Research chemical
CAS Number: 548-26-5
Structure image is unavailable.
CAS 548-26-5 may require curated coordinates.
Product details
PubChem CID
Not available
Exact Mass
691.67031
InChIKey
Not available
IUPAC Name
disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate
SMILES String
C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].[Na+].[Na+]
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.
Eosin 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.
For laboratory research and professional procurement workflows.
Appearance
Red with a bluish tinge or brownish-red solid; [Merck Index]
Water Solubility
100 mol/L
Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Heavy atom count
31
H-bond acceptors
5
H-bond donors
0
Rotatable bonds
2
Ring count
4
Aromatic rings
2
Topological polar surface area
93.4 Ų
Computed LogP
-0.94
Fragment-like structure rule
No
Lead-like structure rule
No
Drug-like structure rule
No
Structure family
other structure rule
Precious metal motif
No
Transition metal motif
No
Phosphine ligand motif
No
N-heterocycle motif
No
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.
Structural features
Eosin (CAS 548-26-5) is listed in the Advanced Chemicals portfolio, with molecular formula C20H6Br4Na2O5 and molecular weight 691. 90 g/mol.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Intended for research building-block and synthetic chemistry workflows.
Documentation needs
SDS signal word: Warning; hazard codes: H317, H319; For research use only.
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 RequestPurity 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