Entecavir

Name: Entecavir
Brand: Vaqora Chemicals
SKU: VQ-030490

About Entecavir

Vaqora Chemicals supplies Entecavir, a high-purity reference standard of Entecavir registered under CAS number 142217-69-4. Formula C12H15N5O3, molecular weight 277.28 g/mol. Its systematic (IUPAC) name is 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one. It is also known as Entecavir System Suitability Mixture or anhydrous entecavir.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

Laboratories use this Entecavir standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Entecavir in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Entecavir

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

Entecavir impurities

Specifications & identifiers

Chemical identifiers
Product name	Entecavir
Catalogue No.	VQ-030490
CAS Number	142217-69-4
IUPAC name	2-amino-9-[(1S,3R,4S)-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	38229090
InChIKey	QDGZDCVAUDNJFG-FXQIFTODSA-N
SMILES	C=C1[C@H](C[C@@H]([C@H]1CO)O)N2C=NC3=C2N=C(NC3=O)N
PubChem CID	135398508

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.3
H-bond donors / acceptors	4 / 5
TPSA	126 Å²
Synonyms	Entecavir System Suitability Mixture, anhydrous entecavir, Entecavir anhydrous, entecavir (anhydrous), 9-((1S,3R,4S)-4-Hydroxy-3-(Hydroxymethyl)-2-Methylenecyclopentyl)Guanine Monohydrate, Entecavir sodium, 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylene-cyclopentyl]-1H-purin-6-one, 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3H-purin-6-one, (1R,3S,4S)-ent-Entecavir, 2-amino-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-1,9-dihydro-6H-purin-6-one, 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylene-cyclopentyl]-3H-purin-6-one, 9-[(1S,3R,4S)-4-Hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]guanine

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 Entecavir?

The CAS Registry Number of Entecavir is 142217-69-4. It is also known as Entecavir System Suitability Mixture, anhydrous entecavir, Entecavir anhydrous.

What is the molecular formula and molecular weight of Entecavir?

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

What is Entecavir used for?

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 Entecavir can I order?

We supply Entecavir 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 Entecavir?

Yes. Every lot of 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 Entecavir be shipped internationally?

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