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Sigma-Aldrich

1,2-Benzisothiazol-3(2H)-one

97%

Synonym(s):

1,2-Benzisothiazolone, 1,2-Benzoisothiazol-3-one, 1,2-benzothiazoline-3-one, 2,3-Dihydro-1,2-benzothiazol-3-one, 3-Hydroxy-1,2-benzisothiazole, Benzisothiazolin-3-one

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About This Item

Empirical Formula (Hill Notation):
C7H5NOS
CAS Number:
2634-33-5
Molecular Weight:
151.19
EC Number:
220-120-9
MDL number:
MFCD00127753
UNSPSC Code:
12352100
PubChem Substance ID:
24879952
NACRES:
NA.22

Quality Level

100

assay

97%

form

solid

mp

154-158 °C (lit.)

SMILES string

Oc1nsc2ccccc12

InChI

1S/C7H5NOS/c9-7-5-3-1-2-4-6(5)10-8-7/h1-4H,(H,8,9)

InChI key

DMSMPAJRVJJAGA-UHFFFAOYSA-N

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General description

1,2-Benzisothiazol-3(2H)-one can be synthesized by reacting 2-mercaptobenzoic acid with diphenyl phosphoryl azide.

Disclaimer

The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, 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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Convenient Synthesis of 1, 2-Benzisothiazol-3 (2H)-ones by Cyclization Reaction
of Acyl Azide
Chiyoda T, et al.
Synlett, 2000(10), 1427-1428 (2000)
Mateo Alajarin et al.
The Journal of organic chemistry, 75(11), 3737-3750 (2010-05-14)
Under thermal activation in solution, N-[2-(1,3-oxathiolan-2-yl)]phenyl ketenimines and carbodiimides were converted into 2,1-benzisothiazol-3-ones bearing a pendant N-styryl or imidoyl fragment, respectively. These processes should occur with the concomitant formation of ethylene as result of the fragmentation of the 1,3-oxathiolane ring.
D L Greenway et al.
Letters in applied microbiology, 29(5), 298-302 (2000-02-09)
The effect of a commonly used biocide, 1,2-benzisothiazolin-3-one (BIT) on ppGpp accumulation in the pathogen, Pseudomonas aeruginosa PAO1, and an environmental isolate, Ps. fluorescens, was examined. It is concluded that BIT is able to induce a stringent response in Ps.
Pulpitis of the fingers from a shoe glue containing 1,2-benzisothiazolin-3-one (BIT).
M Ayadi et al.
Contact dermatitis, 40(2), 115-116 (1999-02-27)
D A Basketter et al.
Contact dermatitis, 40(3), 150-154 (1999-03-12)
Many of the chemicals in common use possess, to some degree, a capacity to cause skin sensitization. Consequently, it is important to conduct a thorough and accurate risk assessment when it can be anticipated that such chemicals are likely to
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