Betamethasone Impurity 18

Name: Betamethasone Impurity 18
Brand: Vaqora Chemicals
SKU: VQ-029416

About Betamethasone Impurity 18

Vaqora Chemicals supplies Betamethasone Impurity 18, an impurity of Betamethasone registered under CAS number 1203841-45-5. With the molecular formula C21H27FO4, it has a molar mass of 362.4 g/mol. Alternative names: Betamethasone Impurity 50.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Betamethasone impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in 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

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Betamethasone

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

Betamethasone impurities

Specifications & identifiers

Chemical identifiers
Product name	Betamethasone Impurity 18
Catalogue No.	VQ-029416
CAS Number	1203841-45-5
IUPAC name	(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-7,8,11,12,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthrene-17-carboxylic acid
Molecular formula	C₂₁H₂₇FO₄
Molecular weight	362.4 g/mol
Exact mass	362.1893
Grade	Reference Standard
HSN code	38229090
InChIKey	VNEWQJPVNZRHHG-GZVNHGJHSA-N
SMILES	C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@@]4([C@]3([C@H](C[C@@]2([C@@H]1C(=O)O)C)O)F)C
PubChem CID	175674124

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	2 / 5
TPSA	74.6 Å²

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 Betamethasone Impurity 18?

The CAS Registry Number of Betamethasone Impurity 18 is 1203841-45-5. It is also known as Betamethasone Impurity 50.

What is the molecular formula and molecular weight of Betamethasone Impurity 18?

Betamethasone Impurity 18 has the molecular formula C21H27FO4 and a molecular weight of 362.4 g/mol. Its IUPAC name is (8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-7,8,11,12,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthrene-17-carboxylic acid.

What is Betamethasone Impurity 18 used for?

Betamethasone Impurity 18 is supplied as a characterised reference material related to Betamethasone. 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 Betamethasone Impurity 18 can I order?

We supply Betamethasone Impurity 18 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 Betamethasone Impurity 18?

Yes. Every lot of Betamethasone Impurity 18 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 Betamethasone Impurity 18 be shipped internationally?

Yes. We export Betamethasone Impurity 18 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.