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

MedKoo CAT#: 200257

CAS#: 1174920-78-5

Description: ANA773 is a Toll-like Receptor 7 (TLR7) agonist prodrug with potential immunostimulating activity. Upon oral administration, ANA773 is metabolized into its active form that binds to and activates TLR7, thereby stimulating dendritic cells (DCs) and enhancing natural killer cell (NK) cytotoxicity. This activation results in the production of proinflammatory cytokines, including interferon alpha, and enhanced antibody-dependent cellular cytotoxicity (ADCC). TLR7 is a member of the TLR family, which plays a fundamental role in pathogen recognition and activation of innate immunity.

Price and Availability




ANA-773, 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

No image available

Theoretical Analysis

MedKoo Cat#: 200257
Name: ANA-773
CAS#: 1174920-78-5
Chemical Formula:
Exact Mass:
Molecular Weight:
Elemental Analysis:

Synonym: ANA773; ANA-773; ANA 773.

IUPAC/Chemical Name: NONE

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:
>5 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).

Harmonized System Code:

Additional Information

ANA773 is an oral prodrug of a small-molecule toll-like receptor (TLR)7 agonist. Preclinical and healthy volunteer clinical studies with ANA773 have demonstrated induction of endogenous interferon-α (IFN-α) of multiple subtypes, which supports the potential utility in the treatment of chronic hepatitis C virus (HCV) infection. ANA773,  currently being developed by Anadys Pharmaceuticals, Inc.


1: Bergmann JF, de Bruijne J, Hotho DM, de Knegt RJ, Boonstra A, Weegink CJ, van Vliet AA, van de Wetering J, Fletcher SP, Bauman LA, Rahimy M, Appleman JR, Freddo JL, Janssen HL, Reesink HW. Randomised clinical trial: anti-viral activity of ANA773, an oral inducer of endogenous interferons acting via TLR7, in chronic  HCV. Aliment Pharmacol Ther. 2011 Aug;34(4):443-53. doi: 10.1111/j.1365-2036.2011.04745.x. Epub 2011 Jun 26. PubMed PMID: 21707679.