Erythromycin Compound M3 CAS 119665-62-2
| CAS No. | 119665-62-2 |
| Molecular Formula | C49H96N2O14Si2 |
| Molecular Weight | 993.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Erythromycin Compound M3 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.
CATO supplies Erythromycin Compound M3 (CAS 119665-62-2), a pharmacopoeial impurity reference standard (molecular formula C49H96N2O14Si2, MW 993.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Erythromycin Compound M3 (C49H96N2O14Si2) contains an amide group, a carboxylic acid 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C49H96N2O14Si2 |
| Molecular Weight | 993.48 g/mol |
| Purity | >85% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Erythromycin Standards
- Erythromycin Impurity N8 (CAS 119665-78-0)
- Erythromycin impurity 63 (CAS CATO-C4X-100163)
- Erythromycin Ethylsuccinate-13C-d3 (CAS 1264-62-6 (non-labelled))
- Erythromycin Ethylsuccinate (CAS 41342-53-4)
- Erythromycin Ethyl Succinate (CAS 1264-62-6)
- Erythromycin ethylsuccinate Impurity 52 (CAS CATO-C4X-100152)
- Erythromycin Propionate (CAS 134-36-1)
- Erythromycin estolate Impurity G (CAS 147702-49-6)
Recommended Standards
- 3,4,5-Tris((4-(dodecyloxy)benzyl)oxy)benzoic acid (CAS 110934-58-2)
- Ceftolozane Impurity 43 (CAS CATO-C4X-240643)
- (R)-TCYP (CAS 1359764-39-8)
- Chloride ionophore II (CAS 145889-57-2)
- Baloxavir Marboxil Impurity 191 (CAS 1820002-36-5)
- Celecoxib Impurity 11 (CAS 219986-64-8)
- Betamethasone impurity 60 (CAS CATO-C4X-143760)
- Olprinone Impurity 8 (CAS CATO-C4X-20438)
- 4-((Bicyclo[2.2.1]hept-5-en-2-ylmethyl)amino)butan-2-ol (CAS 1341450-43-8)
- Fluralaner Impurity 53 (CAS CATO-C4X-218053)
- Methyl 5-chloro-6-(cyclopropylmethoxy)-2-methylnicotinate (CAS 1708079-94-0)
- (Z)-2-(Pyridin-2-yl)ethenol (CAS 922179-86-0)
- 4-Chloro-2-(4-methylpiperazin-1-yl)thiazole-5-carbaldehyde (CAS 141764-88-7)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
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