CAS No. 18323-44-9

Batch: Purity:98.55
Clindamycin Chemical Structure
Chemical Structure
Check the Clindamycin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2S,4R)-N-[(1S,2S)-2-chloro-1-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-methylsulfanyloxan-2-yl]propyl]-1-methyl-4-propylpyrrolidine-2-carboxamide
CAS Number 18323-44-9
Molecular Formula

C18H33ClN2O5S

Molecular Weight (MW) 424.98
SMILES CCCC1CC(N(C1)C)C(=O)NC(C2C(C(C(C(O2)SC)O)O)O)C(C)Cl
InChIKey KDLRVYVGXIQJDK-AWPVFWJPSA-N

Ordering Information

Biological Activity

Clindamycin is a lincosamide antibiotic that targets the 50S ribosomal subunit in bacteria. By binding specifically to the 23S rRNA within the 50S subunit, it interferes with peptide bond formation and inhibits bacterial protein synthesis. This block in translation suppresses bacterial growth and proliferation, rendering it an effective agent against susceptible Gram-positive and anaerobic bacteria. [1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 85 mg/mL (200.0 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 85 mg/mL
Water Insoluble
FAQ
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).

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Note: Technical data last updated: Sep 1, 2026.