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65875

3-Methyl-2-benzothiazolinone hydrazone hydrochloride monohydrate

≥99.0% (HPLC)

Synonym(s):

2-Hydrazono-3-methylbenzothiazoline hydrochloride

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About This Item

Empirical Formula (Hill Notation):
C8H9N3S · HCl · H2O
CAS Number:
Molecular Weight:
233.72
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
238-428-7
Beilstein/REAXYS Number:
4722243
MDL number:
Assay:
≥99.0% (HPLC)
Form:
solid
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Quality Segment

assay

≥99.0% (HPLC)

form

solid

mp

270-274 °C (dec.)

functional group

thioether

SMILES string

O.Cl.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

General description

may contain free HCl

Application

3-Methyl-2-benzothiazolinone hydrazine (MBTH) can be used as a reagent for the spectrophotometric determination of traces of selenium, tellurium, and cyanide in environmental samples.

Other Notes

Reagent for the spectrophotometric determination of aliphatic aldehydes; Reagent for the determination of hexosamines in glycosaminoglycans[1]; Incorporated into a new peroxidase color reaction[2], Reagent for the spectrophotometric determination of traces of selenium (IV) in environmental samples.

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This Item
54880128279C7880
assay

≥99.0% (HPLC)

assay

≥98.0% (HPLC)

assay

97%

assay

≥98% (TLC)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

200

form

solid

form

solid

form

powder

form

powder

mp

270-274 °C (dec.)

mp

137-140 °C, 138-140 °C (lit.)

mp

152-154 °C (lit.)

mp

-

functional group

thioether

functional group

-

functional group

amine, ester, hydrazine

functional group

-


pictograms

Skull and crossbones

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Oral

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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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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