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Merck
CN

129739

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)
NACRES:
NA.22
PubChem Substance ID:
24847924
UNSPSC Code:
12352100
EC Number:
238-428-7
MDL number:
MFCD00149370
Assay:
97%
Form:
solid

Key Documents

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Product Name

3-Methyl-2-benzothiazolinone hydrazone hydrochloride hydrate, 97%

assay

97%

form

solid

InChI key

IYXXQOGEFHAQGU-GPWRMYTLSA-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-;;

SMILES string

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

mp

276-278 °C (dec.) (lit.)

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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

signalword

Danger

hcodes

H301,H319

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2

Storage Class

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

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKBV6464V
SHBG0081V
MKBN4719V
MKBK6136V
39996EMV

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Bull. Soc. Chim. Belg., 102, 233-233 (1993)
Indian J. Chem. B, 32, 44-44 (1993)
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)
Yang Ge et al.
PloS one, 14(4), e0215834-e0215834 (2019-04-24)
Pear psylla, Cacopsylla chinensis (Yang & Li) are present as two seasonal morphotypes in pear orchards where they, suck phloem sap, defoliate pear trees, and cause fruit russet. Despite the importance of natural enemies in psyllid control, the interactions between
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