(4-9)-Oxytocin
Impurity reference standard
- CAS number
- 72098-65-8
- InChIKey
- QTPBCDZBQZEKGU-WOYTXXSLSA-N
- Molecular formula
- C25H43N9O8S
- Molecular weight
- 629.73
- Exact mass
- 629.2955 Da
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- 2℃ ~ 8℃
About (4-9)-Oxytocin
(4-9)-Oxytocin is supplied as an analytical reference standard. It is registered under CAS number 72098-65-8.
The compound is characterised by its molecular formula C25H43N9O8S and a molecular weight of 629.73, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 629.2955 Da, a calculated LogP of -4.52, a topological polar surface area of 292.00 Ų. It presents 9 hydrogen-bond donors and 10 acceptors. The structure carries 5 defined stereocentres, which is relevant wherever a stereochemically defined standard is required. 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 reporting purity of 95%+ 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. Recommended storage: 2℃ ~ 8℃.
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)
- -4.52
- Topological polar surface area
- 292.00 Ų
- Hydrogen bond donors
- 9
- Hydrogen bond acceptors
- 10
- Rotatable bonds
- 18
- Heavy atoms
- 43
- Rings
- 1
- Defined stereocentres
- 5
- Elemental composition
- C 47.68% · H 6.88% · N 20.02% · O 20.32% · S 5.09%
Frequently asked questions
What purity does (4-9)-Oxytocin ship at?
(4-9)-Oxytocin is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does (4-9)-Oxytocin 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 (4-9)-Oxytocin uniquely identified?
The InChIKey QTPBCDZBQZEKGU-WOYTXXSLSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for (4-9)-Oxytocin?
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 (4-9)-Oxytocin?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should (4-9)-Oxytocin be stored?
Recommended storage: 2℃ ~ 8℃.
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.