Research chemical
CAS Number: 259793-96-9
Product details
For laboratory research and professional procurement workflows.
PubChem CID
492405
Exact Mass
157.028755
InChIKey
ZCGNOVWYSGBHAU-UHFFFAOYSA-N
IUPAC Name
5-fluoro-2-oxo-1H-pyrazine-3-carboxamide
SMILES String
C1=C(N=C(C(=O)N1)C(=O)N)F
Water Solubility
slightly soluble in water
pKa
5.1
XLogP
-0.6
Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Heavy atom count
11
H-bond acceptors
5
H-bond donors
3
Rotatable bonds
1
Ring count
1
Aromatic rings
1
Topological polar surface area
88.84 Ų
Computed LogP
-0.99
Structural features
Favipiravir (CAS 259793-96-9) is listed in the Pharmaceutical Intermediates portfolio, with molecular formula C5H4FN3O2 and molecular weight 157. 10 g/mol.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Intended for research-stage medicinal chemistry and intermediate synthesis workflows; structure-derived tags include nitrogen-containing heterocycle.
Documentation needs
SDS signal word: Warning; hazard codes: H302, H315, H319, H332, H335; For research use only.
ChEMBL reports experimental activity evidence for: Alpha-1A adrenergic receptor (Homo sapiens) — 2 assays; Muscarinic acetylcholine receptor M1 (Homo sapiens) — 2 assays; Prostaglandin G/H synthase 1 (Homo sapiens) — 2 assays; Protein deacetylase HDAC6 (Homo sapiens) — 2 assays; Thromboxane A2 receptor (Homo sapiens) — 2 assays. These records describe research assays and do not establish therapeutic efficacy or clinical use.
Catalog navigation
Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.
Procurement notes
MolGraph uses public price and availability evidence as a starting point, then confirms current stock, quotation, COA/SDS, lot specification, lead time, and shipment documentation before final acceptance.
Use the quote panel for visible public options. Additional quantities or specifications can be reviewed by RFQ.
Purity, lot identity, and batch-specific documentation are confirmed before procurement decisions.
Supplier-issued COA and SDS can be requested before handling, storage, shipment, or procurement decisions.
Final quote depends on quantity, lead time, destination, and supplier confirmation.
Favipiravir is listed as in-stock / available for research-use sourcing review. Final availability, lot specification, and lead time are confirmed by RFQ.
The page shows a public reference price in the quote panel. Submit an RFQ to confirm current price, quantity breaks, lead time, and destination-specific shipping requirements.
Yes. Supplier-issued COA and SDS can be requested during the RFQ workflow. Lot-specific documents depend on supplier and batch confirmation.
Fragment-like structure rule
Yes
Lead-like structure rule
Yes
Drug-like structure rule
Yes
Structure family
n heterocycle ligand
Precious metal motif
No
Transition metal motif
No
Phosphine ligand motif
No
N-heterocycle motif
Yes
Boronic acid motif
No
Computed structure descriptors generated from molecular structure. These are not experimental physical property values, supplier specifications, SDS data, or bioactivity claims.
Alpha-1A adrenergic receptor
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Muscarinic acetylcholine receptor M1
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Prostaglandin G/H synthase 1
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Protein deacetylase HDAC6
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Thromboxane A2 receptor
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.
Preliminary Safety Reference
For supplier-issued SDS or COA, submit a documentation request.
Safety Reference / SDS RequestSignal word: Warning
Supplier SDS reference cue; confirm supplier documentation before use.
Hazard statements: H302, H315, H319, H332, H335
Supplier SDS hazard code reference; confirm full text in supplier documentation.
Precautionary statements: P261, P280, P305+P351+P338
Supplier SDS precautionary code reference; confirm full text in supplier documentation.
Shipment review: Required
Certificate of Analysis (COA): By request
Supplier Safety Data Sheet (SDS): By request
Purity and pack size confirmation: By request
Availability and lead time review: Confirmed by RFQ
Shipment documentation review: By request
For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference
Additional text reference cues are not available for this catalog entry.
Non-public references are shown as text only and do not imply equivalence, availability, or shared use.