Acetylcysteine Impurity 25 CAS CATO-C4X-153225
| CAS No. | CATO-C4X-153225 |
| Molecular Formula | C15H22N2O10S4 |
| Molecular Weight | 518.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Acetylcysteine Impurity 25 (CAS CATO-C4X-153225) is a certified pharmaceutical impurity reference standard with the molecular formula C15H22N2O10S4 and a molecular weight of 518.60 g/mol.
Acetylcysteine Impurity 25 (C15H22N2O10S4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Acetylcysteine Impurity 25 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 | C15H22N2O10S4 |
| Molecular Weight | 518.60 g/mol |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 4 |
Related Acetylcysteine Standards
- Acetylcysteine impurity 64 (CAS CATO-C4X-153264)
- Acetylcysteine Impurity 75 (CAS CATO-C4X-153275)
- Acetylcysteine Impurity 26 (CAS CATO-C4X-153226)
- Acetylcysteine Impurity 27 (CAS CATO-C4X-153227)
- Acetylcysteine Impurity 76 (CAS CATO-C4X-153276)
- Acetylcysteine impurity 71 (CAS CATO-C4X-153271)
- Acetylcysteine impurity 61 (CAS CATO-C4X-153261)
- Acetylcysteine EP Impurity C (CAS 5545-17-5)
Recommended Standards
- Salbutamol Impurity 192 (CAS CATO-C4X-1176192)
- Olodaterol Impurity 29 (CAS CATO-C4X-194329)
- Ticagrelor Impurity 55 (CAS CATO-C4X-109355)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
- Tegoprazan Impurity 133 (CAS CATO-C4X-2297133)
- Doxapram Impurity 6 (CAS CATO-C4X-19736)
- Nicergoline Impurity 21 (CAS 23495-64-9)
- 1-Methyl-4-phenylimidazolidine (CAS 95646-38-1)
- Istradefylline Impurity 17 (Mixture of Diastereomers) (CAS CATO-C4X-106117)
- (2E)-1-{2-[(4-bromophenyl)sulfanyl]-4-methylquinolin-3-yl}-3-(4-fluorophenyl)prop-2-en-1-one (CAS 400074-53-5)
- 4-(Iodomethyl)-5-methyl-2-(p-tolyl)oxazole (CAS 501363-00-4)
- 4-Fluoro-2-methylbenzene-1-carbothioamide (CAS 1256482-73-1)
- 3-(3-Fluoro-4-methylphenyl)-1-methyl-1h-pyrazol-5-amine (CAS 1152647-59-0)
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
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