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121-04-0

121-04-0 Structure

121-04-0 Structure
IdentificationBack Directory
[Name]

Toluol-2,4-disulfonsure
[CAS]

121-04-0
[Synonyms]

toluene-2,4-disulphonic acid
4-Methyl-1,3-benzenedisulfonic acid
4-METHYLBENZENE-1,3-DISULFONIC ACID
1,3-Benzenedisulfonic acid, 4-methyl-
[EINECS(EC#)]

204-446-9
[Molecular Formula]

C7H8O6S2
[MOL File]

121-04-0.mol
[Molecular Weight]

252.26
Chemical PropertiesBack Directory
[Melting point ]

295-297 °C
[density ]

1.667±0.06 g/cm3(Predicted)
[pka]

-1.06±0.45(Predicted)
[EPA Substance Registry System]

1,3-Benzenedisulfonic acid, 4-methyl- (121-04-0)
Safety DataBack Directory
[TSCA ]

TSCA listed
[HS Code ]

2904100000
Hazard InformationBack Directory
[Uses]

Used in the manufacture of 4-formyl-1,3-benzenedisulfonic acid, 4-car- boxy-1,3-benzenedisulfonic acid, and 4-methyl-resorcinol.
[Production Methods]

Toluol-2,4-disulfonsure is obtained by additional sulfonation of the o- and p-toluenesulfonic acid mixture with 66% oleum at 125 ℃.
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