Atracurium Impurity 35 CAS 73841-84-6
| CAS No. | 73841-84-6 |
| Molecular Formula | C20H23NO4 |
| Molecular Weight | 341.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Atracurium Impurity 35 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Atracurium Impurity 35 (CAS 73841-84-6, C20H23NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C20H23NO4, Atracurium Impurity 35 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 341.40 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.
As a certified reference material (CRM), Atracurium Impurity 35 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 | C20H23NO4 |
| Molecular Weight | 341.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 1 |
Related Atracurium Standards
- Atracurium Impurity N8 (CAS 4747-98-2)
- Atracurium EP Impurity G (CAS 1699-51-0)
- Atracurium Impurity 40 (CAS 109717-73-9)
- Atracurium EP Impurity F (CAS 34866-20-1)
- Atracurium impurity 103 (CAS 872807-64-2)
- Atracurium Impurity 105 (CAS CATO-C4X-1850105)
- Atracurium Impurity 118 (CAS 24734-71-2)
- Atracurium Impurity 75 (CAS CATO-C4X-185075)
Recommended Standards
- Lacosamide EP Impurity I (CAS CATO-C4X-183048)
- Solriamfetol Impurity 15 (CAS CATO-C4X-256315)
- Lacosamide EP Impurity I(R-Isomer) (CAS 2295925-90-3)
- Solriamfetol Impurity 4 (CAS CATO-C4X-25634)
- Alfacalcidol EP Impurity A (CAS 65445-14-9)
- Neratinib Impurity 61 (CAS CATO-C4X-113461)
- RSS0343 Impurity 2 (CAS CATO-C4X-32722)
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- Ethyl 2-((5-chloro-2-methoxyphenyl)thio)-2-oxoacetate (CAS 1443342-38-8)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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