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MedKoo CAT#: 531566

CAS#: 154978-38-8

Description: BAYu9773 is a dual non-selective, CysLT1 and CysLT2 receptor antagonist, having about the same IC50 (20-80 nM) for the inhibition of LT responses in a variety of tissue preparations containing either/or both receptors.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-10-29. Prices are subject to change without notice.

BAYu9773 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 531566
Name: BAYu9773
CAS#: 154978-38-8
Chemical Formula: C27H36O5S
Exact Mass: 472.2283
Molecular Weight: 472.64
Elemental Analysis: C, 68.61; H, 7.68; O, 16.93; S, 6.78

Synonym: BAYu9773; BAY-u9773; BAY u9773.

IUPAC/Chemical Name: 4-{[(4S,5R,6E,8E,10Z,13Z)-1-carboxy-4-hydroxynonadeca-6,8,10,13-tetraen-5-yl]sulfanyl}benzoic acid


InChi Code: InChI=1S/C27H36O5S/c1-2-3-4-5-6-7-8-9-10-11-12-13-16-25(24(28)15-14-17-26(29)30)33-23-20-18-22(19-21-23)27(31)32/h6-7,9-13,16,18-21,24-25,28H,2-5,8,14-15,17H2,1H3,(H,29,30)(H,31,32)/b7-6-,10-9-,12-11+,16-13+/t24-,25+/m0/s1


Technical Data

Solid powder

>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).

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:


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5: Hui Y, Yang G, Galczenski H, Figueroa DJ, Austin CP, Copeland NG, Gilbert DJ, Jenkins NA, Funk CD. The murine cysteinyl leukotriene 2 (CysLT2) receptor. cDNA and genomic cloning, alternative splicing, and in vitro characterization. J Biol Chem. 2001 Dec 14;276(50):47489-95. PubMed PMID: 11591709.

6: Bannenberg G, Dahlén SE, Luijerink M, Lundqvist G, Morgenstern R. Leukotriene C4 is a tight-binding inhibitor of microsomal glutathione transferase-1. Effects of leukotriene pathway modifiers. J Biol Chem. 1999 Jan 22;274(4):1994-9. PubMed PMID: 9890956.