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129739

Sigma-Aldrich

3-Methyl-2-benzothiazolinone hydrazone hydrochloride hydrate

97%

Synonym(s):

MBTH hydrochloride hydrate

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About This Item

Empirical Formula (Hill Notation):
C8H9N3S · HCl · xH2O
CAS Number:
149022-15-1
Molecular Weight:
215.70 (anhydrous basis)
EC Number:
238-428-7
MDL number:
MFCD00149370
UNSPSC Code:
12352100
PubChem Substance ID:
24847924
NACRES:
NA.22

Assay

97%

form

solid

mp

276-278 °C (dec.) (lit.)

SMILES string

Cl[H].[H]O[H].CN1\C(Sc2ccccc12)=N\N

InChI

1S/C8H9N3S.ClH.H2O/c1-11-6-4-2-3-5-7(6)12-8(11)10-9;;/h2-5H,9H2,1H3;1H;1H2/b10-8-;;

InChI key

IYXXQOGEFHAQGU-GPWRMYTLSA-N

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Application

3-Methyl-2-benzothiazolinone hydrazone hydrochloride hydrate (MBTH hydrochloride hydrate) was used as an electrophilic coupling reagent for the determination of residual chlorine.
Chromogenic reagent for the determination of benzodiazepines, cholesterol, and enzyme activity. Used in the synthesis of benzothiazolium azo dyes.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301,H319

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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J N Rodríguez-López et al.
Analytical biochemistry, 216(1), 205-212 (1994-01-01)
A continuous spectrophotometric method for the rapid determination of monophenolase activity of tyrosinase is described. This method is based on the coupling reaction between 3-methyl-2-benzothiazolinone hydrazone (MBTH) and the quinone products of the oxidation of various monophenols in the presence
Dyes and Pigments, 21, 159-159 (1993)
Indian J. Chem. B, 32, 44-44 (1993)
Bull. Soc. Chim. Belg., 102, 233-233 (1993)
Beverly Catchot et al.
Pest management science, 76(12), 4057-4063 (2020-06-17)
The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), has emerged as a major pest of cotton, Gossypium hirsutum L, in the mid-southern USA. In the early 1990s L. lineolaris populations developed resistance to several classes of conventional insecticides, increasing
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