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SML1983

PSB-603

≥98% (HPLC)

Synonym(s):

PSB 603, PSB603, 8-[4-[[4-(4-Chlorophenyl)-1-piperazinyl]sulfonyl]phenyl]-3,9-dihydro-1-propyl-1H-purine-2,6-dione, 8-(4-(4-(4-Chlorophenyl)piperazide-1-sulfonyl)phenyl)-1-propylxanthine

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About This Item

Empirical Formula (Hill Notation):
C24H25ClN6O4S
CAS Number:
1092351-10-4
Molecular Weight:
529.01
NACRES:
NA.77
UNSPSC Code:
12352200
Assay:
≥98% (HPLC)
Form:
powder
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assay

≥98% (HPLC)

form

powder

color

white to brownish

solubility

DMSO: 2 mg/mL to clear

shipped in

ambient

storage temp.

2-8°C

SMILES string

O=C(N1CCC)NC2=C(N=C(C3=CC=C(S(=O)(N4CCN(C5=CC=C(Cl)C=C5)CC4)=O)C=C3)N2)C1=O

InChI

1S/C24H25ClN6O4S/c1-2-11-31-23(32)20-22(28-24(31)33)27-21(26-20)16-3-9-19(10-4-16)36(34,35)30-14-12-29(13-15-30)18-7-5-17(25)6-8-18/h3-10H,2,11-15H2,1H3,(H,26,27)(H,28,33)

InChI key

OVHCTHHFOHMNFV-UHFFFAOYSA-N

Biochem/physiol Actions

PSB-603 is known to modify cellular metabolism and enhance cellular sensitivity for chemotherapy. Thus, PSB-603 is recognized to possess anticancer action, which has been studied in colorectal cancer.
A high-affinity, selective antagonist against A2b adenosine receptor (A2b-AR, A2bR).
PSB-603 is an adenosine receptor A2b antagonist (IC50 = 1.13 nM against 10 μM A2bR agonist NECA-induced calcium response in Jurkat T cells in the presence of 200 nM A2aR antagonist MSX-2) that targets A2bR with high affinity (KD = 0.403 nM/human, 0.457 nM/rat, 4.09 nM/mouse A2bR; Ki against 0.3 nM [3H]PSB-603 = 0.553 nM/human, 0.355 nM/rat, 0.265 nM/mouse A2bR) and selectivity, exhibiting little affinity toward A1, A2a, or A3 adenosine receptors by competition binding assay (Ki >10 μM against 0.4 nM [3H]DPCPX for human/rat A1R, 1 nM [3H]MSX-2 for human/mouse/rat A2aR, 10 nM [3H]NECA for human/mouse/rat A3R) with the exception of mouse A1R (Ki = 42.2 nM against 0.4 nM [3H]DPCPX).

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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