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#: 584106

CAS#: 18771-85-2

Description: Nitrobenzofuroxan, also known as B-2789 and NSC-228079, is a hiv-1 inhibitor and IDO1 inhibitor.

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.

Nitrobenzofuroxan 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#: 584106
Name: Nitrobenzofuroxan
CAS#: 18771-85-2
Chemical Formula: C6H3N3O4
Exact Mass:
Molecular Weight: 181.1
Elemental Analysis: C, 39.79; H, 1.67; N, 23.20; O, 35.34

Synonym: Nitrobenzofuroxan; B-2789; B 2789; B2789; NSC-228079; NSC 228079; NSC228079.

IUPAC/Chemical Name: Benzofurazan, 4-nitro-, 1-oxide


InChi Code: InChI=1S/C6H3N3O4/c10-8(11)4-2-1-3-5-6(4)7-13-9(5)12/h1-3H

SMILES Code: O=[N+](C1=CC=CC2=[N+]([O-])ON=C12)[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:
>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: Korolev SP, Pustovarova MA, Starosotnikov AM, Bastrakov MA, Agapkina YY, Shevelev SA, Gottikh MB. [Nitrobenzofuroxane derivatives as dual action hiv-1 inhibitors]. Biomed Khim. 2016 Nov;62(6):725-728. doi: 10.18097/PBMC20166206725. Russian. PubMed PMID: 28026819.

2: Korolev SP, Kondrashina OV, Druzhilovsky DS, Starosotnikov AM, Dutov MD, Bastrakov MA, Dalinger IL, Filimonov DA, Shevelev SA, Poroikov VV, Agapkina YY, Gottikh MB. Structural-Functional Analysis of 2,1,3-Benzoxadiazoles and Their N-oxides As HIV-1 Integrase Inhibitors. Acta Naturae. 2013 Jan;5(1):63-72. PubMed PMID: 23556131; PubMed Central PMCID: PMC3612826.