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42860

Sigma-Aldrich

1,5-Diphenylcarbazide

purum p.a., ACS reagent, for the determination of Cd, Cr, Mg, SO4 and others, ≥97.0% (HPLC)

Synonym(s):

1,5-Diphenylcarbohydrazide, sym.-Diphenylcarbazide

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About This Item

Linear Formula:
C6H5NHNHCONHNHC6H5
CAS Number:
140-22-7
Molecular Weight:
242.28
Beilstein:
752039
EC Number:
205-403-7
MDL number:
MFCD00003013
UNSPSC Code:
12352100
PubChem Substance ID:
24866500

grade

ACS reagent
purum p.a.

Assay

≥97.0% (HPLC)

quality

for the determination of Cd, Cr, Mg, SO4 and others

technique(s)

titration: suitable

mp

170-175 °C (lit.)
171-175 °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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Other Notes

Reagent for the determination of chromium and other metals

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCBF9703V
BCBD9400V
BCBC9855V
BCBD4680V
BCBC9854V

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K.L. Cheng et al.
Handbook of Organic Analytical Reagents null
Y Nakano et al.
Water research, 35(2), 496-500 (2001-03-07)
We have proposed a new recovery system of hexavalent chromium Cr(VI) that is of great toxicity utilizing condensed-tannin gels derived from a natural polymer with many polyhydroxyphenyl groups. The adsorption mechanism of Cr(VI) to the tannin molecules was clarified. The
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
Deng-ming Sun
Guang pu xue yu guang pu fen xi = Guang pu, 23(1), 196-198 (2003-08-28)
In this paper, the reaction mechanism of the system of thallium (III)-copper(II)-ethylenediaminete-traacetate-hydrogen peroxide-diphenylcarbazide has been studied by spectrophotometric method. The experimental results show that the reaction mechanism of the system is based on the replacement of copper(II) by thallium (III)
M L Ghirardi et al.
Biochemistry, 35(6), 1820-1828 (1996-02-13)
The inhibition of DPC-mediated DCIP photoreduction by exogenous MnCl2 in Tris-treated photosystem II (PSII) membrane fragments has been used to probe for amino acids on the PSII reaction center proteins, including D1His337, that provide ligands for binding manganese [Preston, C.
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