Tamsulosin Impurity 40 CAS 80223-79-6
| CAS No. | 80223-79-6 |
| Molecular Formula | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tamsulosin Impurity 40 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Tamsulosin Impurity 40 (CAS 80223-79-6), a pharmacopoeial impurity reference standard (molecular formula C10H11ClO4S, MW 262.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tamsulosin Impurity 40 (C10H11ClO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 262.71 g/mol, it falls into the medium-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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Tamsulosin Standards
- Tamsulosin Impurity 21 (CAS 1396967-49-9)
- Tamsulosin Impurity 48 (CAS 3259-03-8)
- Tamsulosin Impurity 62 (CAS 54646-18-3)
- Tamsulosin Impurity 32 (CAS 112244-38-9)
- Tamsulosin EP Impurity B (CAS 112101-81-2)
- Tamsulosin Impurity 44 (CAS 119714-13-5)
- Tamsulosin Impurity 41 (CAS CATO-C4X-118741)
- Tamsulosin Impurity 19 (CAS 116091-63-5)
Recommended Standards
- 898787-91-2 3-(4-Chlorophenyl)-1-(3-fluorophenyl)propan-1-one DTXSID30644476 (CAS 898787-91-2)
- N-Nitroso Chlorophenothiazine (CAS 2892260-30-7)
- 1-chloranylbenzo[e][1]benzothiole-2-carboxylic acid 1-chloro-2-benzo[e][1]benzothiolecarboxylic acid 85589-69-1 A841373 (CAS 85589-69-1)
- 1-(2-Chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidine-4-thiol (CAS 1082528-89-9)
- Baloxavir Marboxil Impurity 195 (CAS CATO-C4X-2108195)
- Terazosin EP Impurity G (CAS 105356-89-6)
- Prilocaine impurity 38 (CAS 2729898-89-7)
- Colesevelam impurity 2 (CAS 33968-67-1)
- Methyl 5-(piperazin-1-yl)pentanoate (CAS 62522-30-9)
- 2,2-Dimethylpropyl N-[(E)-2-(furan-2-yl)ethenyl]carbamate (CAS 338399-68-1)
- 5-Chloro-N-cyclopropylpicolinamide (CAS 1289212-90-3)
- 3-(chloromethyl)-3-(fluoromethyl)oxetane (CAS 74465-76-2)
- 1,4-Diacetoxybutane (CAS 628-67-1)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com