Erythromycin estolate Impurity G CAS 147702-49-6
| CAS No. | 147702-49-6 |
| Molecular Formula | C39H69NO14 |
| Molecular Weight | 775.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Erythromycin estolate Impurity G (CAS 147702-49-6), molecular formula C39H69NO14 and molecular weight 775.96 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Erythromycin estolate Impurity G is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 775.96 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).
CATO manufactures Erythromycin estolate Impurity G under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C39H69NO14 |
| Molecular Weight | 775.96 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 |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
Related Erythromycin Standards
- Erythromycin C Dicarbonate (CAS CATO-C4X-100159)
- Erythromycin F Oxime (CAS CATO-C4X-100136)
- Erythromycin Thiosulfinate Impurity A Oxime Derivative (CAS CATO-C4X-100165)
- Erythromycin Impurity 12 (CAS CATO-C4X-100112)
- Erythromycin Methyloxime（E） (CAS CATO-C4X-100132)
- Erythromycin A 9-Methoxime (CAS 53066-26-5)
- Erythromycin E Oxime (CAS CATO-C4X-100135)
- Erythromycin Impurity 45 (CAS 1094780-33-2)
Recommended Standards
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- 2,4,5,6-Tetrakis(3,6-diphenyl-9H-carbazol-9-yl)isophthalonitrile (CAS 1469705-37-0)
- Lubiprostone Impurity 29 (CAS CATO-C4X-113629)
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- 3-Bromobenzo[b]thiophene-2-sulfonyl fluoride (CAS 2193061-71-9)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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