Acetylcysteine Impurity 10 HCl CAS 907565-13-3(Free Acid)
| CAS No. | 907565-13-3(Free Acid) |
| Molecular Formula | C7H11NO6S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Acetylcysteine Impurity 10 HCl (CAS 907565-13-3(Free Acid)) is a certified pharmaceutical impurity reference standard with the molecular formula C7H11NO6SHCl and a molecular weight of 273.68 g/mol.
Based on its molecular formula C7H11NO6SHCl, Acetylcysteine Impurity 10 HCl contains a carbohydrate-derived structure, an amide group, a sulfone group, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 273.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C7H11NO6S HCl |
| Molecular Weight | 273.68 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 12 (CAS 1115-65-7)
- Acetylcysteine Impurity 41 (CAS 13100-82-8)
- N-Acetylcysteine-d3 (CAS 131685-11-5)
- Acetylcysteine Impurity 33 (CAS 15058-19-2)
- Acetylcysteine Impurity 37 (CAS 155172-79-5)
- Acetylcysteine Impurity 18 (CAS 1637-71-4)
- Acetylcysteine impurity 66 (CAS 16708-09-1)
- Acetylcysteine EP Impurity D (CAS 18725-37-6)
Recommended Standards
- Ketotifen Impurity 23 (CAS 111428-56-9)
- Ziprasidone impurity 50 (CAS 128396-56-5)
- Erlotinib Impurity 91 (CAS 1354727-63-1)
- Ethyl 2-[3-(4-methoxyphenyl)-7h-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl]acetate (CAS 565207-39-8)
- 4-Hydroxy-3-methyl-4-nitro-1-phenyl-1H-pyrazol-5(4H)-one (CAS 114214-89-0)
- tert-Butyl((3-methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)oxy)dimethylsilane (CAS 2158298-42-9)
- 1-(Ethylsulfonyl)piperidine-4-carbonitrile (CAS 936482-02-9)
- 5-Bromo-3-(1-phenyl-1H-pyrazol-4-yl)benzo[d]isoxazole (CAS 651727-99-0)
- 5-Chloro-8-hydrazinylquinoline (CAS 446830-53-1)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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