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CAS RN: 55321-99-8 | Product Number: H1485


Purity: >98.0%(T)(HPLC)
  • T-1105
2   Contact Us
2   ≥20 

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This product is a sample for RUO (research use only). Do not use this product for any purpose other than testing and research.

Product Number H1485
Purity / Analysis Method >98.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__5H__5N__3O__2 = 139.11  
Physical State (20 deg.C) Solid
CAS RN 55321-99-8
Reaxys Registry Number 908163
PubChem Substance ID 253660706
MDL Number


Appearance White to Almost white powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Neutralization titration) min. 98.0 %
Properties (reference)
Melting Point 261 °C(dec.)
Maximum Absorption Wavelength 348 nm
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
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Transport Information:
HS Number 2933998090
Viral RNA Polymerase Inhibitor


3-Hydroxypyrazine-2-carboxamide (T-1105) is reported as an antiviral compound with broad activity against influenza virus and diverse RNA viruses. Its ribose-5’-triphosphate is the active metabolite, and it is recognized by virus RNA polymerase as a substrate competing with guanosine 5'-triphosphate (GTP), giving inhibition of viral RNA synthesis. For your reference, an antiviral agent favipiravir (T-705) [F1296], is an analog adding the 6-fluoro atom. (The product is for research purpose only.)


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