular weight
- 302.37
- Exact mass
- 302.1419 Da
About N-Nitroso Cyproheptadine impurity 17
N-Nitroso Cyproheptadine impurity 17 is a specified impurity of Cyproheptadine. It is registered under CAS number 3979-11-1.
The compound is characterised by its molecular formula C20H18N2O and a molecular weight of 302.37, with the two-dimensional structure shown above. Because it shares the Cyproheptadine scaffold, it is typically used to track process-related and degradation impurities of Cyproheptadine during method development, forced degradation and stability studies.
Computed from the structure, the compound has a monoisotopic mass of 302.1419 Da, a calculated LogP of 4.75, a topological polar surface area of 32.67 Ų. It presents 0 hydrogen-bond donors and 2 acceptors. These values are commonly used to anticipate chromatographic retention and to plan ionisation conditions during method development.
Each pack ships with a certificate of analysis together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Calculated properties
Derived from the two-dimensional structure above using RDKit. Computed values describe the parent structure and are provided as a reference for method development — they are not measured data.
- LogP (Crippen)
- 4.75
- Topological polar surface area
- 32.67 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 1
- Heavy atoms
- 23
- Rings
- 4
- Elemental composition
- C 79.44% · H 6.00% · N 9.26% · O 5.29%
Frequently asked questions
Does N-Nitroso Cyproheptadine impurity 17 come with a certificate of analysis?
Yes. Every pack ships with a certificate of analysis plus the supporting analytical data — HNMR, MS and HPLC or GC traces.
How is N-Nitroso Cyproheptadine impurity 17 uniquely identified?
The InChIKey UFDVFEGZFZMYMG-UHFFFAOYSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for N-Nitroso Cyproheptadine impurity 17?
Yes. The two-dimensional structure is drawn on this page from the SMILES record, and the SMILES or a molfile can be supplied on request.
What pack sizes are available for N-Nitroso Cyproheptadine impurity 17?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
Need this standard, or a related one?
Send the compound name, CAS number or a structure file — we confirm availability, pack size and lead time, usually within one business day.