Carbocysteine/Carbocisteine
Impurity reference standard
- CAS number
- 638-23-3
- InChIKey
- GBFLZEXEOZUWRN-VKHMYHEASA-N
- Molecular formula
- C5H9NO4S
- Molecular weight
- 179.19
- Exact mass
- 179.0252 Da
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- 2℃ ~ 8℃
About Carbocysteine/Carbocisteine
Carbocysteine/Carbocisteine is supplied as an analytical reference standard. It is registered under CAS number 638-23-3.
The compound is characterised by its molecular formula C5H9NO4S and a molecular weight of 179.19, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 179.0252 Da, a calculated LogP of -0.78, a topological polar surface area of 100.62 Ų. It presents 3 hydrogen-bond donors and 4 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)
- -0.78
- Topological polar surface area
- 100.62 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 5
- Heavy atoms
- 11
- Rings
- 0
- Defined stereocentres
- 1
- Elemental composition
- C 33.51% · H 5.06% · N 7.82% · O 35.71% · S 17.89%
Frequently asked questions
What purity does Carbocysteine/Carbocisteine ship at?
Carbocysteine/Carbocisteine is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does Carbocysteine/Carbocisteine 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 Carbocysteine/Carbocisteine uniquely identified?
The InChIKey GBFLZEXEOZUWRN-VKHMYHEASA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for Carbocysteine/Carbocisteine?
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 Carbocysteine/Carbocisteine?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should Carbocysteine/Carbocisteine 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.