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API Process Intermediates & Related Compounds

ent-Entecavir

Reference StandardIn stock

Order ent-Entecavir (CAS 188399-46-4) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-012457.

Pack sizes
ent-Entecavir chemical structure
CAS number188399-46-4
FormulaC12H15N5O3
Molar mass277.28 g/mol
Physical formSolid
HS code2933
InChIKeyQDGZDCVAUDNJFG-BWZBUEFSSA-N
IUPAC name2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one

About ent-Entecavir

ent-Entecavir sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. For your records (Reference Standard), the material is defined by CAS 188399-46-4, formula C12H15N5O3 and molar mass 277.28 g/mol. It is handled as a solid.

Use cases we see most often

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Safe handling

Handle with the usual laboratory precautions and consult the SDS supplied with each lot.

Order it in 5 mg packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Entecavir

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

Entecavir standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of ent-Entecavir
Product nameent-Entecavir
Catalogue numberZX-012457
CAS number188399-46-4
IUPAC name2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one
Molecular formulaC12H15N5O3
Molar mass277.28 g/mol
Exact mass277.1175
GradeReference Standard
Physical formSolid
XLogP3-1.3
H-bond donors / acceptors4 / 5
Topological polar surface area126 Ų
HS code2933
InChIKeyQDGZDCVAUDNJFG-BWZBUEFSSA-N
SMILESC=C1[C@@H](C[C@H]([C@@H]1CO)O)N2C=NC3=C2N=C(NC3=O)N
PubChem CID135742598
SynonymsEntecavir Enantiomer, (1R,3S,4R)-Entecavir, (1R,3S,4R)-ent-Entecavir, 1R 3S 4R-Ent-Entecavir

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 ent-Entecavir
5 mgQuoted on request

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

Questions about ent-Entecavir

Which CAS number identifies ent-Entecavir?
ent-Entecavir is registered under CAS 188399-46-4. You may also see it listed as Entecavir Enantiomer, (1R,3S,4R)-Entecavir, (1R,3S,4R)-ent-Entecavir. Our catalogue number for this item is ZX-012457.
What are the formula and molar mass of ent-Entecavir?
For ent-Entecavir, its formula is C12H15N5O3 and its molar mass is 277.28 g/mol. The systematic (IUPAC) name is 2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one. InChIKey QDGZDCVAUDNJFG-BWZBUEFSSA-N lets you match it in any structure database.
How is ent-Entecavir used in pharmaceutical QC?
ent-Entecavir is a characterised reference material linked to Entecavir. 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 ent-Entecavir?
This listing is Reference Standard grade. Standard packs are 5 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with ent-Entecavir?
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 ent-Entecavir to my country?
Yes. ent-Entecavir ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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