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Cat. No. M1883
Ubenimex Structure


Size Price Availability Quantity
10mg USD 80 In stock
50mg USD 220 In stock
100mg USD 380 In stock
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Quality Control
Biological Activity

Ubenimex (Bestatin) is an inhibitor of aminopeptidase B, leukotriene A4 hydrolase, aminopeptidase N (Ki = 0.001 - 90 mM). Ubenimex inhibits enkephalin metabolism and leukotriene A4 hydrolase. Bestatin also inhibits tumor cell proliferation. Bestatin induced cell growth inhibition and phenotypic changes of HL-60 and HL-60R cell lines. In vitro, the upregulation of CD13/aminopeptidase N was found after 1 hr, however, the downregulation was observed after 3 hrs incubation with Ubenimex (Bestatin). On the other hand, the downregulation of CD15 and CD33 was observed after both one and 3 hrs incubation. Ubenimex may also be an effective anti-leukemic agent in vivo.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 308.38
Formula C16H24N2O4
CAS Number 58970-76-6
Purity 100.00%
Solubility DMSO
Storage at -20°C

Effect of ubenimex (Bestatin) on the cell growth and phenotype of HL-60 and HL-60R cell lines: up-and down-regulation of CD13/aminopeptidase N.
Imamura N, et al. Leuk Lymphoma. 2000 May;37(5-6):663-7. PMID: 11042531.

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Keywords: Ubenimex, Bestatin supplier, Aminopeptidase, inhibitors

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