Cefamandole Impurity 13 CAS CATO-C4X-122113
| CAS No. | CATO-C4X-122113 |
| Molecular Formula | C18H18N6O5S2 |
| Molecular Weight | 462.50 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.
Cefamandole Impurity 13 (CAS CATO-C4X-122113) is a certified pharmaceutical impurity reference standard with the molecular formula C18H18N6O5S2 and a molecular weight of 462.50 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefamandole Impurity 13 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 462.50 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 | C18H18N6O5S2 |
| Molecular Weight | 462.50 g/mol |
| Purity | >90% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefamandole Standards
- Cefamandole (CAS 34444-01-4)
- (7S)-Cefamandole Impurity 18 (CAS 1146611-43-9)
- Cefamandole Impurity 19 (CAS CATO-C4X-122119)
- Cefamandole Impurity 29 (CAS CATO-C4X-122129)
- Cefamandole Adipic Acid Impurity (CAS CATO-C4X-122128)
- Cefamandole Open-Ring Impurity (CAS CATO-C4X-122127)
- Cefamandole Impurity 11 (CAS CATO-C4X-122111)
- (S)-Cefamandole Impurity 26 (CAS CATO-C4X-122126)
Recommended Standards
- N-(Furan-2-ylmethyl)-2-imino-1-(3-morpholinopropyl)-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 510761-74-7)
- Di(naphthalen-2-yl) (4-methyl-1,3-phenylene)dicarbamate (CAS 29455-59-2)
- Cyclo(-Pro-Gly)3 (H-9690.0005) (CAS 37783-51-0)
- Ceftiofur Impurity 13 (CAS CATO-C4X-158113)
- Cefazedone Impurity 8 Formate (CAS CATO-C4X-11718)
- Mexiletine Impurity 2 (CAS 29361-43-1)
- Efavirenz Impurity 24 (CAS CATO-C4X-162724)
- 1-pyridin-2-yl-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 98534-86-2)
- 6-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)pyridin-3-ol (CAS 1261895-25-3)
- Copper(II) glycinate monohydrate (CAS 18253-80-0)
- (5,6,7,8-Tetrahydro-[1,8]naphthyridin-2-yl)-acetic acid (CAS 445490-61-9)
- (7R)-4-Hydroxy-N,N,N-trimethyl-10-oxo-7-[(1-oxododecyl)oxy]-3,5,9-trioxa-4-phosphapentacosan-1-aminium inner salt 4-oxide (CAS 82765-47-7)
- Dimethyl (2S,4R)-piperidine-2,4-dicarboxylate (CAS 98935-65-0)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
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