2-Benzothiazolol

2-Benzothiazolol Basic information
Product Name:2-Benzothiazolol
Synonyms:2(3H)-Benzothiazolone(9CI);2-Hydroxybenzothiazole, HPLC 97%;2-BENZOTHIAZOL;2-hydroxy benzothiazo1e;2-Oxobenzothiazole;3H-1,3-Benzothiazol-2-one;2,3-Dihydrobenzothiazole-2-one;Benzothiazol-2-ol
CAS:934-34-9
MF:C7H5NOS
MW:151.19
EINECS:213-281-1
Product Categories:pharmacetical;BENZOTHIAZOLE
Mol File:934-34-9.mol
2-Benzothiazolol Structure
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
pka10.41±0.20(Predicted)
color White to Off-White
LogP1.760
CAS DataBase Reference934-34-9(CAS DataBase Reference)
NIST Chemistry Reference2-Benzothiazolol (keto form)(934-34-9)
EPA Substance Registry System2(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 Information
ProviderLanguage
2-HydroxybenzothiazoleEnglish
SigmaAldrichEnglish
ACROSEnglish
ALFAEnglish
2-Benzothiazolol Usage And Synthesis
Chemical Propertiesoff-white to light brown crystalline powder
Uses2-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.
DefinitionChEBI: 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 Description2-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 MethodsCrystallise 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 Preparation Products And Raw materials
Raw materialsPHOSGENE–>Nitrobenzene–>Molybdenum disulfide–>S,S-bis(1-phenyl-1H-tetrazol-5-yl) dithiocarbonate–>2-Aminobenzenethiol–>1-Phenyltetrazole-5-thiol–>Carbamic acid, (2-iodophenyl)-, ethyl ester–>2,2′-Diaminodiphenyl disulphide–>Aniline–>carbon monoxide
Preparation Products3-METHYL-2-BENZOTHIAZOLINONE HYDRAZONE HYDROCHLORIDE–>2(3H)-Benzothiazolone,6-acetyl-(9CI)

دیدگاهی بنویسید

نشانی ایمیل شما منتشر نخواهد شد. بخش‌های موردنیاز علامت‌گذاری شده‌اند *