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126721

Sigma-Aldrich

Hydrazobenzene

Synonym(s):

N,N′-Diphenylhydrazine, N,N′-Bianiline, NSC 3510

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About This Item

Linear Formula:
C6H5NHNHC6H5
CAS Number:
122-66-7
Molecular Weight:
184.24
Beilstein:
639793
EC Number:
204-563-5
MDL number:
MFCD00003012
UNSPSC Code:
12352100
PubChem Substance ID:
24847740
NACRES:
NA.22

form

solid

mp

123-126 °C (lit.)

SMILES string

N(Nc1ccccc1)c2ccccc2

InChI

1S/C12H12N2/c1-3-7-11(8-4-1)13-14-12-9-5-2-6-10-12/h1-10,13-14H

InChI key

YBQZXXMEJHZYMB-UHFFFAOYSA-N

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General description

Hydrazobenzene has been prepared by the reduction of azobenzene by SmI(2) in THF.
Hydrazobenzene is an intermediate in the hydrogenation of azoxybenzene to aniline.

Application

Reactant involved in:
  • Insertion reactions with organometallic tantalum complexes
  • Reduction reactions catalyzed by titanium(III) trichloride yielding amines
  • Studying the mechanism of hydrazobenzene rearrangement
  • Reaction with N-heterocyclic stable silylene
  • Synthesis of dimanganese amide hydrazide cluster complexes
  • Iron-mediated hydrazine reductions yielding iron arylimide cubanes

Other Notes

Contains varying amounts of azobenzene

Signal Word

Danger

Hazard Statements

H302,H350,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

126721-VAR:
126721-100G:
126721-BULK:
126721-25G:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Chintada Nageswara Rao et al.
The Journal of organic chemistry, 76(22), 9438-9443 (2011-10-19)
The reduction of azobenzene by SmI(2) in THF to give hydrazobenzene was investigated. The kinetics are first order in the substrate and first order in SmI(2). The kinetic order in MeOH is ca. 0.56, and in TFE it is ca.
Hydrazobenzene.
Report on carcinogens : carcinogen profiles, 10, 139-140 (2004-08-26)
Darol E Dodd et al.
International journal of toxicology, 31(6), 564-571 (2012-11-09)
Male F344 rats were exposed to hydrazobenzene (HZB) by dietary feed at concentrations of 0, 5, 20, 80, 200, or 300 ppm for 5 days, 2 weeks, 4 weeks, or 13 weeks duration. End points evaluated included clinical observations, body
H Fabre et al.
Journal of pharmaceutical sciences, 73(12), 1706-1709 (1984-12-01)
A high-performance liquid chromatographic method was developed for the simultaneous determination of azobenzene, hydrazobenzene, and four other decomposition products in phenylbutazone injectable formulations. Separation was achieved on a C18 column, with 0.1 M Tris-citrate buffer (pH 5.25) and acetonitrile (52:48)
F Matsui et al.
Journal of pharmaceutical sciences, 72(10), 1223-1224 (1983-10-01)
A high-performance liquid chromatographic method has been developed for the simultaneous determination of azobenzene and hydrazobenzene in phenylbutazone and sulfinpyrazone raw materials and formulations. The drug raw material or formulation is shaken with 1N NaOH and n-hexane and centrifuged. The
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