Tiamulin EP Impurity E CAS 113323-39-0
| CAS No. | 113323-39-0 |
| Molecular Formula | C28H45NO4S |
| Molecular Weight | 491.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 491.73 g/mol gives Tiamulin EP Impurity E distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Tiamulin EP Impurity E (CAS 113323-39-0, C28H45NO4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Tiamulin EP Impurity E is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 491.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Tiamulin EP Impurity E 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 | C28H45NO4S |
| Molecular Weight | 491.73 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Tiamulin Standards
- Tiamulin EP impurity D (CAS CATO-C4X-221016)
- Tiamulin EP impurity Q (CAS CATO-C4X-221017)
- Tiamulin impurity 23 (CAS CATO-C4X-221023)
- Tiamulin (CAS 55297-95-5)
- Tiamulin impurity 13 (CAS 1061337-55-0)
- Tiamulin - Impurity P (CAS 848129-54-4)
- Tiamulin EP Impurity L (CAS 31716-01-5)
- Tiamulin EP Impurity S (CAS CATO-C4X-22104)
Recommended Standards
- Orlistat Impurity 34 (CAS 96829-59-3)
- 2-(Dioctylamino)ethyl nonyl hydrogen phosphate (CAS 2760467-57-8)
- Cholic Acid Impurity 54 (CAS 70779-05-4)
- Cyantraniliprole Impurity IN-RYA13 (CAS 2957882-50-5)
- Arotinolol Impurity 34 (CAS CATO-C4X-185434)
- Opicapone impurity 25 (CAS CATO-C4X-240425)
- Naftidrofuryl EP Impurity C (CAS 115025-98-4)
- benzyl 3-fluoro-4,4-dihydroxypiperidine-1-carboxylate (CAS 2102412-10-0)
- 4-[(chloroacetyl)amino]-3-nitrobenzoic acid (CAS 949873-89-6)
- 3-((4-Methoxybenzyl)thio)-5H-[1,2,4]triazino[5,6-b]indole (CAS 321973-60-8)
- N-(3-Chloro-4-methylphenyl)-N-[2-(4-methylphenoxy)propyl]amine (CAS 1040681-43-3)
- 3-Chloro-6-methyl-1-benzothiophene-2-carbonyl chloride (CAS 34576-87-9)
- 2-(3-(Phenoxymethyl)phenyl)benzo[d]thiazole (CAS 400087-91-4)
- Anti-Inflammatory Peptide 2 (CAS 118850-72-9)
Why CATO?
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