Acotiamide Impurity 41 CAS 40283-41-8
| CAS No. | 40283-41-8 |
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Acotiamide Impurity 41 (C4H4N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Acotiamide Impurity 41 (CAS 40283-41-8) is a certified pharmaceutical impurity reference standard with the molecular formula C4H4N2O2S and a molecular weight of 144.15 g/mol.
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.
CATO manufactures Acotiamide Impurity 41 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.
Physical & Chemical Properties
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Acotiamide Standards
- Acotiamide Impurity M (CAS 118452-02-1)
- Acotiamide Impurity 21 (CAS 118452-04-3)
- Acotiamide Impurity 37 (CAS 610-90-2)
- Acotiamide Hydrochloride Impurity 67 (CAS 5398-36-7)
- Acotiamide Impurity 26 (CAS 67370-98-3)
- Acotiamide Impurity 40 (CAS 5981-37-3)
- Acotiamide Impurity 9 (CAS 948053-83-6)
- Acotiamide Impurity 32 (CAS 5653-53-2)
Recommended Standards
- Ticagrelor Impurity 137 (CAS 504-17-6)
- Thiophene impurity 5 (CAS CATO-C4X-25475)
- Pyrimidine-2-sulfinic acid (CAS 288400-79-3)
- Dimetridazole-d3 (CAS 64678-69-9)
- Trazodone Impurity 105 (CAS CATO-C4X-1772105)
- Rebamipide Impurity 2 (CAS 90098-06-9)
- Loratadine Impurity 91 (CAS CATO-C4X-142691)
- 5-Chloro-3-(3,5-dichlorophenyl)benzoic acid (CAS 1261914-46-8)
- 4-(Trifluoromethyl)benzyl 4-(1H-indol-3-yl)butanoate (CAS 860784-04-9)
- 2-(6,7-Dihydro-5H-indeno[5,6-b]furan-3-yl)-N-(2-((furan-2-ylmethyl)thio)ethyl)acetamide (CAS 869867-40-3)
- 2-(2-Isothiocyanatoethyl)tetrahydrofuran (CAS 1249941-39-6)
- 5,7-Dichloro-1H-[1,2,3]triazolo[4,5-b]pyridine (CAS 2091505-12-1)
- tert-Butyl 1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indole-2-carboxylate (CAS 627869-56-1)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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