Neostigmine Impurity 13 CAS 4939-59-7
| CAS No. | 4939-59-7 |
| Molecular Formula | C12H17N3O3 |
| Molecular Weight | 251.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Neostigmine Impurity 13.
As a process- or degradation-related impurity, Neostigmine Impurity 13 (CAS 4939-59-7, C12H17N3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C12H17N3O3, Neostigmine Impurity 13 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures Neostigmine Impurity 13 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H17N3O3 |
| Molecular Weight | 251.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Neostigmine Standards
- Neostigmine Impurity 51 (CAS 867020-61-9)
- Neostigmine impurity 47 (CAS CATO-C4X-204247)
- Neostigmine Impurity 1 (CAS CATO-C4X-20421)
- Neostigmine Impurity N1 (CAS 2434689-89-9)
- Neostigmine Impurity 50 (CAS 16460-28-9)
- Neostigmine (CAS 59-99-4)
- Neostigmine impurity 33 (CAS CATO-C4X-204233)
- Neostigmine Impurity 27 (CAS 63468-95-1)
Recommended Standards
- Voglibose Impurity 26 (CAS CATO-C4X-178026)
- Roxadustat Impurity 116 (CAS CATO-C4X-2213116)
- Metoclopramide Impurity 84 (CAS 2486-67-1)
- Carteolol EP Impurity F (CAS 2748462-60-2)
- Riluzole impurity 20 (CAS 1644-88-8)
- Crisaborole lmpurity 99 (CAS 2981430-50-4)
- Caffeine EP Impurity E (CAS 20041-90-1)
- n-Carbamoyl-2-((3-ethynylphenyl)amino)acetamide (CAS 1020933-52-1)
- 2-(Phenylamino)butanehydrazide (CAS 29417-71-8)
- Rel-(1R,2S)-2-(2,5-dimethylphenyl)cyclohexan-1-ol (CAS 877209-68-2)
- 1-(2-Chloro-4-fluorobenzyl)-1H-pyrazol-4-ol (CAS 1592725-46-6)
- N-(5-Amino-2-fluorophenyl)-2,2-dimethylpropanamide (CAS 891855-90-6)
- Ethyl 3-(4-hydroxyphenyl)-3-oxopropanoate (CAS 77103-47-0)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
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