Tasidotin hydrochloride is a peptide analog of the antimitotic depsipeptide dolastatin 15, as an inhibitor of microtubule assembly and microtubule dynamics.

Product information

CAS Number: 623174-20-9

Molecular Weight: 643.30

Formula: C32H59ClN6O5

Chemical Name: (2S)-N-tert-butyl-1-[(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-(dimethylamino)-3-methylbutanamido]-N,3-dimethylbutanamido]-3-methylbutanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carboxamide hydrochloride

Smiles: Cl.CN(C)[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N(C)[C@@H](C(C)C)C(=O)N1CCC[C@H]1C(=O)N1CCC[C@H]1C(=O)NC(C)(C)C

InChiKey: OOKIODJYZSVHDO-QMYFOHRPSA-N

InChi: InChI=1S/C32H58N6O5.ClH/c1-19(2)24(33-28(40)25(20(3)4)35(10)11)30(42)36(12)26(21(5)6)31(43)38-18-14-16-23(38)29(41)37-17-13-15-22(37)27(39)34-32(7,8)9;/h19-26H,13-18H2,1-12H3,(H,33,40)(H,34,39);1H/t22-,23-,24-,25-,26-;/m0./s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Compared with other breast carcinoma lines, relatively low amounts of Tasidotin enters NCI/ADR-RES cells, consistent with Tasidotin's also being a P-glycoprotein substrate. Of the remaining lines, the greatest difference in sensitivity to Tasidotin is between the more sensitive MDA-MB-435 line and the less sensitive HS 578-T line. The IC50 values in the two lines are 4 and 200 nM, respectively. The IC50 in Ewing's sarcoma, rhabdomyosarcoma, osteosarcoma, and synovial sarcoma lines ranges from 2 to 320 nM. In the SK-ES1 and RH30 cell lines, Tasidotin induces a G2-M arrest that persists for 48 h after Tasidotin is washed from the cells. In vitro, more than half the cells are in the early or late phase of apoptosis 48 h after treatment with Tasidotin. Following treatment for 24 h with 160 nM Tasidotin, the RH30 line and SK-ES1 line each shows an accumulation of cells in the G2-M phase. At hour 24, nearly all the RH30 cells are in the G2-M phase.

In Vivo:

In vivo, a significant increase in apoptotic nuclei is apparent in xenograft tumors harvested within 24 h after a 5-day course of Tasidotin. Mice treated with 100 mg/kg have a mean weight loss of >20% with no return to their baseline starting weight, and one mouse dies before the second treatment course. The mice treated with 90 mg/kg/d Tasidotin have a mean weight loss of <16% following each 5-day treatment of Tasidotin.

Products are for research use only. Not for human use.