Gadodiamide EP Impurity B Disodium Salt CAS 92923-64-3
| CAS No. | 92923-64-3 |
| Molecular Formula | C14H18N3O10 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Gadodiamide EP Impurity B Disodium Salt (CAS 92923-64-3), a pharmacopoeial impurity reference standard (molecular formula C14H18N3O10GdNa, MW 568.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Gadodiamide EP Impurity B Disodium Salt (C14H18N3O10GdNa) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
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), Gadodiamide EP Impurity B Disodium Salt 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 | C14H18N3O10 Gd 2*Na |
| Molecular Weight | 568.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 3 |
Related Gadodiamide Standards
- Gadodiamide Hydrate (CAS 122795-43-1)
- Gadodiamide (CAS 131410-48-5)
- Gadodiamide Impurity 1 (CAS 137076-43-8)
- Gadodiamide Impurity 10 (CAS CATO-C4X-314310)
- Gadodiamide Impurity 11 (CAS CATO-C4X-314311)
- Gadodiamide Impurity 2 (CAS CATO-C4X-31432)
- Gadodiamide Impurity 3 (CAS CATO-C4X-31433)
- Gadodiamide Impurity 4 (CAS CATO-C4X-31434)
Recommended Standards
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- 5-(2-Bromoethyl)benzo[d][1,3]dioxole (CAS 57587-02-7)
- 6-Bromoquinolin-3-amine (CAS 930570-31-3)
- (2S,4S)-N-Cbz-4-fluoropyrrolidine-2-carbonitrile (CAS 518047-78-4)
- Neodymium(III) sulfate hydrate (CAS 101509-27-7)
- 5-chloro-1-propyl-1H-1,3-benzodiazole-2-carbaldehyde (CAS 1253395-07-1)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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