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Key Documents

M8046

Sigma-Aldrich

Mifepristone

≥98%

Synonym(s):

11β-(4-Dimethyl­amino)­phenyl-17β-hydroxy-17-(1-propynyl)­estra-4,9-dien-3-one, RU-38486, RU-486

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About This Item

Empirical Formula (Hill Notation):
C29H35NO2
CAS Number:
Molecular Weight:
429.59
MDL number:
UNSPSC Code:
51111800
PubChem Substance ID:
NACRES:
NA.77

biological source

synthetic (organic)

sterility

non-sterile

Assay

≥98%

form

powder

technique(s)

inhibition assay: suitable

solubility

ethanol: 50 mg/mL, clear, greenish-yellow

originator

Danco Laboratories

shipped in

ambient

storage temp.

2-8°C

SMILES string

[H][C@@]12CCC3=CC(=O)CCC3=C1[C@H](C[C@@]4(C)[C@@]2([H])CC[C@@]4(O)C#CC)c5ccc(cc5)N(C)C

InChI

1S/C29H35NO2/c1-5-15-29(32)16-14-26-24-12-8-20-17-22(31)11-13-23(20)27(24)25(18-28(26,29)2)19-6-9-21(10-7-19)30(3)4/h6-7,9-10,17,24-26,32H,8,11-14,16,18H2,1-4H3/t24-,25+,26-,28-,29-/m0/s1

InChI key

VKHAHZOOUSRJNA-GCNJZUOMSA-N

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General description

Mifepristone, a synthetic steroid, can be utilized for the management of Cushing′s syndrome and uterine leiomyomas. At low doses, it selectively antagonizes progesterone by binding to the intracellular progesterone receptor. At higher doses, mifepristone blocks cortisol at the glucocorticoid receptor, affecting the hypothalamic-pituitary-adrenal axis and leading to increased circulating cortisol, thereby controlling hyperglycemia in some patients. Additionally, mifepristone has a higher affinity for the glucocorticoid II receptor than for the glucocorticoid I receptor. In cases of pregnancy termination, mifepristone disrupts progesterone.

Application

Mifepristone has been used:
  • to induce damage against the proliferative and secretory phase of endometrial stromal cells
  • to establish a preterm birth (PTB) mice model in order to study the difference in cervical ripening mechanism between term and PTBs
  • to activate geneswitch gal4 in flies
  • to study the effects of sex steroids on prostaglandin secretion

Biochem/physiol Actions

Therefore, mifepristone is considered to be a potent abortifacient. It is also known to inhibit human chorionic gonadotropin. Mifepristone results in decidual necrosis.
Mifepristone (RU-486) has activity as both a progesterone receptor antagonist and a glucocorticoid receptor antagonist.

Features and Benefits

This compound is featured on the Nuclear Receptors (Steroids) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound was developed by Danco Laboratories. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ovarian steroids regulate prostaglandin secretion in the feline endometrium
Siemieniuch MJ, et al.
Animal Reproduction Science, 120(1-4), 142-150 (2010)
Mifepristone
Autry BM and Wadhwa R
StatPearls [Internet] (2020)
Nynne Sharma et al.
Nucleic acids research, 36(11), e67-e67 (2008-05-24)
Nonviral integration systems are widely used genetic tools in transgenesis and play increasingly important roles in strategies for therapeutic gene transfer. Methods to efficiently regulate the activity of transposases and site-specific recombinases have important implications for their spatiotemporal regulation in
Pfenninger and Fowler's Procedures for Primary Care, 874-874 (2010)
The molecular mechanisms of cervical ripening differ between term and preterm birth
Holt R, et al.
Endocrinology, 152(3), 1036-1046 (2011)

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