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

MedKoo CAT#: 407312

CAS#: 163769-88-8

Description: YM-90709 is an interleukin-5 receptor antagonist. YM-90709 inhibits the binding of IL-5 to its receptor on peripheral human eosinophils and butyric acid-treated eosinophilic HL-60 clone 15 cells, with IC50 values of 1.0 and 0.57 microM, respectively. In functional assays, YM-90709 inhibited IL-5-prolonged eosinophil survival with an IC50 value of 0.45 microM and did not affect the GM-CSF-prolonged eosinophil survival. Furthermore, YM-90709 inhibited the IL-5-induced but not GM-CSF-induced tyrosine phosphorylation of Janus kinase 2 (JAK2) in eosinophilic HL-60 clone 15 cells.

Price and Availability

Size Price Shipping out time Quantity
10mg USD 150 2 Weeks
25mg USD 250 2 Weeks
50mg USD 450 2 Weeks
100mg USD 650 2 Weeks
200mg USD 950 2 Weeks
500mg USD 1950 2 Weeks
1g USD 2950 2 Weeks
2g USD 3950 2 Weeks
5g USD 6550 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-24. Prices are subject to change without notice.

YM-90709, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. Delivery time: overnight (USA/Canada); 3-5 days (worldwide). Shipping fee: from $30.00 (USA); from $45.00 (Canada); from $70.00 (international).

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 407312
Name: YM-90709
CAS#: 163769-88-8
Chemical Formula: C22H21N3O2
Exact Mass: 359.1634
Molecular Weight: 359.429
Elemental Analysis: C, 73.52; H, 5.89; N, 11.69; O, 8.90

Synonym: YM-90709; YM 90709; YM90709.

IUPAC/Chemical Name: 2,3-dimethoxy-6,6-dimethyl-5,6-dihydrobenzo[7,8]indolizino[2,3-b]quinoxaline


InChi Code: InChI=1S/C22H21N3O2/c1-22(2)12-13-9-19(26-3)20(27-4)10-14(13)18-11-17-21(25(18)22)24-16-8-6-5-7-15(16)23-17/h5-11H,12H2,1-4H3


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, not in water

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:


1: Morokata T, Suzuki K, Ida K, Yamada T. Effect of a novel interleukin-5
receptor antagonist, YM-90709, on antigen-induced eosinophil infiltration into
the airway of BDF1 mice. Immunol Lett. 2005 Apr 15;98(1):161-5. Epub 2004 Nov 28.
PubMed PMID: 15790522.

2: Morokata T, Suzuki K, Ida K, Tsuchiyama H, Ishikawa J, Yamada T. Effect of a
novel interleukin-5 receptor antagonist, YM-90709
on antigen-induced airway inflammation in BN rats. Int Immunopharmacol. 2004
Jul;4(7):873-83. PubMed PMID: 15182727.

3: Morokata T, Ida K, Yamada T. Characterization of YM-90709 as a novel
antagonist which inhibits the binding of interleukin-5 to interleukin-5 receptor.
Int Immunopharmacol. 2002 Nov;2(12):1693-702. PubMed PMID: 12469943.