Talabostat mesylate

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 202730

CAS#: 150080-09-4 (mesylate)

Description: Talabostat, also known as PT-100 and BXCL701, is dipeptidyl peptidase inhibitor with antineoplastic and hematopoiesis- stimulating activities. By cleaving N-terminal Xaa-Pro or Xaa-Ala residues, talabostat inhibits dipeptidyl peptidases, such as fibroblast activation protein (FAP), resulting in the stimulation of cytokine and chemokine production and specific T-cell immunity and T-cell- dependent activity. This agent may also stimulate the production of colony stimulating factors, such as granulocyte colony stimulating factor (G-CSF), resulting in the stimulation of hematopoiesis. Dipeptidyl peptidases are involved in the activation of polypeptide hormones and chemokines.

Price and Availability


USD 150
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USD 250
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USD 4850

USD 450
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USD 6950

Talabostat mesylate, purity > 98%, is in stock. The same day shipping out after order is received. Note: the estimated shipping out time for order > 2g may be 2 weeks.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 202730
Name: Talabostat mesylate
CAS#: 150080-09-4 (mesylate)
Chemical Formula: C10H23BN2O6S
Exact Mass: 214.15
Molecular Weight: 310.17
Elemental Analysis: C, 50.50; H, 8.95; B, 5.05; N, 13.09; O, 22.42

Related CAS #: 150080-09-4 (mesylate)   149682-77-9 (free base)    

Synonym: BXCL701; BXCL 701; BXCL-701; PT-100, PT100, PT 100, D05989, Val-boro-pro, Talabostat

IUPAC/Chemical Name: (R)-1-((S)-2-amino-3-methylbutanoyl)pyrrolidin-2-ylboronic acid methanesulfonic acid (1:1)


InChi Code: InChI=1S/C9H19BN2O3.CH4O3S/c1-6(2)8(11)9(13)12-5-3-4-7(12)10(14)15;1-5(2,3)4/h6-8,14-15H,3-5,11H2,1-2H3;1H3,(H,2,3,4)/t7-,8-;/m0./s1

SMILES Code: OB([C@H]1N(C([C@@H](N)C(C)C)=O)CCC1)O.CS(=O)(O)=O

Technical Data

Solid powder

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

Safety Data Sheet (MSDS):

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:
>5 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).

Harmonized System Code:


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3: Eager RM, Cunningham CC, Senzer NN, Stephenson J Jr, Anthony SP, O'Day SJ, Frenette G, Pavlick AC, Jones B, Uprichard M, Nemunaitis J. Phase II assessment of talabostat and cisplatin in second-line stage IV melanoma. BMC Cancer. 2009 Jul 30;9:263. PubMed PMID: 19643020; PubMed Central PMCID: PMC2731782.

4: Eager RM, Cunningham CC, Senzer N, Richards DA, Raju RN, Jones B, Uprichard M, Nemunaitis J. Phase II trial of talabostat and docetaxel in advanced non-small cell lung cancer. Clin Oncol (R Coll Radiol). 2009 Aug;21(6):464-72. Epub 2009 Jun 5. PubMed PMID: 19501491.

5: Pennisi A, Li X, Ling W, Khan S, Gaddy D, Suva LJ, Barlogie B, Shaughnessy JD, Aziz N, Yaccoby S. Inhibitor of DASH proteases affects expression of adhesion molecules in osteoclasts and reduces myeloma growth and bone disease. Br J Haematol. 2009 Jun;145(6):775-87. Epub 2009 Apr 8. PubMed PMID: 19388929; PubMed Central PMCID: PMC2748971.

6: Cristillo AD, Galmin L, Restrepo S, Hudacik L, Suschak J, Lewis B, Draghia-Akli R, Aziz N, Weiss D, Markham P, Pal R. HIV-1 Env vaccine comprised of electroporated DNA and protein co-administered with Talabostat. Biochem Biophys Res Commun. 2008 May 23;370(1):22-6. Epub 2008 Mar 7. PubMed PMID: 18329382.

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10: Bayes M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2006 Dec;28(10):719-40. PubMed PMID: 17235418.

11: Molecule of the month. Talabostat. Drug News Perspect. 2006 Jun;19(5):299. PubMed PMID: 16941051.