(R)-Colchicine
Impurity reference standard
- CAS number
- 75520-89-7
- InChIKey
- IAKHMKGGTNLKSZ-MRXNPFEDSA-N
- Molecular formula
- C22H25NO6
- Molecular weight
- 399.44
- Exact mass
- 399.1682 Da
- Purity
- 95%+
- Appearance
- Pale Yellow to Light Yellow Solid
- Storage
- -20℃±5℃
About (R)-Colchicine
(R)-Colchicine is supplied as an analytical reference standard. It is registered under CAS number 75520-89-7.
The compound is characterised by its molecular formula C22H25NO6 and a molecular weight of 399.44, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 399.1682 Da, a calculated LogP of 2.87, a topological polar surface area of 83.09 Ų. It presents 1 hydrogen-bond donor and 6 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: -20℃±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)
- 2.87
- Topological polar surface area
- 83.09 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 5
- Heavy atoms
- 29
- Rings
- 3
- Defined stereocentres
- 1
- Elemental composition
- C 66.15% · H 6.31% · N 3.51% · O 24.03%
Frequently asked questions
What purity does (R)-Colchicine ship at?
(R)-Colchicine is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does (R)-Colchicine 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 (R)-Colchicine uniquely identified?
The InChIKey IAKHMKGGTNLKSZ-MRXNPFEDSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for (R)-Colchicine?
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 (R)-Colchicine?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should (R)-Colchicine be stored?
Recommended storage: -20℃±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.