Is EINECS 206-237-8 Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use EINECS 206-237-8? Is EINECS 206-237-8 safe for nursing mother and child? Does EINECS 206-237-8 extracts into breast milk? Does EINECS 206-237-8 has any long term or short term side effects on infants? Can EINECS 206-237-8 influence milk supply or can EINECS 206-237-8 decrease milk supply in lactating mothers?

EINECS 206-237-8 has not been studied during breastfeeding. However, the similar drug, estradiol valerate, has been used to suppress lactation, usually in combination with testosterone. Generally, EINECS 206-237-8 should be avoided in mothers wishing to breastfeed.

Another injection ester form of estradiol, estradiol valerate was previously used therapeutically to suppress lactation, usually in combination with testosterone.[3][4][5]A retrospective cohort study compared 371 women who received high-dose estrogen (either 3 mg of diethylstilbestrol or 150 mcg of ethinyl estradiol daily) during adolescence for adult height reduction to 409 women who did not receive estrogen. No difference in breastfeeding duration was found between the two groups, indicating that high-dose estrogen during adolescence has no effect on later breastfeeding.[6]