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230901

Sigma-Aldrich

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate

97%

Synonym(s):

Benzaldehyde 2,4-disulfonic acid disodium salt, Sodium 4-formylbenzene-1,3-disulfonate

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About This Item

Linear Formula:
HCOC6H3(SO3Na)2 · xH2O
CAS Number:
Molecular Weight:
310.21 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

Quality Level

Assay

97%

form

powder, crystals or chunks

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

O.[Na+].[Na+].[O-]S(=O)(=O)c1ccc(C=O)c(c1)S([O-])(=O)=O

InChI

1S/C7H6O7S2.2Na.H2O/c8-4-5-1-2-6(15(9,10)11)3-7(5)16(12,13)14;;;/h1-4H,(H,9,10,11)(H,12,13,14);;;1H2/q;2*+1;/p-2

InChI key

YKJQVLWZGODFIH-UHFFFAOYSA-L

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General description

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate is used in the synthesis of polymer electrolyte membranes, which forms a crucial component of electrochemical devices.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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’.

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Preparation and Characterization of an Eco-Friendly Polymer Electrolyte Membrane (PEM) Based in a Blend of Sulphonated Poly (Vinyl Alcohol)/Chitosan Mechanically Stabilised by Nylon 6, 6
Oliveira PN, et al.
Materials Research, 19(4), 954-962 (2016)

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