Cefotiam Impurity 35 CAS CATO-C4X-120435
| CAS No. | CATO-C4X-120435 |
| Molecular Formula | C31H35N13O8S5 |
| Molecular Weight | 878.02 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Cefotiam Impurity 35 (CAS CATO-C4X-120435), a pharmacopoeial impurity reference standard (molecular formula C31H35N13O8S5, MW 878.02 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C31H35N13O8S5, Cefotiam Impurity 35 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 878.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C31H35N13O8S5 |
| Molecular Weight | 878.02 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 13 |
| Sulfur Atoms | 5 |
Related Cefotiam Standards
- Cefotiam Impurity 43 (CAS CATO-C4X-120443)
- Cefotiam Impurity 49 (CAS CATO-C4X-120449)
- Cefotiam Impurity 23 (CAS CATO-C4X-120423)
- Cefotiam Impurity 48 (CAS CATO-C4X-120448)
- Cefotiam Impurity 42 (CAS CATO-C4X-120442)
- Cefotiam Impurity 44 (CAS CATO-C4X-120444)
- Cefotiam Impurity 30 (CAS CATO-C4X-120430)
- Cefotiam Impurity 31 (CAS CATO-C4X-120431)
Recommended Standards
- (2R,3R,4R,5R)-5-(4-(benzoylimino)-5-methyl-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-methoxytetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 166593-57-3)
- Docetaxel Impurity 91 (CAS CATO-C4X-161991)
- Docetaxel Impurity 10 (O-BOC N-pyruvy ldocetaxel) (CAS 1021489-55-3)
- Rifapentine Impurity 4 (CAS CATO-C4X-19594)
- Sildenafil Impurity 84 (CAS CATO-C4X-112884)
- Cisatracurium Besylate EP Impurity N and O Besylate (CAS CATO-C4X-185094)
- Tetrabenazine Impurity 13 (CAS CATO-C4X-274813)
- α-[2-(Dimethylamino-d6)ethyl] Hydrocinnamic Acid (CAS 1346604-83-8)
- 4-(5-Benzoyl-6-methylpyridin-2-yl)piperazine-1-carbaldehyde (CAS 1355175-32-4)
- 2-(2,4-Difluorophenyl)thiazole-4-carboxylic acid (CAS 262589-15-1)
- (S)-Cyclohexylmethyl 2-aminopropanoate hydrochloride (CAS 261909-56-2)
- 3-(Chloromethyl)-5-isopropyl-4-methyl-4h-1,2,4-triazole (CAS 1240529-11-6)
- N-((1H-indol-4-yl)methyl)-1-(furan-2-yl)methanamine (CAS 944897-16-9)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
Why CATO?
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