CAS No. 8025-81-8
Batch:
Purity:97
Chemical Structure
Check the
Spiramycin
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 8025-81-8 | |
|---|---|---|
| Molecular Formula |
C43H74N2O14 |
|
| Molecular Weight (MW) | 843.05 | |
| SMILES | CC1CC=CC=CC(C(CC(C(C(C(CC(=O)O1)O)OC)OC2C(C(C(C(O2)C)OC3CC(C(C(O3)C)O)(C)O)N(C)C)O)CC=O)C)OC4CCC(C(O4)C)N(C)C |
Spiramycin is a 16-membered ring macrolide antibiotic that targets the 50S subunit of the bacterial ribosome. By binding to 23S ribosomal RNA within the peptidyl transferase region, spiramycin inhibits bacterial protein synthesis and blocks nascent peptide chain elongation. This disruption halts bacterial growth and exhibits potent antibacterial activity against susceptible Gram-positive bacteria and specific pathogens.
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
100 mg/mL
(118.61 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 100 mg/mL |
| Water | Insoluble |
| DMSO |
157 mg/mL
(186.22 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 157 mg/mL |
| Water | Insoluble |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Pre-aliquoted for Longevity: Solid-state aliquots offer significantly longer shelf life compared to stock solutions, ensuring maximum stability for every use.
Looking for a specific aliquot size? Reach out to your local sales representative or contact us at orders@selleckchem.com.
Note: Technical data last updated: Sep 1, 2026.