11-cis Retinal
Impurity reference standard
- CAS number
- 564-87-4
- InChIKey
- NCYCYZXNIZJOKI-IOUUIBBYSA-N
- Molecular formula
- C20H28O
- Molecular weight
- 284.44
- Exact mass
- 284.2140 Da
- Purity
- 95%+
- Appearance
- Yellow Solution
- Storage
- -80℃±5℃
About 11-cis Retinal
11-cis Retinal is supplied as an analytical reference standard. It is registered under CAS number 564-87-4.
The compound is characterised by its molecular formula C20H28O and a molecular weight of 284.44, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 284.2140 Da, a calculated LogP of 5.72, a topological polar surface area of 17.07 Ų. It presents 0 hydrogen-bond donors and 1 acceptor. 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: -80℃±5℃.
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)
- 5.72
- Topological polar surface area
- 17.07 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 5
- Heavy atoms
- 21
- Rings
- 1
- Elemental composition
- C 84.45% · H 9.92% · O 5.62%
Frequently asked questions
What purity does 11-cis Retinal ship at?
11-cis Retinal is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does 11-cis Retinal 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 11-cis Retinal uniquely identified?
The InChIKey NCYCYZXNIZJOKI-IOUUIBBYSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for 11-cis Retinal?
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 11-cis Retinal?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should 11-cis Retinal be stored?
Recommended storage: -80℃±5℃.
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.