4-Formylbenzene-1,3-disulphonic acid disodium salt hydrate 97%, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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Synonyms: Sodium 4-formylbenzene-1,3-disulphonate, Benzaldehyde 2,4-disulphonic acid disodium salt

M-Clarity™ quality level = MQ200

230901-10G 230901-50G
230901-10GEA 143 EUR
230901-10G 230901-50G
4-Formylbenzene-1,3-disulphonic acid disodium salt hydrate 97%, Sigma-Aldrich®
4-Formylbenzene-1,3-disulphonic acid disodium salt hydrate

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate,97% (Benzaldehyde 2,4-disulfonic acid disodium salt; Sodium 4-formylbenzene-1,3-disulfonate).


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.

Formula: C₇H₄Na₂O₇S₂
Storage Temperature: RT
MDL Number: MFCD00150711
CAS Number: 207291-88-1
EINECS: 251-551-0

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Specification Test Results

Appearance (Colour) White to Yellow
Appearance (Form): Powder, Crystals, Crystalline Powder and/or Chunks Conforms to Requirements
Infrared spectrum Conforms to Structure
Water (by Karl Fischer) Typically 2 - 16%
Purity (HPLC) ≥96.5%

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