Orders received during 11/25~11/29 will be shipped in 11/30/2020 due to Thanksgiving holiday.

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

MedKoo CAT#: 565304


Description: NIR-O2˙– is a NIR NIR O2˙– probe which displays superior sensitivity to NIR O2˙– and has the capability to monitor trace amounts of intracellular NIR O2˙– in AKI in vivo.

Price and Availability

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2020-11-25. Prices are subject to change without notice.

NIR-O2˙– 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#: 565304
Name: NIR-O2˙–
Chemical Formula: C37H32ClF6NO9S2
Exact Mass:
Molecular Weight: 848.22
Elemental Analysis: C, 52.39; H, 3.80; Cl, 4.18; F, 13.44; N, 1.65; O, 16.98; S, 7.56

Synonym: NIR-O2˙–; NIR O2˙–; NIRO2˙–

IUPAC/Chemical Name: (E)-7-Chloro-9-(2-(ethoxycarbonyl)phenyl)-6-(((trifluoromethyl)sulfonyl)oxy)-4-(2-((E)-1,3,3-trimethylindolin-2-ylidene)ethylidene)-1,2,3,4-tetrahydroxanthylium Triflate


InChi Code: InChI=1S/C36H32ClF3NO6S.CHF3O3S/c1-5-45-34(42)23-13-7-6-12-22(23)32-24-14-10-11-21(17-18-31-35(2,3)26-15-8-9-16-28(26)41(31)4)33(24)46-29-20-30(27(37)19-25(29)32)47-48(43,44)36(38,39)40;2-1(3,4)8(5,6)7/h6-9,12-13,15-20H,5,10-11,14H2,1-4H3;(H,5,6,7)/q+1;/p-1/b21-17+,31-18+;

SMILES Code: CC1(C)/C(N(C)C2=C1C=CC=C2)=C\C=C3CCCC4=C/3[O+]=C5C=C(OS(=O)(C(F)(F)F)=O)C(Cl)=CC5=C4C6=CC=CC=C6C(OCC)=O.O=S([O-])(C(F)(F)F)=O

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:
>3 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: Lv Y, Dan Cheng, Dongdong Su, Chen M, Yin BC, Yuan L, Zhang XB. Visualization of oxidative injury in the mouse kidney using selective superoxide anion fluorescent probes. Chem Sci. 2018 Sep 13;9(39):7606-7613. doi: 10.1039/c8sc03308k. eCollection 2018 Oct 21. PubMed PMID: 30393520; PubMed Central PMCID: PMC6187691.