CAS No. 55-98-1

Batch: Purity:99.81
Busulfan Chemical Structure
Chemical Structure
Check the Busulfan product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-methylsulfonyloxybutyl methanesulfonate
CAS Number 55-98-1
Molecular Formula

C6H14O6S2

Molecular Weight (MW) 246.3
SMILES CS(=O)(=O)OCCCCOS(=O)(=O)C
InChIKey COVZYZSDYWQREU-UHFFFAOYSA-N

Ordering Information

Biological Activity

Busulfan is a cell cycle non-specific alkylating antineoplastic agent that targets DNA and inhibits thioredoxin reductase activity. By inducing DNA-DNA and DNA-protein cross-linking, it triggers DNA damage responses and promotes apoptotic cell death. Consequently, busulfan exerts potent myeloablative and immunosuppressive effects, making it effective for bone marrow transplantation conditioning and for establishing experimental animal models of anemia.

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 49 mg/mL (198.94 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol 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.