Aztreonam USP RC A Sodium salt
Impurity reference standard
- CAS number
- 87500-74-1 (Free Base)
- InChIKey
- PSMATFVCZGYGSZ-VIQWXLMZSA-L
- Molecular formula
- C13H17N5Na2O9S2
- Molecular weight
- 497.41
- Exact mass
- 497.0263 Da
- Purity
- 95%+
- Appearance
- White to Off-White Solid
- Storage
- 2℃ ~ 8℃
About Aztreonam USP RC A Sodium salt
Aztreonam USP RC A Sodium salt is supplied as an analytical reference standard. It is registered under CAS number 87500-74-1.
The compound is characterised by its molecular formula C13H17N5Na2O9S2 and a molecular weight of 497.41, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 497.0263 Da, a calculated LogP of -2.26, a topological polar surface area of 208.60 Ų. It presents 4 hydrogen-bond donors and 12 acceptors. The structure carries 2 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)
- -2.26
- Topological polar surface area
- 208.60 Ų
- Hydrogen bond donors
- 4
- Hydrogen bond acceptors
- 12
- Rotatable bonds
- 10
- Heavy atoms
- 31
- Rings
- 1
- Defined stereocentres
- 2
- Elemental composition
- C 31.39% · H 3.44% · N 14.08% · Na 9.24% · O 28.95% · S 12.89%
Frequently asked questions
What purity does Aztreonam USP RC A Sodium salt ship at?
Aztreonam USP RC A Sodium salt is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does Aztreonam USP RC A Sodium salt 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 Aztreonam USP RC A Sodium salt uniquely identified?
The InChIKey PSMATFVCZGYGSZ-VIQWXLMZSA-L identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for Aztreonam USP RC A Sodium salt?
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 Aztreonam USP RC A Sodium salt?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should Aztreonam USP RC A Sodium salt 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.