Spiramycin Impurity 1 (Neospiramycin) CAS 102418-06-4
| CAS No. | 102418-06-4 |
| Molecular Formula | C36H62N2O11 |
| Molecular Weight | 698.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Spiramycin Impurity 1 (Neospiramycin) is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Spiramycin Impurity 1 (Neospiramycin) (CAS 102418-06-4), molecular formula C36H62N2O11 and molecular weight 698.88 g/mol, is a CATO reference standard with documented purity and traceability.
Spiramycin Impurity 1 (Neospiramycin) (C36H62N2O11) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C36H62N2O11 |
| Molecular Weight | 698.88 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Spiramycin Standards
- Neo Spiramycin I (CAS 70253-62-2)
- Spiramycin EP Impurity A (CAS CATO-C4X-23251)
- Spiramycin EP Impurity H (CAS CATO-C1896290)
- Spiramycin EP Impurity H (CAS CATO-C4X-23257)
- Spiramycin EP Impurity E (CAS 177584-14-4)
- Spiramycin EP Impurity E (CAS CATO-C4X-23255)
- Spiramycin (CAS 8025-81-8)
- Spiramycin I (CAS 24916-50-5)
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Why CATO?
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