Betamethasone Impurity 18

Name: Betamethasone Impurity 18
Brand: Zemixal
SKU: ZX-028249

Reference StandardAvailable on request

Betamethasone Impurity 18 (CAS 1203841-45-5) supplier Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.

Pack sizes

Betamethasone Impurity 18 chemical structure

CAS number1203841-45-5

FormulaC₂₁H₂₇FO₄

Molar mass362.4 g/mol

Physical formSolid

HS code38229090

InChIKeyVNEWQJPVNZRHHG-GZVNHGJHSA-N

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

About Betamethasone Impurity 18

Betamethasone Impurity 18 belongs to the Betamethasone reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 1203841-45-5, formula C21H27FO4 and molar mass 362.4 g/mol. It is handled as a solid.

Where it is used

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

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Betamethasone

See every impurity, metabolite and related compound we list for this API.

Betamethasone standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Betamethasone Impurity 18
Product name	Betamethasone Impurity 18
Catalogue number	ZX-028249
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
Molar mass	362.4 g/mol
Exact mass	362.1893
Grade	Reference Standard
Physical form	Solid
XLogP3	2.8
H-bond donors / acceptors	2 / 5
Topological polar surface area	74.6 Å²
HS 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
Synonyms	Betamethasone Impurity 50

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Betamethasone Impurity 18
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Betamethasone Impurity 18

Which CAS number identifies Betamethasone Impurity 18?

Betamethasone Impurity 18 is registered under CAS 1203841-45-5. You may also see it listed as Betamethasone Impurity 50. Our catalogue number for this item is ZX-028249.

What are the formula and molar mass of Betamethasone Impurity 18?

For Betamethasone Impurity 18, its formula is C21H27FO4 and its molar mass is 362.4 g/mol. The systematic (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. InChIKey VNEWQJPVNZRHHG-GZVNHGJHSA-N lets you match it in any structure database.

How is Betamethasone Impurity 18 used in pharmaceutical QC?

Betamethasone Impurity 18 is a characterised reference material linked to Betamethasone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Betamethasone Impurity 18?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Betamethasone Impurity 18?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Betamethasone Impurity 18 to my country?

Yes. Betamethasone Impurity 18 ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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