Valacyclovir HCl

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MedKoo CAT#: 318966

CAS#: 124832-27-5 (HCl)

Description: Valacyclovir is a nucleoside analogue DNA polymerase inhibitor. Valacyclovir is rapidly converted to acyclovir which has demonstrated antiviral activity against HSV types 1 (HSV-1) and 2 (HSV-2) and VZV both in cell culture and in vivo. The EC50 values against herpes simplex virus isolates range from 0.09 to 60 μM (0.02 to 13.5 mcg/mL) for HSV-1 and from 0.04 to 44 μM (0.01 to 9.9 mcg/mL) for HSV-2. The EC50 values for acyclovir against most laboratory strains and clinical isolates of VZV range from 0.53 to 48 μM (0.12 to 10.8 mcg/mL). Acyclovir also demonstrates activity against the Oka vaccine strain of VZV with a mean EC50 of 6 μM (1.35 mcg/mL).

Price and Availability

Size Price Shipping out time Quantity
1g USD 250 2 Weeks
2g USD 450 2 Weeks
5g USD 650 2 Weeks
10g USD 1050 2 Weeks
20g USD 1450 2 Weeks
50g USD 1950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-06-06. Prices are subject to change without notice.

Valacyclovir Hydrochloride, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received. Delivery time: overnight (USA/Canada); 3-5 days (worldwide).

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 318966
Name: Valacyclovir HCl
CAS#: 124832-27-5 (HCl)
Chemical Formula: C13H21ClN6O4
Exact Mass:
Molecular Weight: 360.799
Elemental Analysis: C, 43.28; H, 5.87; Cl, 9.83; N, 23.29; O, 17.74

Related CAS #: 124832-27-5 (HCl)   124832-26-4 (free base)    

Synonym: 256U; 256U87; Vacyclovir, L-valyl ester; BW256U87; L-valylacyclovir; Valacyclovir Hydrochloride; Valtrex; Zelitrex.

IUPAC/Chemical Name: 2-[(2-amino-6-oxo-3H-purin-9-yl)methoxy]ethyl (2S)-2-amino-3-methylbutanoate hydrochloride


InChi Code: InChI=1S/C13H20N6O4.ClH/c1-7(2)8(14)12(21)23-4-3-22-6-19-5-16-9-10(19)17-13(15)18-11(9)20;/h5,7-8H,3-4,6,14H2,1-2H3,(H3,15,17,18,20);1H/t8-;/m0./s1


Technical Data

White solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


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