Tiamulin EP impurity D CAS CATO-C4X-221016
| CAS No. | CATO-C4X-221016 |
| Molecular Formula | C28H47NO4S |
| Molecular Weight | 493.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Tiamulin EP impurity D (CAS CATO-C4X-221016, C28H47NO4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Tiamulin EP impurity D (C28H47NO4S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
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 | C28H47NO4S |
| Molecular Weight | 493.74 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Tiamulin Standards
- Tiamulin EP impurity Q (CAS CATO-C4X-221017)
- Tiamulin impurity 23 (CAS CATO-C4X-221023)
- Tiamulin (CAS 55297-95-5)
- Tiamulin EP Impurity E (CAS 113323-39-0)
- 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
- Palladium, dichlorobis[1-(phenylmethyl)-1H-imidazole-ÎșN3]-, (SP-4-1)- (CAS 944538-72-1)
- Olean-12-eno[3,2-c]isoxazol-28-oic acid methyl ester, 97% (CAS 42273-05-2)
- Val-Cit-PAB-OSBT (CAS 2210262-26-1)
- (2E)-1-[5-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methyl)-4,5-dihydro-1,2-oxazol-3-yl]-3-[(2,4-dichlorophenyl)amino]prop-2-en-1-one (CAS 344277-02-7)
- Relugolix Impurity 191 (CAS CATO-C4X-2429191)
- Parecoxib sodium Impurity 9 (CAS 1373038-56-2)
- Tofacitinib Impurity 6 (CAS 477600-74-1)
- 4-(1H-Imidazol-1-yl)-5-iodopyrimidine (CAS 1428881-71-3)
- Methyl 2-(2-amino-6-oxo-1,6-dihydropyrimidin-5-yl)acetate (CAS 163081-06-9)
- (R)-1-(5-(tert-Butyl)-2,3-dihydro-1H-inden-1-yl)-3-(1H-indazol-4-yl)urea (CAS 808756-71-0)
- 6-(3,4-Difluorophenyl)pyrimidine-2,4(1H,3H)-dione (CAS 1368410-95-0)
- 1-(1-methyl-1H-pyrrole-2-carbonyl)piperazine hydrochloride (CAS 1244968-57-7)
- 1-Methyl-1,2,3,4-tetrahydroquinoline-2-carboxylic acid (CAS 1706544-92-4)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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