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217077

Sigma-Aldrich

6-Hydroxy-1,3-benzoxathiol-2-one

≥98%

Synonym(s):

Tioxolone

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About This Item

Empirical Formula (Hill Notation):
C7H4O3S
CAS Number:
4991-65-5
Molecular Weight:
168.17
EC Number:
225-653-0
MDL number:
MFCD00005859
UNSPSC Code:
12352100
PubChem Substance ID:
24852991
NACRES:
NA.22

Assay

≥98%

mp

158-160 °C (lit.)

solubility

95% ethanol: soluble 50 mg/mL, clear to very slightly hazy, colorless to yellow
benzene: soluble
diethyl ether: soluble
isopropanol: soluble
propylene glycol: soluble
toluene: soluble
water: insoluble

SMILES string

Oc1ccc2SC(=O)Oc2c1

InChI

1S/C7H4O3S/c8-4-1-2-6-5(3-4)10-7(9)11-6/h1-3,8H

InChI key

SLYPOVJCSQHITR-UHFFFAOYSA-N

General description

Antimicrobial and cytostatic properties of 6-hydroxy-1,3-benzoxathiol-2-one has been investigated. Supramolecular structure of 6-hydroxy-1,3-benzoxathiol-2-one has been studied.

Application

6-Hydroxy-1,3-benzoxathiol-2-one was used in the synthesis of heterocycle-phosphor esters having potential antimicrobial activity.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - 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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Alessio Innocenti et al.
Bioorganic & medicinal chemistry letters, 18(14), 3938-3941 (2008-06-24)
Inhibition of 13 mammalian isoforms of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1), CA I-XV, with thioxolone (6-hydroxy-1,3-benzoxathiol-2-one) and two sulfonamides was investigated. Thioxolone was inefficient for generating isozyme-selective inhibitors, since except for CA I which is inhibited in the
Maureen Byres et al.
Acta crystallographica. Section C, Crystal structure communications, 60(Pt 6), o395-o396 (2004-06-05)
The planar molecules of 6-hydroxy-1,3-benzoxathiol-2-one, C(7)H(4)O(3)S, are linked by extensive O-H.O and C-H.O hydrogen bonding and are further stablilized by face-to-face pi-pi interactions.
Contact dermatitis from thioxolone.
F Villas Martinez et al.
Contact dermatitis, 29(2), 96-96 (1993-08-01)
Facile regioselective synthesis and antimicrobial activity of heterocycle-phosphor esters.
Abdou WM, et al.
Monatshefte fur Chemie / Chemical Monthly, 145(4), 675-682 (2014)
Contact dermatitis to thioxolone.
H Näher et al.
Contact dermatitis, 17(4), 250-251 (1987-10-01)
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