Erythromycin Methyloxime（E） CAS CATO-C4X-100132
| CAS No. | CATO-C4X-100132 |
| Molecular Formula | C38H70N2O13 |
| Molecular Weight | 762.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Erythromycin Methyloxime（E） (CAS CATO-C4X-100132), molecular formula C38H70N2O13 and molecular weight 762.97 g/mol, is a CATO reference standard with documented purity and traceability.
Erythromycin Methyloxime（E） (C38H70N2O13) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C38H70N2O13 |
| Molecular Weight | 762.97 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Erythromycin Standards
- Erythromycin Impurity 12 (CAS CATO-C4X-100112)
- Erythromycin A 9-Methoxime (CAS 53066-26-5)
- Erythromycin E Oxime (CAS CATO-C4X-100135)
- Erythromycin Impurity 45 (CAS 1094780-33-2)
- Erythromycin F Oxime (CAS CATO-C4X-100136)
- Erythromycin Thiosulfinate Impurity A Oxime Derivative (CAS CATO-C4X-100165)
- Erythromycin Impurity 10(Davercin) (CAS 55224-05-0)
- Erythromycin C Dicarbonate (CAS CATO-C4X-100159)
Recommended Standards
- Clarithromycin EP Impurity C (CAS 127253-06-9)
- (S)-4-((1,4,7,10-Tetrakis(2-(tert-butoxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-2-yl)methyl)benzoic acid (CAS 1713269-98-7)
- Clarithromycin EP Impurity L (CAS 127253-05-8)
- Clarithromycin 9-Oxime (CAS 103450-87-9)
- 1-(4-Benzylpiperazin-1-yl)-2-{4-[4-(thiophen-2-yl)pyrimidin-2-yl]phenoxy}ethan-1-one (CAS 477888-34-9)
- (2-Benzothiazolylthio)Fluoro-Acetonitrile (CAS 201747-53-7)
- N-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)-2-methylbenzamide (CAS 1421530-10-0)
- N-[2-(4-Chloro-3,5-dimethylphenoxy)ethyl]-2,4,6-trimethylaniline (CAS 1040688-27-4)
- tert-butyl 3-((2,4-dichloropyrimidin-5-yl)methoxy)piperidine-1-carboxylate (CAS 1420880-00-7)
- 3,8-Phenanthroline (CAS 229-70-9)
- 2-(Chloromethyl)-5-cyano-6-(difluoromethyl)pyridine-3-acetic acid (CAS 1806960-59-7)
- 3-Methyl-N-(pyridin-3-ylmethyl)pentan-2-amine (CAS 1038278-56-6)
- 1-(3-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)-1H-imidazole (CAS 2246882-18-6)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com