Ceftriaxone Impurity 25 CAS CATO-C4X-116325
| CAS No. | CATO-C4X-116325 |
| Molecular Formula | C18H18N8O9S3 |
| Molecular Weight | 586.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ceftriaxone Impurity 25 (CAS CATO-C4X-116325), a pharmacopoeial impurity reference standard (molecular formula C18H18N8O9S3, MW 586.58 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ceftriaxone Impurity 25 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 586.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C18H18N8O9S3 |
| Molecular Weight | 586.58 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Ceftriaxone Standards
- Ceftriaxone 3-ene Isomer Disodium Salt (CAS CATO-C4X-11636)
- Ceftriaxone Impurity 20 (CAS CATO-C4X-116320)
- Ceftriaxone Impurity 21 (CAS CATO-C4X-116321)
- Ceftriaxone Impurity 32 (CAS CATO-C4X-116332)
- Ceftriaxone Oxide Impurity (CAS 97466-28-9)
- Ceftriaxone Impurity 27 (CAS CATO-C4X-116327)
- Ceftriaxone EP Impurity A (CAS 92143-31-2)
- Ceftriaxone Impurity 11 (CAS CATO-C4X-116311)
Recommended Standards
- N-((5-((2-(Benzo[d]thiazol-2-ylamino)-2-oxoethyl)thio)-4-(3-(trifluoromethyl)phenyl)-4H-1,2,4-triazol-3-yl)methyl)-2-fluorobenzamide (CAS 391899-60-8)
- Osimertinib impurity 58 (CAS CATO-C4X-204558)
- Letermovir Impurity N19 (CAS 791117-40-3)
- Letermovir Impurity 1 (CAS 917389-29-8)
- Sofosbuvir Impurity 15 (CAS CATO-C4X-105215)
- Roxadustat Impurity 132 (CAS CATO-C4X-2213132)
- Thioctic acid impurity 56 (CAS CATO-C4X-152656)
- N-(2-Phenylpropan-2-yl)acetamide (CAS 79649-68-6)
- (E)-N'-(3-Methoxybenzylidene)-2-(trifluoromethyl)benzenesulfonohydrazide (CAS 2301998-88-7)
- CLA [Chemiluminescence Reagent] (CAS 19953-58-3)
- 3-Ethyl-1,2,3,4-tetrahydroisoquinolin-1-one (CAS 112794-32-8)
- (S)-2-Amino-5-(dimethylamino)pentanoic acid (CAS 121428-46-4)
- Methyl 6,6-dimethylmorpholine-3-carboxylate hydrochloride (CAS 2344680-75-5)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com