3-Deazauridine (NSC 126849) is a uridine analog. 3-Deazauridine inhibits the biosynthesis of cytidine-5'-triphosphate by competitively inhibiting cytidine triphosphate synthetase. 3-Deazauridine acts synergistically with several antineoplastic/anticancer agents and works as a biological response modifier.

Physicochemical Properties

Molecular Formula	C10H13NO6
Molecular Weight	243.21
Exact Mass	243.074
CAS #	23205-42-7
PubChem CID	54684286
Appearance	Off-white to light yellow solid powder
Density	1.718g/cm3
Boiling Point	528ºC at 760mmHg
Melting Point	233-235ºC
Flash Point	273.1ºC
Vapour Pressure	0mmHg at 25°C
Index of Refraction	1.706
LogP	-1.8
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	2
Heavy Atom Count	17
Complexity	379
Defined Atom Stereocenter Count	4
SMILES	C1=CN(C(=O)C=C1O)[C@H]2[C@@H]([C@@H]([C@H](O2)CO)O)O
InChi Key	CBOKZNLSFMZJJA-PEBGCTIMSA-N
InChi Code	InChI=1S/C10H13NO6/c12-4-6-8(15)9(16)10(17-6)11-2-1-5(13)3-7(11)14/h1-3,6,8-10,12-13,15-16H,4H2/t6-,8-,9-,10-/m1/s1
Chemical Name	1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-hydroxypyridin-2-one
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: This product requires protection from light (avoid light exposure) during transportation and storage.
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

Targets	Cytidine triphosphate synthase[1]
ln Vitro	3-Deazauridine (DAUR) has superior anti-tumor properties when applied to L1210 leukemia cells [1].
ln Vivo	3-Deazauridine (DAUR) (250 mg/kg/day; intraperitoneally; days 1–9) inhibits L1210 leukemia cells in mice with modest efficacy [1]. 3-Deazauridine (intraperitoneal injection; 5 doses): In beagle dogs and rhesus monkeys, the lethal doses are 250 mg/kg/day and 417 mg/kg/day, respectively; the lowest toxic doses are 62.5 mg/kg/day and 104 mg/kg/day, while the non-toxic doses are 31.25 mg/kg/day and 52 mg/kg/day, respectively[1].
References	[1]. 3-Deazauridine (NSC 126849): an interesting modulator of biochemical response. Invest New Drugs. 1986;4(1):67-84.
Additional Infomation	3-Deazauridine is a N-glycosyl compound. 3-Deazauridine is a synthetic analogue of nucleoside uridine lacking a ring nitrogen in the 3-position. 3-deazauridine inhibits cytidine synthase, thereby reducing intracellular levels of cytidine and deoxycytidine and disrupting DNA and RNA synthesis. This agent may trigger apoptosis and enhance differentiation of neoplastic cells.(NCI04) 4-Hydroxy-1-(beta-D-ribofuranosyl)-2-pyridinone. Analog of uridine lacking a ring-nitrogen in the 3-position. Functions as an antineoplastic agent.

Solubility Data

Solubility (In Vitro)

DMSO : 100 mg/mL (411.17 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2 mg/mL (8.22 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% 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 20.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2 mg/mL (8.22 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 20.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. 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.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	4.1117 mL	20.5584 mL	41.1167 mL
	5 mM	0.8223 mL	4.1117 mL	8.2233 mL
	10 mM	0.4112 mL	2.0558 mL	4.1117 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.