rac-Timolol
Impurity reference standard
- CAS number
- 29023-48-1
- InChIKey
- BLJRIMJGRPQVNF-UHFFFAOYSA-N
- Molecular formula
- C13H24N4O3S
- Molecular weight
- 316.42
- Exact mass
- 316.1569 Da
- Purity
- 95%+
- Appearance
- Yellow Oil
- Storage
- 2℃ ~ 8℃
About rac-Timolol
rac-Timolol is supplied as an analytical reference standard. It is registered under CAS number 29023-48-1.
The compound is characterised by its molecular formula C13H24N4O3S and a molecular weight of 316.42, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 316.1569 Da, a calculated LogP of 0.50, a topological polar surface area of 79.74 Ų. It presents 2 hydrogen-bond donors and 8 acceptors. The structure carries 1 defined stereocentre, 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)
- 0.50
- Topological polar surface area
- 79.74 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 8
- Rotatable bonds
- 6
- Heavy atoms
- 21
- Rings
- 2
- Defined stereocentres
- 1
- Elemental composition
- C 49.35% · H 7.65% · N 17.71% · O 15.17% · S 10.13%
Frequently asked questions
What purity does rac-Timolol ship at?
rac-Timolol is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does rac-Timolol 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 rac-Timolol uniquely identified?
The InChIKey BLJRIMJGRPQVNF-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 rac-Timolol?
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 rac-Timolol?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should rac-Timolol 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.