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2-Benzothiazolol

2-Benzothiazolol structure

CAS No.: 934-34-9

Chemical Name:: 2-Benzothiazolol

Synonyms: 2-HYDROXYBENZOTHIAZOLE;2(3H)-BENZOTHIAZOLONE;Benzo[d]thiazol-2(3H)-one;BENZOTHIAZOLONE;2-BENZOTHIAZOLINONE;benzo[d]thiazol-2-ol;HYDROXYBENZOTHIAZOLE;2-BENZOTHIAZOL;2-BENZOTHIAZOLOL;Compound Fr16664

CBNumber:: CB7854675

Molecular Formula:: C7H5NOS

Molecular Weight:: 151.19

MDL Number:: MFCD00792539

MOL File:: 934-34-9.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-27 19:03:18

Product description	Number	Pack Size	Price
2-Hydroxybenzothiazole 98%	407607	5g	$48.9
2-Hydroxybenzothiazole 98%	407607	25g	$182
2(3H)-Benzothiazolone >98.0%(GC)	B2344	5g	$36
2(3H)-Benzothiazolone >98.0%(GC)	B2344	25g	$105
2(3H)-Benzothiazolone	B206660	25g	$275
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2-Benzothiazolol 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)
pka	10.41±0.20(Predicted)
form	Solid
color	White to Off-White
InChI	1S/C7H5NOS/c9-7-8-5-3-1-2-4-6(5)10-7/h1-4H,(H,8,9)
InChIKey	YEDUAINPPJYDJZ-UHFFFAOYSA-N
SMILES	Oc1nc2ccccc2s1
LogP	1.760
CAS DataBase Reference	934-34-9(CAS DataBase Reference)
FDA UNII	7T26K7NG46
NIST Chemistry Reference	2-Benzothiazolol (keto form)(934-34-9)
EPA Substance Registry System	2(3H)-Benzothiazolone (934-34-9)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302+H312+H332

Precautionary statements

P261-P264-P280-P301+P312-P302+P352+P312-P304+P340+P312

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

20/21/22

Safety Statements

WGK Germany

TSCA

TSCA listed

HS Code

29061990

Storage Class

11 - Combustible Solids

Hazard Classifications

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

NFPA 704

	1
0		0

2-Benzothiazolol price More Price(28)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	407607	2-Hydroxybenzothiazole 98%	934-34-9	5g	$48.9	2026-04-30	Buy
Sigma-Aldrich	407607	2-Hydroxybenzothiazole 98%	934-34-9	25g	$182	2026-04-30	Buy
TCI Chemical	B2344	2(3H)-Benzothiazolone >98.0%(GC)	934-34-9	5g	$36	2026-04-30	Buy
TCI Chemical	B2344	2(3H)-Benzothiazolone >98.0%(GC)	934-34-9	25g	$105	2026-04-30	Buy
TRC	B206660	2(3H)-Benzothiazolone	934-34-9	25g	$275	2021-12-16	Buy

Product number	Packaging	Price	Buy
407607	5g	$48.9	Buy
407607	25g	$182	Buy
B2344	5g	$36	Buy
B2344	25g	$105	Buy
B206660	25g	$275	Buy

2-Benzothiazolol Chemical Properties,Uses,Production

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 synthesis

Synthesis of 2-Benzothiazolol from 2-Aminobenzenethiol

2-Benzothiazolol Preparation Products And Raw materials

Raw materials

Molybdenum disulfide PHOSGENE Nitrobenzene 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

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Preparation Products

3-METHYL-2-BENZOTHIAZOLINONE HYDRAZONE HYDROCHLORIDE 2(3H)-Benzothiazolone,6-acetyl-(9CI)

2-Benzothiazolol Suppliers

Global( 269)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29640	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29819	58
Nanjing Dolon Biotechnology Co.,Ltd.	18905173768	52513593@qq.com	CHINA	2972	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
Wuhan Chemwish Technology Co., Ltd	027-67849912	sales@chemwish.com	CHINA	10821	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	9545	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Nanjing Dolon Biotechnology Co.,Ltd.	58
Alchem Pharmtech,Inc.	58
Wuhan Chemwish Technology Co., Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
Zhengzhou Alfa Chemical Co.,Ltd	58
SIMAGCHEM CORP	58

View Lastest Price from 2-Benzothiazolol manufacturers

Update time	Product	Price	Purity	Supply Ability	Manufacturer
2026-04-27	Benzothiazolone 934-34-9	US $0.00 / removed	≥98%	10g	TargetMol Chemicals Inc.
2026-04-27	Benzothiazolone 934-34-9	US $0.00 / removed	≥98%	10g	TargetMol Chemicals Inc.
2025-07-21	Benzothiazolone 934-34-9	US $30.00 / mg	≥98%	10g	TargetMol Chemicals Inc.

Benzothiazolone
934-34-9
US $0.00 / removed
≥98%
TargetMol Chemicals Inc.

Benzothiazolone
934-34-9
US $0.00 / removed
≥98%
TargetMol Chemicals Inc.

Benzothiazolone
934-34-9
US $30.00 / mg
≥98%
TargetMol Chemicals Inc.

2-Benzothiazolol Spectrum

2-Benzothiazolol(934-34-9)MS 2-Benzothiazolol(934-34-9)¹HNMR 2-Benzothiazolol(934-34-9)¹³CNMR 2-Benzothiazolol(934-34-9)IR1 2-Benzothiazolol(934-34-9)IR2 2-Benzothiazolol(934-34-9)Raman

934-34-9(2-Benzothiazolol)Related Search:

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)

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2(3H)-Benzothiazolone(9CI) 2-Hydroxybenzothiazole, HPLC 97% 2-BENZOTHIAZOL 2-hydroxy benzothiazo1e Benzo[d]thiazol-2(3H)-one 2-Hydroxy-1,3-benzothiazole 98% 2-Oxobenzothiazole 3H-1,3-Benzothiazol-2-one 2,3-Dihydrobenzothiazole-2-one Benzothiazol-2-ol 2-Benzothiazolol,95% 2-Hydroxy-1,3-benzothiazole 2,3-dihydro-1,3-benzothiazol-2-one 2-Benzothiazolol 2-Hydroxybenzothiazole benzo[d]thiazol-2-ol 2-Hydroxybenzthiazole 2(3H)-Benzothiazolone 3H-BENZOTHIAZOL-2-ONE 1,3-BENZOTHIAZOL-2-OL 2(3H)-BENZOTHIAZOLONE 2-HYDROXYBENZOTHIAZOL 2-HYDROXYBENZOTHIAZOLE 2-BENZOTHIAZOLINONE 2-BENZOTHIAZOLOL IFLAB-BB F0918-5160 BENZOTHIAZOLONE 1,3-Benzothiazol-2(3H)-one 2-Benzothiazolone Benzothiazol, 2-hydroxy- Carbamothioic acid, (2-mercatophenyl)-, gamma-lactone TIMTEC-BB SBB005792 benzothiazol-2(3H)-one 2-Hydroxybenzothiazole,98% HYDROXYBENZOTHIAZOLE 2(3H)-Benzothiazolone > Benziothiazolinone-d4 Rosuvastatin Impurity 141 Compound Fr16664 benzothiazolinone 2(3H)-Benzothiazolone in methanol 2-hydroxybenzenebenzothiazole Dotinurad Impurity 138 934-34-9 Thiazoles Heterocyclic Building Blocks Building Blocks pharmacetical BENZOTHIAZOLE