• Name

  Benzaldehyde-2,4-disulfonic acid

• EINECS 201-826-6
• CAS No. 88-39-1
• Article Data4
• CAS DataBase
• Density 1.815 g/cm³
• Solubility
• Melting Point 105-107°C
• Formula C7H6 O7 S2
• Boiling Point
• Molecular Weight 266.252
• Flash Point
• Transport Information
• Appearance White crystal powder
• Safety
• Risk Codes
• Molecular Structure
• Hazard Symbols Xi
• Synonyms m-Benzenedisulfonicacid, 4-formyl- (6CI,7CI,8CI); 2,4-Disulfobenzaldehyde;4-Formyl-1,3-benzenedisulfonic acid; Benzaldehyde-2,4-disulfonic acid
• PSA 142.57000
• LogP 2.15410

Synthetic route

121-04-0

toluene-2,4-disulfonic acid

88-39-1

4-formyl-1,3-benzenedisulfonic acid

Conditions

Conditions	Yield
With manganese(IV) oxide; sulfuric acid at 30 - 120℃; Darst.;
With manganese(IV) oxide; sulfuric acid

874-42-0

2,4-dichlorobenzaldeyhde

88-39-1

4-formyl-1,3-benzenedisulfonic acid

Conditions

Conditions	Yield
With sodium sulfite

874-42-0

2,4-dichlorobenzaldeyhde

alkali sulfite

alkali sulfite

88-39-1

4-formyl-1,3-benzenedisulfonic acid

Conditions

Conditions	Yield
in geschlossenem Gefaess;

16649-50-6

N-tert-Butylhydroxylamine

88-39-1

4-formyl-1,3-benzenedisulfonic acid

2,4-disulfonylphenyl N-tert-butyl nitrone

Conditions

Conditions	Yield
In methanol Reflux; Inert atmosphere;	75%

575-44-0

1,6-dihydroxynaphthalene

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C27H16O9S2

Conditions

Conditions	Yield
In phosphoric acid at 125℃; for 2h;	52%

potassium cyanide

88-39-1

4-formyl-1,3-benzenedisulfonic acid

506-87-6

ammonium carbonate

1318796-76-7

C9H8N2O8S2

Conditions

Conditions	Yield
In methanol; water at 50 - 60℃; for 3h; Bucherer-Bergs reaction;	35%

...Expand

88-39-1

4-formyl-1,3-benzenedisulfonic acid

108-46-3

recorcinol

C19H12O9S2

Conditions

Conditions	Yield
In phosphoric acid at 125℃; for 2h;	22%

95813-45-9

4-hydroxy-2,2'-diphenyl-4,5-dihydro-[4,5']bithiazolyl-4'-one

88-39-1

4-formyl-1,3-benzenedisulfonic acid

4-(4-oxo-2-phenyl-4H-thiazol-5-ylidenemethyl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With water

88-39-1

4-formyl-1,3-benzenedisulfonic acid

91-66-7

N,N-diethylaniline

21016-37-5

4-(4,4'-bis-diethylamino-benzhydryl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With sulfuric acid

88-39-1

4-formyl-1,3-benzenedisulfonic acid

91-68-9

3-diethylaminophenol

4-(3,6-bis-diethylamino-9-hydroxy-xanthen-9-yl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With sulfuric acid Erhitzen des Reaktionsprodukts mit konz. Schwefelsaeure auf 100grad und Oxydieren des Reaktionsprodukts mit Eisenchlorid in verd. Schwefelsaeure bei 80grad;

622-33-3

N-benzyloxyamine

88-39-1

4-formyl-1,3-benzenedisulfonic acid

4-(benzyloxyimino-methyl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

4-aminooxy-benzaldehyde O-benzyl-oxime

4-{[4-(benzyloxyimino-methyl)-phenoxyimino]-methyl}-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C21H19N3O3

4-[(3-{[3-(benzyloxyimino-methyl)-phenoxyimino]-methyl}-phenoxyimino)-methyl]-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C21H19N3O3

4-[(3-{[4-(benzyloxyimino-methyl)-phenoxyimino]-methyl}-phenoxyimino)-methyl]-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C22H20N4O5

4-[(4-{[4-(benzyloxyimino-methyl)-2-nitro-phenoxyimino]-methyl}-2-methyl-phenoxyimino)-methyl]-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C28H24N4O4

4-({3-[(3-{[3-(benzyloxyimino-methyl)-phenoxyimino]-methyl}-phenoxyimino)-methyl]-phenoxyimino}-methyl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C28H24N4O4

4-({3-[(4-{[3-(benzyloxyimino-methyl)-phenoxyimino]-methyl}-phenoxyimino)-methyl]-phenoxyimino}-methyl)-benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In ethyl acetate

88-39-1

4-formyl-1,3-benzenedisulfonic acid

144822-86-6

7-(aminooxy)-2H-chromen-2-one

714215-08-4

4-((E)-{[(2-oxo-2H-chromen-7-yl)oxy]imino}methyl)benzene-1,3-disulfonic acid

Conditions

Conditions	Yield
With acetic acid In water	147 mg

88-39-1

4-formyl-1,3-benzenedisulfonic acid

119-26-6

(2,4-dinitro-phenyl)-hydrazine

771450-78-3

C13H10N4O10S2

Conditions

Conditions	Yield
With borate buffer; cetylpyridinium chloride pH=13;

37043-80-4

N-(p-nitrobenzyl)-N-ethylaniline

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C37H36N4O10S2

Conditions

Conditions	Yield
With methanesulfonic acid In water
With methanesulfonic acid In water

37043-80-4

N-(p-nitrobenzyl)-N-ethylaniline

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C37H33N4O10S2(1-)*Li(1+)

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1.1: methanesulfonic acid / water 2.1: ammonium thiosulphate 2.2: Neutral conditions View Scheme

37043-80-4

N-(p-nitrobenzyl)-N-ethylaniline

88-39-1

4-formyl-1,3-benzenedisulfonic acid

C37H33N4O10S2(1-)*Na(1+)

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: methanesulfonic acid / water 2: ammonium thiosulfate; sodium hydroxide / water View Scheme

Benzaldehyde-2,4-disulfonic acid Chemical Properties

The MF of Benzaldehyde-2,4-disulfonic acid(88-39-1): C₇H₆O₇S₂
The MW of Benzaldehyde-2,4-disulfonic acid(88-39-1): 266.25
EINECS: 201-826-6
Density: 1.815 g/cm³ 
Index of Refraction: 1.633 
Categories: Intermediates of Dyes and Pigments
Combustion Products: Fire will produce irritating, corrosive and/or toxic gases.
Synonyms: BENZALDEHYDE-2,4-DISULFONIC ACID;2,4-Disulfonicacidbenzaldehyde;3-Benzenedisulfonicacid,4-formyl-1;4-Formyl-1,3-disulfonicacid;4-formyl-3-benzenedisulfonicacid;4-formylbenzene-1,3-disulphonicacid;4-Formylbenzene-1,3-Disulfonic Acid;Benzaldehyde-2,4-Disulfonic Acid (sodium salt)(hydrate)
The Structure of Benzaldehyde-2,4-disulfonic acid(88-39-1):

Benzaldehyde-2,4-disulfonic acid Safety Profile

Benzaldehyde-2,4-disulfonic acid Specification