Mifepristone

About Mifepristone

Mifepristone is a metabolic / hormonal API in IP/BP/USP grade carrying the CAS registry number 84371-65-3, specified at 99% purity. The compound has the formula C29H35NO2, corresponding to a molecular weight of 429.6 g/mol. Alternative names: Mifegyne and RU-486.

It is supplied as a white crystalline powder (Results: complies). Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

This API belongs to our antidiabetic, hormone and metabolic APIs portfolio and is supplied to IP/BP/USP specifications for formulators, contract manufacturers and generic drug developers. Typical end-use sectors are pharmaceutical manufacturing.

Standard pack sizes are 1 kg, 5 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmaceutical formulation
Generic drug development

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Mifepristone
Catalogue No.	VQ-004137
CAS Number	84371-65-3
IUPAC name	(8S,11R,13S,14S,17S)-11-[4-(dimethylamino)phenyl]-17-hydroxy-13-methyl-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
Molecular formula	C₂₉H₃₅NO₂
Molecular weight	429.6 g/mol
Exact mass	429.2668
Grade	IP/BP/USP
Purity / assay	99%
HSN code	2933
InChIKey	VKHAHZOOUSRJNA-GCNJZUOMSA-N
SMILES	CC#C[C@@]1(CC[C@@H]2[C@@]1(C[C@@H](C3=C4CCC(=O)C=C4CC[C@@H]23)C5=CC=C(C=C5)N(C)C)C)O
PubChem CID	55245

Physical properties
Physical form	Powder
Appearance	White crystalline powder (Results: complies)
LogP (XLogP3)	3.8
H-bond donors / acceptors	1 / 3
TPSA	40.5 Å²
Synonyms	Mifegyne, RU-486, RU 486, 11-((4-dimethylamino) phenyl)-17-Hydroxy-17-(1-propynyl) Estra-4,9-dien-3-one, Mifepristone (Standard), VGX-410C, VGX-410, RU486 (tetramethyl-rhodamine conjugated), RU 486-6, 1nhz, 11beta-(p-(Dimethylamino)phenyl)-17beta-hydroxy-17-(1-propynyl)estra-4,9-dien-3-one, Mifeprex (TN)

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H360May damage fertility or the unborn child
H362May cause harm to breast-fed children

Precautionary statements: P203, P260, P261, P263, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P318, P321, P330, P362 + P364, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Mifepristone?

The CAS Registry Number of Mifepristone is 84371-65-3. It is also known as Mifegyne, RU-486, RU 486.

What is the molecular formula and molecular weight of Mifepristone?

Mifepristone has the molecular formula C29H35NO2 and a molecular weight of 429.6 g/mol. Its IUPAC name is (8S,11R,13S,14S,17S)-11-[4-(dimethylamino)phenyl]-17-hydroxy-13-methyl-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one.

Which grade and pack sizes of Mifepristone can I order?

We supply Mifepristone in IP/BP/USP (99%) grade, in 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Mifepristone?

Yes. Every lot of Mifepristone is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Mifepristone be shipped internationally?

Yes. Mifepristone is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.