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194832

Sigma-Aldrich

Dithizone

ACS reagent, ≥85.0%

Synonim(y):

Diphenylthiocarbazone

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About This Item

Wzór liniowy:
C6H5NHNHCSN=NC6H5
Numer CAS:
60-10-6
Masa cząsteczkowa:
256.33
Beilstein:
748838
Numer WE:
200-454-1
Numer MDL:
MFCD00003025
Kod UNSPSC:
12352100
Identyfikator substancji w PubChem:
24851336

klasa czystości

ACS reagent

Próba

≥85.0%

pozostałość po prażeniu

≤0.3%

mp

168 °C (dec.) (lit.)

ślady kationów

heavy metals: ≤0.002%

stosunek absorbancji

A ≥1.55

ciąg SMILES

S=C(NNc1ccccc1)\N=N\c2ccccc2

InChI

1S/C13H12N4S/c18-13(16-14-11-7-3-1-4-8-11)17-15-12-9-5-2-6-10-12/h1-10,14H,(H,16,18)/b17-15+

Klucz InChI

UOFGSWVZMUXXIY-BMRADRMJSA-N

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Opis ogólny

Dithizone (Diphenylthiocarbazone) is used as chelating agent for zinc.[1] It is widely used for the liquid-liquid and solid phase extraction of various metals since it forms stable complexes with the metals.[2]

Zastosowanie

Dithizone (Diphenylthiocarbazone) may be used in the following studies:
  • In the cloud point preconcentration step, before the trace level quantification of silver by flame atomic absorption spectrometry.[2]
  • Preparation of hexadecyltrimethyl ammonium bromide (CTAB) capped gold nanoparticles (AuNPs). This reagent was useful for the colorimetric detection of heavy metal ions.[3]
  • As a zinc chelating ligand for the extraction of zinc in bovine serum.[4]
Dithizone has been used in the preparation of dithizone stain solution for pancreatic islet cells.[5]
Indicator for metals.[6]
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Piktogramy

Exclamation mark
GHS07

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

H315,H319

Klasyfikacja zagrożeń

Eye Irrit. 2 - Skin Irrit. 2

Kod klasy składowania

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

dust mask type N95 (US), Eyeshields, Gloves

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Certyfikaty analizy (CoA)

Lot/Batch Number
BCBV6451
BCBV3000
BCBT4987
BCBR6911V
BCBQ6756V

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Sigma-Aldrich

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Metal catalyst free carbon nanotube (MCFCNT) whiskers were first used as an electrode modification material on a gold electrode surface for zinc voltammetric measurements. A composite film of Nafion and MCFCNT whiskers was applied to a gold electrode surface to
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A new kind of analytical reagent, hexadecyl trimethyl ammonium bromide (CTAB), and dithizone product-modified gold nanoparticle dispersion, is developed for colorimetric response to 10 types of heavy metal ions (M(n+)), including Cr(VI), Cr(3+), Mn(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), Hg(2+)
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Selective cloud point extraction and preconcentration of trace amounts of silver as a dithizone complex prior to flame atomic absorption spectrometric determination.
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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