Testolactone (brand name Teslac) is an antineoplastic agent that is a derivative of progesterone and is used to treat advanced stage breast cancer.

CAS：968-93-4
中文别名：睾内酪;
英文别名：teslak;Testolactone;testolacton;testololactone;fludestrin;17a-oxa-D-homo-1,4-androstadien-3,17-dione;teolit;teslac;sq9538;
分子式：C19H24O3
分子量：300.392
精确质量：300.173
Psa：43.37
Logp：3.5899

UNII：6J9BLA949Q

密度：1.17g/cm3
沸点：482ºC at 760mmHg
熔点：218-219ºC
闪点：213.4ºC
折射率：1.567