| Identification | Back Directory | [Name]
P-TOLUENESULFINIC ACID | [CAS]
536-57-2 | [Synonyms]
toluenesulfinicacid
P-TOLUENESULFINIC ACID
4-TOLUENESULFINIC ACID
P-TOLUENESULPHINIC ACID
toluene-4-sulphinicacid
4-methyl-Benzenesulfinicacid
Benzenesulfinic acid,4-methyl- | [EINECS(EC#)]
208-638-3 | [Molecular Formula]
C7H8O2S | [MDL Number]
MFCD00058979 | [MOL File]
536-57-2.mol | [Molecular Weight]
156.2 |
| Chemical Properties | Back Directory | [Melting point ]
85° | [Boiling point ]
250.45°C (rough estimate) | [density ]
1.2474 (rough estimate) | [refractive index ]
1.5248 (estimate) | [storage temp. ]
Inert atmosphere,Store in freezer, under -20°C | [pka]
pK1:1.7 (25°C) | [Appearance]
White to off-white Solid | [InChI]
InChI=1S/C7H8O2S/c1-6-2-4-7(5-3-6)10(8)9/h2-5H,1H3,(H,8,9) | [InChIKey]
FXJVNINSOKCNJP-UHFFFAOYSA-N | [SMILES]
C1(S(O)=O)=CC=C(C)C=C1 | [EPA Substance Registry System]
Benzenesulfinic acid, 4-methyl- (536-57-2) |
| Hazard Information | Back Directory | [Uses]
p-toluenesulfinic acid is used in preparation of alkyl, vinyl, and allyl sulfones; starting material for the preparation of chiral sulfoxides; mild acid catalyst.
| [Synthesis Reference(s)]
Chemical and Pharmaceutical Bulletin, 35, p. 1770, 1987 DOI: 10.1248/cpb.35.1770 | [Synthesis]
p-toluenesulfinic acid is prepared by isolation of the free acid via acidification of an aqueous solution of the sodium salt has been described; partial conversion to p-Toluenesulfonic Acid frequently accompanies drying of the free acid. | [storage]
It should be stored in a cool, dry place away from strong oxidizing agents. |
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