Penicillamine impurity 3 CAS CATO-C4X-29233
| CAS No. | CATO-C4X-29233 |
| Molecular Formula | C7H14N2O2S |
| Molecular Weight | 190.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H14N2O2S, Penicillamine impurity 3 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 190.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Penicillamine impurity 3 (CAS CATO-C4X-29233), a pharmacopoeial impurity reference standard (molecular formula C7H14N2O2S, MW 190.26 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), Penicillamine impurity 3 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 | C7H14N2O2S |
| Molecular Weight | 190.26 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Penicillamine Standards
- Penicillamine Impurity 1 (CAS 856846-79-2)
- L-Penicillamine-d6 (CAS 1795786-79-6)
- D-Penicillamine-d3 (CAS CATO-C4X-29234)
- L-Penicillamine (CAS 1113-41-3)
- D-Penicillamine (CAS 52-67-5)
- Penicillamine Impurity 2 (CAS CATO-CP155169)
- Penicillamine Impurity 1 (CAS 4458-32-6)
- DL-Penicillamine disulfide (CAS 312-10-7)
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Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com