MedKoo Cat#: 555208 | Name: A-940894

Description:

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

A-940894 is a potent histamine H4 receptor antagonist with anti-inflammatory properties. A-940894 potently binds to both human and rat histamine H4 receptors and exhibits considerably lower affinity for the human histamine H1, H2 or H3 receptors. It potently blocked histamine-evoked calcium mobilization in the fluorometric imaging plate reader assays and inhibited histamine-induced shape change of mouse bone marrow-derived mast cells and chemotaxis of human eosinophils in vitro. A-940894 has good pharmacokinetic properties, including half-life and oral bioavailability in rats and mice.

Chemical Structure

A-940894
A-940894
CAS#1027330-82-0 (free base)

Theoretical Analysis

MedKoo Cat#: 555208

Name: A-940894

CAS#: 1027330-82-0 (free base)

Chemical Formula: C17H21N5

Exact Mass: 295.1797

Molecular Weight: 295.39

Elemental Analysis: C, 69.12; H, 7.17; N, 23.71

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.
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Related CAS #
1027330-82-0 (free base) 1072114-55-6 (maleate)
Synonym
A-940894; A 940894; A940894.
IUPAC/Chemical Name
4-piperazin-1-yl-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-2-ylamine
InChi Key
KUZRWWLVBUPCRK-UHFFFAOYSA-N
InChi Code
InChI=1S/C17H21N5/c18-17-20-15-13-6-2-1-4-12(13)5-3-7-14(15)16(21-17)22-10-8-19-9-11-22/h1-2,4,6,19H,3,5,7-11H2,(H2,18,20,21)
SMILES Code
NC1=NC(N2CCNCC2)=C(CCCC3=CC=CC=C34)C4=N1
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
>2 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
More Info
A-940894 is a potent and selective histamine H4 receptor antagonist with pharmacokinetic properties suitable for long-term in vivo testing and could serve as a useful tool for the further characterization of histamine H4 receptor pharmacology.

Preparing Stock Solutions

The following data is based on the product molecular weight 295.39 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
1: Strakhova MI, Cuff CA, Manelli AM, Carr TL, Witte DG, Baranowski JL, Vortherms TA, Miller TR, Rundell L, McPherson MJ, Adair RM, Brito AA, Bettencourt BM, Yao BB, Wetter JM, Marsh KC, Liu H, Cowart MD, Brioni JD, Esbenshade TA. In vitro and in vivo characterization of A-940894: a potent histamine H4 receptor antagonist with anti-inflammatory properties. Br J Pharmacol. 2009 May;157(1):44-54. doi: 10.1111/j.1476-5381.2009.00236.x. PubMed PMID: 19413570; PubMed Central PMCID: PMC2697788.