BW 348U87 is a ribonucleotide reductase inhibitor that acts synergistically with Acyclovir and enhances the antiviral activity of Acyclovir against herpes simplex virus (HSV) in an athymic nude mouse model.

Physicochemical Properties

Molecular Formula	C15H15CLN6S2
Molecular Weight	378.90
CAS #	127142-14-7
Appearance	Typically exists as solids at room temperature
SMILES	S=C(N/N=C(/C1=CC=CC=N1)\C)NNC(NC1=CC=CC=C1Cl)=S
Synonyms	348U87
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: (1). This product requires protection from light (avoid light exposure) during transportation and storage.(2). Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Spector T, et al., Inactivators of herpes simplex virus ribonucleotide reductase: hematological profiles and in vivo potentiation of the antiviral activity of acyclovir. Antimicrob Agents Chemother. 1992 May;36(5):934-7.

Solubility Data

Solubility (In Vitro)

DMSO : ~25 mg/mL (~65.98 mM; with ultrasonication)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 1.25 mg/mL (3.30 mM) (saturation unknown) in 10% DMSO +40% PEG300 +5% Tween-80 +45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution。 Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 1.25 mg/mL (3.30 mM) (saturation unknown) in 10% DMSO +90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution。 For example, if 1 mL of working solution is to be prepared, You can add 100 μL of the 12.5 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD in saline and mix well. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 1.25 mg/mL (3.30 mM) (saturation unknown) in 10% DMSO +90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution。 For example, if 1 mL of working solution is to be prepared, You can add 100 μL of the 12.5 mg/mL clear DMSO stock solution to 900 μL corn oil and mix well. " (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.6392 mL	13.1961 mL	26.3922 mL
	5 mM	0.5278 mL	2.6392 mL	5.2784 mL
	10 mM	0.2639 mL	1.3196 mL	2.6392 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.