SR-717 lithium

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MedKoo CAT#: 555833

CAS#: 2375421-09-1 (lithium)

Description: SR-717 is an agonist of stimulator of interferon genes STING for treating cancer. SR-717 demonstrates broad interspecies and interallelic specificity. SR-717 functions as a direct cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) mimetic that induces the same "closed" conformation of STING. SR-717 displayed antitumor activity; promoted the activation of CD8+ T, natural killer, and dendritic cells in relevant tissues; and facilitated antigen cross-priming. SR-717 also induced the expression of clinically relevant targets, including programmed cell death 1 ligand 1 (PD-L1), in a STING-dependent manner.

Price and Availability

Size Price Shipping out time Quantity
10mg USD 120 2 Weeks
25mg USD 250 2 Weeks
50mg USD 450 2 Weeks
100mg USD 750 2 Weeks
200mg USD 1250 2 Weeks
500mg USD 1950 2 Weeks
1g USD 2950 2 Weeks
2g USD 5250 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-09-30. Prices are subject to change without notice.

SR-717 lithium is in stock.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 555833
Name: SR-717 lithium
CAS#: 2375421-09-1 (lithium)
Chemical Formula: C15H8F2LiN5O3
Exact Mass:
Molecular Weight: 351.1978
Elemental Analysis: C, 51.30; H, 2.30; F, 10.82; Li, 1.98; N, 19.94; O, 13.67

Related CAS #: 2375420-34-9 (free acid)   2375421-09-1 (lithium)    

Synonym: SR-717 lithium; SR 717 lithium; SR717 lithium;

IUPAC/Chemical Name: lithium 2-(6-(1H-imidazol-1-yl)pyridazine-3-carboxamido)-4,5-difluorobenzoate


InChi Code: InChI=1S/C15H9F2N5O3.Li/c16-9-5-8(15(24)25)12(6-10(9)17)19-14(23)11-1-2-13(21-20-11)22-4-3-18-7-22;/h1-7H,(H,19,23)(H,24,25);/q;+1/p-1

SMILES Code: O=C([O-])C1=CC(F)=C(F)C=C1NC(C2=NN=C(N3C=CN=C3)C=C2)=O.[Li+]

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:

Additional Information

Stimulator of interferon genes (STING) links innate immunity to biological processes ranging from antitumor immunity to microbiome homeostasis. Mechanistic understanding of the anticancer potential for STING receptor activation is currently limited by metabolic instability of the natural cyclic dinucleotide (CDN) ligands.


Chin EN, Yu C, Vartabedian VF, Jia Y, Kumar M, Gamo AM, Vernier W, Ali SH, Kissai M, Lazar DC, Nguyen N, Pereira LE, Benish B, Woods AK, Joseph SB, Chu A, Johnson KA, Sander PN, Martínez-Peña F, Hampton EN, Young TS, Wolan DW, Chatterjee AK, Schultz PG, Petrassi HM, Teijaro JR, Lairson LL. Antitumor activity of a systemic STING-activating non-nucleotide cGAMP mimetic. Science. 2020 Aug 21;369(6506):993-999. doi: 10.1126/science.abb4255. PMID: 32820126.