TAS 205

CAS NO.：1584160-52-0
Empirical Formula: C27H36N6O4.H2O
Molecular Weight: 526.63
Update Date: 2026-04-21 10:31:43

What is TAS 205?

Biological Activity

TAS 205 is an inhibitor of hematopoietic prostaglandin D synthase (H-PGDS; IC50 = 55.8 nM).1 It is selective for H-PGDS over lipocalin-type PGDS (L-PGDS) at 100 μM, as well as over enzyme and receptor panels at 10 μM. TAS 205 inhibits production of prostaglandin D2 induced by A23187 in KU812 human and RBL-2H3 rat basophils with IC50 values of 78.3 and 181.3 nM, respectively. It inhibits ovalbumin-induced nasal lavage fluid eosinophil infiltration and late-phase nasal obstruction in an ovalbumin-sensitized guinea pig model of allergic rhinitis when administered at a dose of 30 mg/kg.

References

1.Aoyagi, H., Kajiwara, D., Tsunekuni, K., et al.Potential synergistic effects of novel hematopoietic prostaglandin D synthase inhibitor TAS-205 and different types of anti-allergic medicine on nasal obstruction in a Guinea pig model of experimental allergic rhinitisEur. J. Pharmacol.875173030(2020)

Properties of TAS 205

storage temp.	-20°C
solubility	DMF: 30 mg/ml,DMSO: 30 mg/ml,Ethanol: 30 mg/ml,Ethanol:PBS (pH 7.2) (1:4): 0.20 mg/ml
form	A crystalline solid

Safety information for TAS 205

Computed Descriptors for TAS 205

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