AA 29504, {2-amino-4-(2, 4, 6-trimethylbenzylamino)-phenyl}-carbamic acid ethyl ester is a positive modulator of extrasynaptic GABAA receptors. AA 29504 is also an analogue of the KCNQ channel opener retigabine with a 3-4 fold lower potency than retigabine. The EC50 of AA 29504 at KCNQ channels is between 9.6 and 13.5 μM . AA 29504 at 1 µM had no agonist activity when tested at α1β3γ2s or α4β3δ GABAA receptors expressed in Xenopus oocytes, but left-shifted the EC50 of GABA and gaboxadol (THIP) at both receptors. The maximum GABA response was unchanged at α1β3γ2s receptors by AA 29504 (1 µM), but increased 3-fold at α4β3δ receptors . GABA transiently activates synaptic GABAA receptors, leading to the classical inhibitory post-synaptic currents (phasic inhibition) . KCNQ (also termed Kv7) channels are voltage-dependent potassium channels composed of homo- and heteromeric complexes of five different KCNQ subunits (KCNQ1–5, or called Kv7.1–Kv7.5) . In Xenopus oocytes, AA 29504 at concentrations below 3 µM exhibited no intrinsic activity, whereas at 3 µM and above AA 29504 could induce a small response, which could not be blocked by bicuculline. Treatment with AA 29504 at a concentration of 1 µM showed no intrinsic activity at GABAA receptors and KCNQ channels, but left-shifted the concentration-response curve of GABA without affecting the maximum response to GABA .

Product information

CAS Number: 945828-50-2

Molecular Weight: 327.42

Formula: C19H25N3O2

Chemical Name: (E)-N-(2-amino-4-{[(2,4,6-trimethylphenyl)methyl]amino}phenyl)ethoxycarboximidic acid

Smiles: CCO/C(/O)=N/C1C=CC(=CC=1N)NCC1C(C)=CC(C)=CC=1C

InChiKey: SCOOTUMXCXKEAD-UHFFFAOYSA-N

InChi: InChI=1S/C19H25N3O2/c1-5-24-19(23)22-18-7-6-15(10-17(18)20)21-11-16-13(3)8-12(2)9-14(16)4/h6-10,21H,5,11,20H2,1-4H3,(H,22,23)

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

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