A 33
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    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 584987

CAS#: 915082-52-9

Description: A 33 is a potent and selective PDE4B inhibitor.


Chemical Structure

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A 33
CAS# 915082-52-9

Theoretical Analysis

MedKoo Cat#: 584987
Name: A 33
CAS#: 915082-52-9
Chemical Formula: C19H18ClN3O2S
Exact Mass: 387.0808
Molecular Weight: 387.882
Elemental Analysis: C, 58.83; H, 4.68; Cl, 9.14; N, 10.83; O, 8.25; S, 8.27

Price and Availability

Size Price Availability Quantity
10.0mg USD 350.0 2 Weeks
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Synonym: A 33; A33; A-33

IUPAC/Chemical Name: 2-[4-[[2-(5-Chloro-2-thienyl)-5-ethyl-6-methyl-pyrimidin-4-yl]amino]phenyl]acetic acid

InChi Key: FDVSPBLZPJMXFV-UHFFFAOYSA-N

InChi Code: 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)

SMILES Code: O=C(O)CC1=CC=C(NC2=NC(C3=CC=C(Cl)S3)=NC(C)=C2CC)C=C1

Appearance: Solid powder

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

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).

Solubility: Soluble in DMSO

Shelf Life: >3 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).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 387.882 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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Naganuma et al (2009) Discovery of selective PDE4B inhibitors. Bioorg.Med.Chem.Lett. 19 3174 PMID: 19447034

Zhang et al (2017) Comparison of the pharmacological profiles of selective PDE4B and PDE4D inhibitors in the central nervous system. Sci.Rep. 7 40115 PMID: 28054669

Wilson et al (2017) Therapeutic benefits of phosphodiesterase 4B inhibition after traumatic brain injury. PLoS One 12 e0178013 PMID: 28542295

A 33

10.0mg / USD 350.0