Acetylcysteine Impurity 27 CAS CATO-C4X-153227
| CAS No. | CATO-C4X-153227 |
| Molecular Formula | C12H20N2O6S3 |
| Molecular Weight | 384.49 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 27 (CAS CATO-C4X-153227) is a certified pharmaceutical impurity reference standard with the molecular formula C12H20N2O6S3 and a molecular weight of 384.49 g/mol.
Acetylcysteine Impurity 27 (C12H20N2O6S3) 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. 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).
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 | C12H20N2O6S3 |
| Molecular Weight | 384.49 g/mol |
| Purity | 97%+ |
| 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 |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 26 (CAS CATO-C4X-153226)
- 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)
- Acetylcysteine Impurity 75 (CAS CATO-C4X-153275)
- Acetylcysteine impurity 74 (CAS CATO-C4X-153274)
- Acetylcysteine Impurity 6 (CAS 55748-93-1)
Recommended Standards
- N-(3-(2-Oxopiperidin-1-yl)phenyl)-5,6,7,8-tetrahydronaphthalene-2-sulfonamide (CAS 941939-57-7)
- Cobicistat impurity (CAS 1004316-92-0)
- N-(2-(Phenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)cyclopentanecarboxamide (CAS 954612-89-6)
- 1-(5-(3-Hydroxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methylpiperazin-1-yl)ethan-1-one (CAS 899724-50-6)
- Cenobamate Impurity 16 (CAS 1259059-74-9)
- Evocalcet impurity 59 (CAS CATO-C4X-248559)
- Desmopressin Impurity 20 (CAS CATO-C4X-221520)
- 6-(2-Methoxyethoxy)nicotinaldehyde (CAS 894802-19-8)
- methyl trans-2-(3-aminocyclobutyl)acetate;hydrochloride (CAS 2361594-95-6)
- 3-{[1-(tert-Butoxycarbonyl)-3-pyrrolidinyl]methyl}benzoic acid (CAS 1158746-41-8)
- 1-Benzofuran-2-yl(pyridin-4-yl)methanamine dihydrochloride (CAS 1311317-80-2)
- 3-Amino-6-bromo-2,3-dihydrobenzofuran (CAS 944709-63-1)
- 4,4-dimethoxycyclohexan-1-one (CAS 56180-50-8)
- D-Pro37-Tirzepatide (CAS CATO-CPTD788902)
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