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

MedKoo CAT#: 555252

CAS#: 1026582-88-6

Description: RO-3 is a selective P2X3 and P2X2/3 antagonist.

Price and Availability

Size Price Shipping out time Quantity
100mg USD 1150 2 Weeks
200mg USD 1850 2 Weeks
500mg USD 2650 2 Weeks
1g USD 3850 2 Weeks
2g USD 5450 2 Weeks
5g USD 9450 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-20. Prices are subject to change without notice.

RO-3, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 555252
Name: RO-3
CAS#: 1026582-88-6
Chemical Formula: C16H22N4O2
Exact Mass: 302.1743
Molecular Weight: 302.378
Elemental Analysis: C, 63.55; H, 7.33; N, 18.53; O, 10.58

Synonym: RO-3; RO 3; RO3.

IUPAC/Chemical Name: 5-(2-isopropyl-4,5-dimethoxybenzyl)pyrimidine-2,4-diamine


InChi Code: InChI=1S/C16H22N4O2/c1-9(2)12-7-14(22-4)13(21-3)6-10(12)5-11-8-19-16(18)20-15(11)17/h6-9H,5H2,1-4H3,(H4,17,18,19,20)


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:


1: McCord JL, Tsuchimochi H, Kaufman MP. P2X2/3 and P2X3 receptors contribute to
the metaboreceptor component of the exercise pressor reflex. J Appl Physiol
(1985). 2010 Nov;109(5):1416-23. doi: 10.1152/japplphysiol.00774.2010. Epub 2010
Aug 26. PubMed PMID: 20798273; PubMed Central PMCID: PMC2980379.