Allylestrenol Impurities

Allylestrenol is a progestational steroid that is synthetic.

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Allylestrenol Impurity A Allylestrenol

Allylestrenol Impurity A

VL5860002 3646-28-4
Allylestrenol Impurity B Allylestrenol

Allylestrenol Impurity B

VL5860003 N/A

Allylestrenol Related Compound

It increases the hormonal effects of pre-existing syncytiotrophoblast, which are required for progesterone synthesis. a medicine used to treat recurrent and threatening miscarriage and to prevent preterm labor.


  • Malhotra, Narendra, et al. “Oral Allylestrenol: A Pregnancy-Supporting Progestogen.” Journal of SAFOG with DVD, edited by Jaideep Malhotra, vol. 9, no. 4, 2017, pp. 297–303, Accessed 19 Feb. 2019.
  • PubChem. “Allylestrenol.” @Pubchem, PubChem, 2023, Accessed 2 July 2023.


What is the drug Allylestrenol used for?

Allylestrenol is a steroid that is used to prevent pregnant women from progressing into preterm is a progestational steroid that is synthetic.

What is the therapeutic class of Allylestrenol?

Allylestrenol is an estrogen-derivative progestogen that is utilized in progestogenic hormone formulations.

What is the function of Allylestrenol during pregnancy?

Allylestrenol is a biosynthetic progestogen that has been used in the treatment of mild to severe obstetric problems such as miscarriage/abortion, threatening preterm labor, intrauterine growth restriction (IUGR), and gestational hypertension.