A 33
- Product Name
- A 33
- CAS No.
- 915082-52-9
- Chemical Name
- A 33
- Synonyms
- A-33;PDE4B-IN-2;PDE4B-IN-2, 10 mM in DMSO;Benzeneacetic acid, 4-[[2-(5-chloro-2-thienyl)-5-ethyl-6-methyl-4-pyrimidinyl]amino]-;2-(4-{[2-(5-chlorothiophen-2-yl)-5-ethyl-6-methylpyrimidin-4-yl]amino}phenyl)acetic acid
- CBNumber
- CB31124771
- Molecular Formula
- C19H18ClN3O2S
- Formula Weight
- 387.88
- MOL File
- 915082-52-9.mol
A 33 Property
- storage temp.
- Store at -20°C
- solubility
- 38.7mg/ml in DMSO
- form
- Solid
- color
- White to off-white
- InChI
- InChI=1S/C19H18ClN3O2S/c1-3-14-11(2)21-19(15-8-9-16(20)26-15)23-18(14)22-13-6-4-12(5-7-13)10-17(24)25/h4-9H,3,10H2,1-2H3,(H,24,25)(H,21,22,23)
- InChIKey
- FDVSPBLZPJMXFV-UHFFFAOYSA-N
- SMILES
- C1(CC(O)=O)=CC=C(NC2C(CC)=C(C)N=C(C3SC(Cl)=CC=3)N=2)C=C1
N-Bromosuccinimide Price
- Product number
- SML2121
- Product name
- A-33
- Purity
- ≥98% (HPLC)
- Packaging
- 5MG
- Price
- $108
- Updated
- 2025/07/31
- Product number
- SML2121
- Product name
- A-33
- Purity
- ≥98% (HPLC)
- Packaging
- 25MG
- Price
- $414.2
- Updated
- 2025/07/31
- Product number
- 6313
- Product name
- A33
- Purity
- ≥98%(HPLC)
- Packaging
- 10
- Price
- $169
- Updated
- 2021/12/16
A 33 Chemical Properties,Usage,Production
Uses
PDE4B-IN-2 is an orally active and selective PDE4B inhibitor with an IC50 of 15 nM. PDE4B-IN-2 inhibits PDE4D (IC50=1.7 μM). PDE4B-IN-2 exhibits potent anti-inflammatory effects[1].
Biochem/physiol Actions
A-33 (A33) is a potent and selective catalytic site-targeting PDE4B inhibitor (IC50 = 15 nM/PDE4B vs. 1.7 μM/PDE4D) that effectively prevents PDE4B-medicated cellular cAMP hydrolysis (150%/320% increased cAMP level with 100 nM/1 μM A-33 pre-treament in murine hippocampal HT-22 cells following 10 nM isoproterenol stimulation) in vitro and inhibits LPS-induced TNF-α production in mice in vivo (ID50 = 14 mg/kg p.o.). When administered via intraperitoneal injection, A-33 improves cognitive function in a rat model of traumatic brain injury (0.3 mg/kg i.p.) and exhibits antidepressant property in mice (0.3-1 mg/kg i.p.) in vivo.
in vivo
PDE4B-IN-2 (compound 33; 2 mg/kg; po) has a Cmax of 8.7 μg/mL and an AUC of 52.3 μg h/mL in mice[1].
IC 50
PDE4B: 15 nM (IC50); PDE4D: 1.7 μM (IC50)
storage
Store at -20°C
References
[1] Kenji Naganuma, et al. Discovery of selective PDE4B inhibitors. Bioorg Med Chem Lett. 2009 Jun 15;19(12):3174-6. DOI:10.1016/j.bmcl.2009.04.121
A 33 Preparation Products And Raw materials
Raw materials
Preparation Products
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