Penciclovir

Also known as: BRL-39123, BRL-39123A, Vectavir, Denavir, PCV, VSA 671, CL200, Penciclovirum, Pencyclovir, 2-Amino-9-[4-hydroxy-3-(hydroxymethyl)butyl]-3,9-dihydropurin-6-one, 2-Amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)butyl]-6H-purin-6-one, 2-Amino-9-[4-hydroxy-3-(hydroxymethyl)butyl]-1H-purin-6-one, 9-[4-Hydroxy-3-(hydroxymethyl)butyl]guanine, Famciclovir Impurity 4, UNII-359HUE8FJC

Penciclovir (CAS 39809-25-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H15N5O3 and a molecular weight of 253.258 g/mol. Key properties include a melting point of 275-277°C, a boiling point of 636.7±65.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 338.9±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39809-25-1
Jingsj CID: J-11412-5
Molecular Formula: C₁₀H₁₅N₅O₃
Molecular Weight: 253.258 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	275-277°C
Boiling Point	636.7±65.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	338.9±34.3 °C
Exact Mass	253.117493
PSA	130.05000
LogP	-3.58
Vapor Pressure	0.0±2.0 mmHg at 25°C
Refractive Index	1.749
Storage Conditions	-20°C Freezer

Activity & Biological Data

Target	IC50: 0.04-1.8 μg/mL (HSV-1), 0.06-4.4 μg/mL (HSV-2), 1.6-8 μg/mL (VZV), 1.5-3.1 μg/mL (EBV), 51 μg/mL (HCMV)[1]
Additional Information	[1]. Piret J, et al. Resistance of herpes simplex viruses to nucleoside analogues: mechanisms, prevalence, and management. Antimicrob Agents Chemother. 2011 Feb;55(2):459-72. [2]. Xiong Z, et al. Imaging chemically modified adenovirus for targeting tumors expressing integrin alphavbeta3 in living micewith mutant herpes simplex virus type 1 thymidine kinase PET reporter gene. J Nucl Med. 2006 Jan;47(1):130-9.

Target

IC50: 0.04-1.8 μg/mL (HSV-1), 0.06-4.4 μg/mL (HSV-2), 1.6-8 μg/mL (VZV), 1.5-3.1 μg/mL (EBV), 51 μg/mL (HCMV)[1]

Additional Information

[1]. Piret J, et al. Resistance of herpes simplex viruses to nucleoside analogues: mechanisms, prevalence, and management. Antimicrob Agents Chemother. 2011 Feb;55(2):459-72. [2]. Xiong Z, et al. Imaging chemically modified adenovirus for targeting tumors expressing integrin alphavbeta3 in living micewith mutant herpes simplex virus type 1 thymidine kinase PET reporter gene. J Nucl Med. 2006 Jan;47(1):130-9.

Frequently Asked Questions

What is the CAS number of Penciclovir?

The CAS number of Penciclovir is 39809-25-1.

What are the molecular formula and molecular weight of Penciclovir?

Penciclovir has molecular formula C10H15N5O3 and molecular weight 253.258 g/mol.

What are the upstream and downstream products of Penciclovir?

For Penciclovir, Upstream Products: 9-(4-Acetoxy-3-acetoxymethylbutyl)-2-amino-6-chloropurine, Triethyl 1,1,2-ethanetricarboxylate, 2-(hydroxymethyl)butane-1,4-diol; Downstream Products: Tosyl-FHBG, 9-(4-Acetoxy-3-acetoxymethylbutyl)-2-amino-6-chloropurine, 6-Deoxypenciclovir.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Penciclovir (CAS 39809-25-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11412-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.