ent-Entecavir

Name: ent-Entecavir
Brand: Vaqora Chemicals
SKU: VQ-013399

About ent-Entecavir

ent-Entecavir (CAS 188399-46-4) is a process intermediate or related compound of Entecavir offered by Vaqora Chemicals. The compound has the formula C12H15N5O3, corresponding to a molecular weight of 277.28 g/mol. Its systematic (IUPAC) name is 2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one. Common synonyms include Entecavir Enantiomer and (1R,3S,4R)-Entecavir.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Process chemists and analysts use it when developing synthetic routes to Entecavir, tracking process-related impurities and validating analytical methods. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 5 mg packs, ent-Entecavir is dispatched with a Certificate of Analysis (COA) to destinations worldwide. Stock is available for quick dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Entecavir

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

Entecavir impurities

Specifications & identifiers

Chemical identifiers
Product name	ent-Entecavir
Catalogue No.	VQ-013399
CAS Number	188399-46-4
IUPAC name	2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one
Molecular formula	C₁₂H₁₅N₅O₃
Molecular weight	277.28 g/mol
Exact mass	277.1175
Grade	Reference Standard
HSN code	2933
InChIKey	QDGZDCVAUDNJFG-BWZBUEFSSA-N
SMILES	C=C1[C@@H](C[C@H]([C@@H]1CO)O)N2C=NC3=C2N=C(NC3=O)N
PubChem CID	135742598

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.3
H-bond donors / acceptors	4 / 5
TPSA	126 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 ent-Entecavir?

The CAS Registry Number of ent-Entecavir is 188399-46-4. It is also known as Entecavir Enantiomer, (1R,3S,4R)-Entecavir, (1R,3S,4R)-ent-Entecavir.

What is the molecular formula and molecular weight of ent-Entecavir?

ent-Entecavir has the molecular formula C12H15N5O3 and a molecular weight of 277.28 g/mol. Its IUPAC name is 2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one.

What is ent-Entecavir used for?

ent-Entecavir is supplied as a characterised reference material related to Entecavir. 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 ent-Entecavir can I order?

We supply ent-Entecavir in Reference Standard grade, in 5 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with ent-Entecavir?

Yes. Every lot of ent-Entecavir 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 ent-Entecavir be shipped internationally?

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