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D7766

Sigma-Aldrich

1,5-Diphenylcarbazide

reagent grade

Synonym(s):

1,5-Diphenylcarbohydrazide, sym.-Diphenylcarbazide

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10 G
$59.30
25 G
$114.00
100 G
$245.00

About This Item

Linear Formula:
C6H5NHNHCONHNHC6H5
CAS Number:
140-22-7
Molecular Weight:
242.28
Beilstein/REAXYS Number:
752039
EC Number:
205-403-7
MDL number:
MFCD00003013
UNSPSC Code:
12352100
PubChem Substance ID:
57654128
NACRES:
NA.21

$59.30

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grade

reagent grade

Quality Level

200

assay

≥99% (TLC)

form

powder

mp

170-175 °C (lit.)

functional group

amine
hydrazide

storage temp.

2-8°C

SMILES string

O=C(NNc1ccccc1)NNc2ccccc2

InChI

1S/C13H14N4O/c18-13(16-14-11-7-3-1-4-8-11)17-15-12-9-5-2-6-10-12/h1-10,14-15H,(H2,16,17,18)

InChI key

KSPIHGBHKVISFI-UHFFFAOYSA-N

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General description

1,5-Diphenylcarbazide (DPC) is a colorimetric reagent commonly employed in the determination of trace metals.[1]

Application

1,5-Diphenylcarbazide may be used in the following processes:
  • Quantification of palladium and platinum by spectrophotometry.[2]
  • As a mediator for the functionalization of carbon paste electrodes employed in the estimation of Hg(II) ions by differential pulse voltammetry.[3]
  • Alteration of gold nanoparticles (AuNPs), employed for the detection of chromium (VI) ions via colorimetry.[4]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000211307
0000211307
SHBP2521
SHBN9577
SHBN4191

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Spectrophotometric determination of platinum and palladium with 1, 5-diphenylcarbazide.
Brajter K, et al.
Fresenius Journal of Analytical Chemistry, 328(7), 598-598 (1987)
Photometric and visual detection of Cr (VI) using gold nanoparticles modified with 1, 5-diphenylcarbazide.
Liu, L, et al.
Microchimica Acta, 1-7 (2016)
Kinetic method for the determination of trace amounts of copper (II) in water matrices by its catalytic effect on the oxidation of 1, 5-diphenylcarbazide.
Crespo GA, et al.
Analytica Chimica Acta, 539(1), 317-325 (2005)
Hg (II) voltammetry on a 1, 5-diphenylcarbazide containing carbon paste electrode.
Navratilova Z.
Electroanalysis, 3(8), 799-802 (1991)
Suleyman I Allakhverdiev et al.
Journal of plant physiology, 160(1), 41-49 (2003-04-11)
The presence of 1.0 mol/L glycinebetaine during isolation of D1/D2/Cytb559 reaction centre (RC) complexes from photosystem II (PSII) membrane fragments preserved the photochemical activity, monitored as the light-induced reduction of pheophytin and electron transport from diphenylcarbazide to 2.6-dichlorophenol-indophenol.-Glycinebetaine also protected
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Questions

1–3 of 3 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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  3. Good afternoon. I would like to know if the following reagent. D7766-10g. 1,5 Diphenylcarbazide LOT #SHBM5246. is still valid, this reagent has been stored at 2°C to 8°C. It was acquired in 2020.

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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