Acetylcysteine Impurity 14 CAS 62305-89-9
| CAS No. | 62305-89-9 |
| Molecular Formula | C5H7NO3S |
| Molecular Weight | 161.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Acetylcysteine Impurity 14 (C5H7NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 161.18 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.
CATO supplies Acetylcysteine Impurity 14 (CAS 62305-89-9), a pharmacopoeial impurity reference standard (molecular formula C5H7NO3S, MW 161.18 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Acetylcysteine Impurity 14 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H7NO3S |
| Molecular Weight | 161.18 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity N1 (CAS 6436-58-4)
- Acetylcysteine Impurity 37 (CAS 155172-79-5)
- Acetylcysteine Impurity 22 (CAS 60333-15-5)
- Acetylcysteine Impurity 20 (CAS CATO-C4X-153220)
- N-Acetylcysteine-d3 (CAS 131685-11-5)
- Acetylcysteine Impurity 41 (CAS 13100-82-8)
- Acetylcysteine Impurity 34 (CAS 2381-08-0)
- Acetylcysteine Impurity 12 (CAS 1115-65-7)
Recommended Standards
- 3-cyclopropyl-4-fluorobenzonitrile (CAS 1260539-08-9)
- Carbocisteine Impurity 19 (CAS 14226-97-2)
- 5-Nitrothiophene-2-carboxaldehyde 5-nitro-2-thiophenecarboxaldehyde 5-Nitrothiophene-2-carbaldehyde 5-nitro-thiophene-2-carbaldehyde 5-nitro-2-thiophenecarbaldehyde 4521-33-9 (CAS 4521-33-9)
- p-nitrobenzaldehyde-2,3,5,6-d<SUB>4</SUB> (CAS 1020718-72-2)
- Milnacipran Impurity 17 (CAS CATO-C4X-103317)
- Rosuvastatin Impurity 61 (CAS 124752-23-4)
- Budesonide EP Impurity J (Mixture of Diastereomers) (CAS 313474-59-8)
- Diosgenin (CAS 512-04-9)
- Bis(pyridin-4-ylmethyl)amine hydrochloride (CAS 143230-55-1)
- 2-(5-Amino-1H-1,2,4-triazol-3-yl)phenol (CAS 54417-01-5)
- Red sensitizer Brk 5714 (CAS 23216-67-3)
- 2-Methyl-5-(p-tolyl)furan-3-carboxylic acid (CAS 111787-86-1)
- 5-Methylpyrazolo[1,5-b]pyridazine-3-carboxylic acid (CAS 1260384-84-6)
- Liraglutide (14-31)TFA Salt (CAS CATO-C4X-19927)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com