Skip to Content
Merck
All Photos(2)

Documents

407607

Sigma-Aldrich

2-Hydroxybenzothiazole

98%

Synonym(s):

2(3H)-Benzothiazolone

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C7H5NOS
CAS Number:
Molecular Weight:
151.19
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

mp

137-140 °C (lit.)

SMILES string

Oc1nc2ccccc2s1

InChI

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

InChI key

YEDUAINPPJYDJZ-UHFFFAOYSA-N

General description

2-Hydroxybenzothiazole (2-OHBT) is a 2-substituted benzothiazole. It is a tautomer of 2-benzothiazolinone. Its enthalpy of formation in the gas phase has been determined using high-level ab initio molecular orbital calculations at the G3(MP2)//B3LYP level of theory. Polarized IR spectra of the hydrogen-bonded molecular crystals of 2-OHBT have been studied. Oxidation of 2-OHBT using H2O2/UV and iron(III) photoassisted Fenton techniques have been reported. 2-OHBT is released into wastewaters during the industrial production of 2-mercaptobenzothiazole, a rubber vulcanization accelerator. The anodic oxidation of 2-OHBT on copper, iron and platinum in alcohol and alcohol-water solutions by cyclic polarization and chronoamperometry has been reported.

Application

2-Hydroxybenzothiazole may be employed as carbon, nitrogen and energy supplement in the bacterial cultures. It may be used in the preparation of insulating thin polymer (<0.1μm), via electropolymerization.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Georgia Gatidou et al.
Chemosphere, 241, 125071-125071 (2019-11-07)
The ready biodegradability of twenty food additives, belonging to the classes of artificial sweeteners, natural sweeteners, preservatives and colorings, was investigated using activated sludge as inoculum and OECD 301F respirometric test. According to the results, saccharin, aspartame, sodium cyclamate, xylitol
Oxidation of benzothiazole, 2-mercaptobenzothiazole and 2-hydroxybenzothiazole in aqueous solution by means of H2O2/UV or photoassisted Fenton systems.
Andreozzi R, et al.
Journal of Chemical Technology and Biotechnology, 76(2), 196-202 (2001)
Microbial transformations of 2-substituted benzothiazoles.
De Wever HPB and Verachtert H.
Applied Microbiology and Biotechnology, 57(5-6), 620-625 (2001)
Isolation and characterization of Rhodococcus rhodochrous for the degradation of the wastewater component 2-hydroxybenzothiazole.
De Wever H, et al.
Applied Microbiology and Biotechnology, 47(4), 458-461 (1997)
Ping Jiang et al.
Water research, 188, 116542-116542 (2020-11-01)
Comprehensive identification of byproducts including intermediate transformation products (TPs) of micropollutants in source water is challenging and paramount for assessment of drinking water quality and treatment technologies. Here, we have developed a nontargeted analysis strategy coupled with computational toxicity assessment

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service