2-Benzothiazolol Chemical Properties

Melting point:

137-140 °C (lit.)

Boiling point:

360°C (rough estimate)

Density 

1.2170 (rough estimate)

refractive index 

1.5500 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly, Sonicated), DMSO (Slightly)

form 

Solid

pka

10.41±0.20(Predicted)

color 

White to Off-White

LogP

1.760

CAS DataBase Reference

934-34-9(CAS DataBase Reference)

NIST Chemistry Reference

2-Benzothiazolol (keto form)(934-34-9)

EPA Substance Registry System

2(3H)-Benzothiazolone (934-34-9)

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/21/22

Safety Statements 

36

WGK Germany 

3

TSCA 

Yes

HS Code 

29061990

MSDS

• Language:English Provider:2-Hydroxybenzothiazole
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-Benzothiazolol Usage And Synthesis

Chemical Properties

off-white to light brown crystalline powder

Uses

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.

Definition

ChEBI: Benzothiazole substituted with a hydroxy group at the 2-position.

Synthesis Reference(s)

Journal of the American Chemical Society, 72, p. 4890, 1950 DOI: 10.1021/ja01167a011

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.

Purification Methods

Crystallise it from aqueous EtOH or water. [Hoggarth J Chem Soc 3314 1949, Hunter J Chem Soc 135 1930, Beilstein 27 H 182, 27 I 270, 27 II 225, 27 III/IV 2693.]

2-Benzothiazolol(934-34-9)Related Product Information

• HYDROXYAPATITE TYPE I
• 2,2'-Dithiobis(benzothiazole)
• 2-Hydroxypyridine
• Glycolic acid
• 2,3,4-Trihydroxybenzoic acid
• Hydroxy silicone oil
• 2-Mercaptobenzothiazole
• Benzothiazole
• 2-Benzothiazolecarboxamide(6CI,8CI,9CI)
• 2-Benzothiazolecarbonitrile(7CI,8CI,9CI)
• Benazolin
• Mefenacet
• 5-CHLORO-2-BENZOTHIAZOLINONE
• MAEM
• 2-HYDROXY-4-METHYL-BENZOTHIOZOLE
• D-Luciferin potassium salt
• D-Luciferin sodium salt
• 5-Benzothiazolol,2-methyl-(6CI,9CI)