Atrimustine is a conjugate of chlorambucil and β-estradiol benzoate with the antitumor activity.

Atrimustine (Bestrabucil), a conjugate of chlorambucil and β-estradiol benzoate, has high affinity for tumor cells and enhances the antitumor activity of chlorambucil.The effect of Atrimustine (Bestrabucil), a benzoate of an estradiol-chlorambucil conjugate, is examined on the production of growth factor(s) by Shionogi carcinoma 115 (SC-115) cells, an androgen-responsive cultured cancer cell line. At Atrimustine concentrations of 100 nM-10 μM, concentration-dependent inhibition of growth factor production by SC-115 cells can be demonstrated by ³H-thymidine uptake assay.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

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