Acetylcysteine Impurity 7 CAS CATO-C4X-15327
| CAS No. | CATO-C4X-15327 |
| Molecular Formula | C14H20N2O3 |
| Molecular Weight | 264.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 264.32 g/mol gives Acetylcysteine Impurity 7 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Acetylcysteine Impurity 7 (CAS CATO-C4X-15327), a pharmacopoeial impurity reference standard (molecular formula C14H20N2O3, MW 264.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Acetylcysteine Impurity 7 (C14H20N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 264.32 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C14H20N2O3 |
| Molecular Weight | 264.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 32 (CAS 462-10-2)
- Acetylcysteine impurity 62 (CAS 64524-84-1)
- Acetylcysteine Impurity N2 (CAS 30452-69-8)
- Acetylcysteine impurity 69 (CAS CATO-C4X-153269)
- Acetylcysteine Impurity 40 (CAS 25779-79-7)
- Acetylcysteine Impurity 50 (CAS 24125-26-6)
- Acetylcysteine Impurity 36 (CAS 6020-39-9)
- Acetylcysteine EP Impurity A (CAS 56-89-3)
Recommended Standards
- Loxoprofen Impurity 160 (CAS CATO-C4X-1488160)
- 6, 7-dihydroxyisobutylast (CAS 101162-42-9)
- Venlafaxine Impurity 82 (CAS 121821-92-9)
- Lacosamide Impurity 28 (CAS CATO-C4X-183028)
- Atropine Impurity 22 (CAS 16052-33-8)
- Suzetrigine Impurity 21 (CAS CATO-C4X-336921)
- Cariprazine Impurity 56 (CAS CATO-C4X-240856)
- N-(2,4-Dimethylphenyl)-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carboxamide (CAS 339027-91-7)
- N,N-dimethyl-2-(piperidin-3-yl)ethan-1-amine dihydrochloride (CAS 1219960-73-2)
- 1-(2-Piperidin-4-ylethyl)azepane (CAS 96901-05-2)
- 3-(Prop-2-en-1-ylsulfanyl)-1H-1,2,4-triazole (CAS 39484-65-6)
- 4-Bromo-2-(difluoromethyl)-6-iodopyridine-3-methanol (CAS 1805366-13-5)
- 2(1H)-Pyridinone, 1-butyl-4-(4-phenyl-1-piperidinyl)- (CAS 1127499-59-5)
- Glucagon receptor antagonist I (CAS 438618-32-7)
Why CATO?
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