Fondaparinux sodium impurity 1 CAS 348625-84-3
| CAS No. | 348625-84-3 |
| Molecular Formula | C13H17NNa4O19S3 |
| Molecular Weight | 679.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Fondaparinux sodium impurity 1 (C13H17NNa4O19S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 679.42 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Fondaparinux sodium impurity 1 (CAS 348625-84-3), a pharmacopoeial impurity reference standard (molecular formula C13H17NNa4O19S3, MW 679.42 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H17NNa4O19S3 |
| Molecular Weight | 679.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 3 |
Related Fondaparinux Standards
- Fondaparinux Sodium Impurity 14 (CAS CATO-C4X-205214)
- Fondaparinux Sodium Impurity 15 (CAS CATO-C4X-205215)
- Fondaparinux Sodium Impurity 9 (CAS CATO-C4X-20529)
- Fondaparinux Sodium (CAS 114870-03-0)
- Fondaparinux sodium impurity 2 (CAS CATO-C4X-20522)
- Fondaparinux - API Standards (CAS 104993-28-4)
- Fondaparinux Sodium Impurity 7 (CAS CATO-C4X-20527)
- Fondaparinux sodium Impurity N1 (CAS 114903-05-8)
Recommended Standards
- Nicotinamide guanine dinucleotide sodium salt (CAS 5624-35-1)
- Tri-t-butylphosphine[bis(trifluoromethyl)sulfonylimido]gold(I) (CAS 1121960-93-7)
- Clindamycin Impurity 155 (CAS CATO-C4X-1341155)
- Itraconazole Impurity 59 (CAS CATO-C4X-149759)
- Apremilast Impurity 1 (CAS 608141-44-2)
- Revefenacin impurity 83 (CAS 102-18-1)
- Landiolol Impurity 86 (CAS CATO-C4X-262186)
- 2-((3,4-Dimethoxyphenyl)amino)-1-(1h-indol-3-yl)-2-phenylethan-1-one (CAS 924712-67-4)
- 1-(tert-Butoxycarbonyl)-4-phenoxy-4-piperidinecarboxylic acid (CAS 1193388-97-4)
- (R)-Benzhydryl 3-methyl-2-((1R,5S)-7-oxo-3-phenyl-4-oxa-2,6-diazabicyclo[3.2.0]hept-2-en-6-yl)but-3-enoate (CAS 67977-61-1)
- 3-Bromo-6-fluoro-2-methyl-5-nitropyridine (CAS 1263282-57-0)
- N1,N1-Bis(2-fluorophenyl)oxalamide (CAS 91325-44-9)
- ethyl 4,6-difluoropyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1427501-67-4)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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