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Cat. No. M1883
Ubenimex Structure


Size Price Availability Quantity
10mg USD 80  USD80 In stock
50mg USD 215  USD215 In stock
100mg USD 360  USD360 In stock
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Quality Control & Documentation
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.

Product Citations
Customer Product Validations & Biological Datas
Source Nan Fang Yi Ke Da Xue Xue Bao (2020 Oct), Figure 3, Ubenimex (Abmole Bioscience)
Method oral gavage
Cell Lines Japanese white rabbits
Concentrations 8 mg/kg·d
Incubation Time 5 days
Results Compared with those in PM group, the rabbits in group BPM showed significantly reduced LTB4 production in the lungs (P < 0.05), up-regulated cAMP/ PKA and Rap1 signaling pathway activities (P < 0.05), and alleviated lung hyper-permeability and inflammation (P < 0.05).
Chemical Information
Molecular Weight 308.38
Formula C16H24N2O4
CAS Number 58970-76-6
Solubility (25°C) DMSO 3 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
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 Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 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 Compound A of 10 mg/kg.


[1] Imamura N, et al. Leuk Lymphoma. 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.

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Keywords: Ubenimex, Bestatin supplier, Aminopeptidase, inhibitors, activators

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