Gadoxetate Impurity 36 CAS CATO-C4X-261836
| CAS No. | CATO-C4X-261836 |
| Molecular Formula | C22H26N3O11 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Gadoxetate Impurity 36 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.
CATO supplies Gadoxetate Impurity 36 (CAS CATO-C4X-261836), a pharmacopoeial impurity reference standard (molecular formula C22H26N3O11CdLi, MW 627.81 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Gadoxetate Impurity 36 (C22H26N3O11CdLi) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 627.81 g/mol, it falls into the high-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.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C22H26N3O11 Cd 2*Li |
| Molecular Weight | 627.81 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Gadoxetate Standards
- Gadoxetate Disodium (CAS 135326-22-6)
- Gadoxetate Impurity 14 (CAS 158599-72-5)
- Gadoxetate Impurity 7 (CAS 158599-73-6)
- Gadoxetate Impurity 5 (CAS 158599-73-6(free base）)
- Gadoxetate impurity 23 (CAS 1618674-24-0)
- Gadoxetate Disodium Impurity 6 (CAS 200267-69-2)
- Gadoxetate Impurity 11 (CAS 221640-06-8)
- Gadoxetate Impurity 1 (CAS CATO-C4X-26181)
Recommended Standards
- Dalbavancin Impurity 14 (CAS CATO-C4X-160214)
- Amisulpride impurity 49 (CAS CATO-C4X-104549)
- Plerixafor Impurity 6 (CAS CATO-C4X-11336)
- Ethyl (4-nitrobenzoyl)glycinate (CAS 7512-77-8)
- 5-Hydroxy-6-methylpicolinic acid (CAS 121447-41-4)
- 5-(Trifluoromethyl)benzo[b]thiophen-2-amine (CAS 793634-52-3)
- 2-((Benzo[d][1,3]dioxol-5-ylmethyl)amino)butan-1-ol (CAS 717830-99-4)
- Methyl 1-propyl-1h-pyrazole-5-carboxylate (CAS 1170869-49-4)
- Tert-butyl 3-(aminomethyl)-2-methylazetidine-1-carboxylate (CAS 1936304-41-4)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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