Skip to Content
Merck
All Photos(4)

Key Documents

P4154

Sigma-Aldrich

Polyinosinic acid potassium salt

Homopolymer

Synonym(s):

Poly(I) potassium salt

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

CAS Number:
26936-41-4
MDL number:
MFCD00131982
UNSPSC Code:
41106305
NACRES:
NA.51

biological source

synthetic (organic)

Quality Level

200

Assay

≥98% (TLC)

form

lyophilized powder

solubility

water: 4.80-5.20 mg/mL, clear to hazy, colorless to faintly yellow

storage temp.

−20°C

Looking for similar products? Visit Product Comparison Guide

Application

Polyinosinic acid (Poly(I)) is a homopolymer of inosine that may be used with polycytidylic acid (poly(C)) to form the double-stranded homopolymer (Poly(I) • Poly(C)). TLR3 recognizes double-stranded RNA and is a major effector of the immune response against viral pathogens. (Poly(I) • Poly(C)) is a used as a model RNA to study cell signaling at the level of TLR3. Poly(IC) is a TRIF-dependent toll-like receptor-3 (TLR3) ligand.

Preparation Note

Prepared from IDP using polynucleotide phosphorylase.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Overlapping and distinct roles of GRK5 in TLR2-, and TLR3-induced inflammatory response in vivo.
Packiriswamy N, Parvataneni S, Parameswaran N.
Cellular Immunology, 107-111 (2011)
Xingbo Wang et al.
Veterinary microbiology, 251, 108895-108895 (2020-10-31)
RNA binding ability and cellular distribution are important for nonstructural protein 1 (NS1) of influenza A virus to act as a viral regulatory factor to control virus life cycle. In this study, we identified that the N-terminal residues 19-21 of
Gennady Dvoryanchikov et al.
Nature communications, 8(1), 760-760 (2017-10-04)
Taste buds are innervated by neurons whose cell bodies reside in cranial sensory ganglia. Studies on the functional properties and connectivity of these neurons are hindered by the lack of markers to define their molecular identities and classes. The mouse
Activation of chemokine and inflammatory cytokine response in HCV-infected hepatocytes depends on TLR3 sensing of HCV dsRNA intermediates.
Li K, Li NL, Wei D, Pfeffer SR, et al.
Hepatology, 55(3), 666-675 (2011)
Caiqi Ma et al.
International journal of oncology, 54(2), 572-584 (2018-11-30)
Gastric cancer is one of the most malignant tumor types, and its metastasis is a notable cause of mortality. Among the methods of tumor metastasis, lymphatic metastasis is the predominant one in gastric cancer. A previous study reported that the
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service