N-Desmethyl Ulipristal Acetate

Name: N-Desmethyl Ulipristal Acetate
Brand: Vaqora Chemicals
SKU: VQ-028576

About N-Desmethyl Ulipristal Acetate

Vaqora Chemicals supplies N-Desmethyl Ulipristal Acetate, a metabolite or degradation product of Ulipristal registered under CAS number 159681-66-0. Formula C29H35NO4, molecular weight 461.6 g/mol. Alternative names: CDB 3877.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Analytical teams use this compound to identify metabolites and degradants of Ulipristal, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Ulipristal

View every impurity, metabolite and intermediate we list for Ulipristal.

Ulipristal impurities

Specifications & identifiers

Chemical identifiers
Product name	N-Desmethyl Ulipristal Acetate
Catalogue No.	VQ-028576
CAS Number	159681-66-0
IUPAC name	[(8S,11R,13S,14S,17R)-17-acetyl-13-methyl-11-[4-(methylamino)phenyl]-3-oxo-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl] acetate
Molecular formula	C₂₉H₃₅NO₄
Molecular weight	461.6 g/mol
Exact mass	461.2566
Grade	Reference Standard
HSN code	38229090
InChIKey	AQCANMLYXHZIRW-GCNJZUOMSA-N
SMILES	CC(=O)[C@]1(CC[C@@H]2[C@@]1(C[C@@H](C3=C4CCC(=O)C=C4CC[C@@H]23)C5=CC=C(C=C5)NC)C)OC(=O)C
PubChem CID	15908064

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	1 / 5
TPSA	72.5 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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 N-Desmethyl Ulipristal Acetate?

The CAS Registry Number of N-Desmethyl Ulipristal Acetate is 159681-66-0. It is also known as CDB 3877.

What is the molecular formula and molecular weight of N-Desmethyl Ulipristal Acetate?

N-Desmethyl Ulipristal Acetate has the molecular formula C29H35NO4 and a molecular weight of 461.6 g/mol. Its IUPAC name is [(8S,11R,13S,14S,17R)-17-acetyl-13-methyl-11-[4-(methylamino)phenyl]-3-oxo-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl] acetate.

What is N-Desmethyl Ulipristal Acetate used for?

N-Desmethyl Ulipristal Acetate is supplied as a characterised reference material related to Ulipristal. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of N-Desmethyl Ulipristal Acetate can I order?

We supply N-Desmethyl Ulipristal Acetate in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with N-Desmethyl Ulipristal Acetate?

Yes. Every lot of N-Desmethyl Ulipristal Acetate 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 N-Desmethyl Ulipristal Acetate be shipped internationally?

Yes. N-Desmethyl Ulipristal Acetate 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.