Gadoxetate Impurity 11 CAS 221640-06-8
| CAS No. | 221640-06-8 |
| Molecular Formula | C13H23N3O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Gadoxetate Impurity 11 (C13H23N3OHCl) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Gadoxetate Impurity 11 (CAS 221640-06-8), a pharmacopoeial impurity reference standard (molecular formula C13H23N3OHCl, MW 273.81 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Gadoxetate Impurity 11 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 | C13H23N3O 3*HCl |
| Molecular Weight | 273.81 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| 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 1 (CAS CATO-C4X-26181)
- Gadoxetate Impurity 10 (CAS CATO-C4X-261810)
Recommended Standards
- Pitavastatin Impurity 34 (CAS CATO-C4X-103734)
- Cefazolin Impurity 78 (CAS CATO-C4X-157778)
- Chlortetracycline EP Impurity G (CAS 769895-23-0)
- Lemborexant Impurity 19 (CAS CATO-C4X-304220)
- 2-Amino-3-iodobenzonitrile (CAS 114344-67-1)
- 4-(2-(2-Chloro-4-nitrophenoxy)ethoxy)benzene-1-sulfonyl fluoride (CAS 21278-61-5)
- 4-nitro-3-(trifluoromethyl)-7-azaindole-7-oxide (CAS 892414-49-2)
- 2-Chloro-5-(trifluoromethyl)pyridine (CAS 52334-81-3)
- 1-(3-Bromo-5-methylthiophen-2-yl)ethan-1-amine (CAS 1532059-90-7)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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