Sivelestat sodium tetrahydrate CAS 201677-61-4
| CAS No. | 201677-61-4 |
| Molecular Formula | C20H21N2O7S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Sivelestat sodium tetrahydrate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Sivelestat sodium tetrahydrate (CAS 201677-61-4) is a high-purity analytical reference standard with the molecular formula C20H21N2O7SNaH2O and a molecular weight of 474.46 g/mol.
Structurally, Sivelestat sodium tetrahydrate (C20H21N2O7SNaH2O) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.5, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 474.46 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H21N2O7S Na 4*H2O |
| Molecular Weight | 474.46 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Sivelestat Standards
- Sivelestat Impurity 17 (CAS 10167-30-3)
- Sivelestat Impurity 7 (CAS 1071827-84-3)
- Sivelestat Impurity 9 (CAS 1094231-79-4)
- Sivelestat (CAS 127373-66-4)
- Sivelestat sodium Impurity 5 (CAS 127373-95-9)
- Sivelestat Impurity 18 (CAS 150374-97-3)
- Sivelestat Impurity 13 (CAS 150374-98-4)
- Sivelestat sodium Impurity 2 (CAS 150374-99-5)
Recommended Standards
- Tert-butyl ((2R,3R)-4'-chloro-2-(hydroxymethyl)-2,3,4,5-tetrahydro-[1,1'-biphenyl]-3-yl)carbamate (CAS 2161335-83-5)
- Methyl 4-amino-3-[(4-chlorobenzenesulfonyl)methyl]benzoate (CAS 339016-38-5)
- Ethyl 2-amino-3-(methylthio)propanoate hydrochloride (CAS 61786-58-1)
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(2-hydroxyphenyl)guanidine (CAS 354993-68-3)
- 1-(2-Methylphenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1279219-64-5)
- 3-(1,3-Dioxolan-2-yl)-2-methyl-1H-indole (CAS 773094-30-7)
- 5-methyl-3H,4H-pyrazolo[3,2-f][1,2,4]triazin-4-one (CAS 150017-69-9)
- Benzyl 2-Methoxy-2-methylpropionate (CAS 1363165-96-1)
- 1-(2-Methylthiazol-4-yl)cyclopropanamine (CAS 1159733-49-9)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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