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Sigma-Aldrich

Hydrazine monohydrochloride

97%

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Synonym(s):
Hydrazinium chloride, Hydrazinium monochloride
Linear Formula:
NH2NH2 · HCl
CAS Number:
2644-70-4
Molecular Weight:
68.51
EC Number:
220-154-4
MDL number:
MFCD00044368
UNSPSC Code:
12352100
PubChem Substance ID:
24852940
NACRES:
NA.22

Quality Level

200

Assay

97%

form

solid

mp

89 °C (lit.)

SMILES string

Cl[H].NN

InChI

1S/ClH.H4N2/c;1-2/h1H;1-2H2

InChI key

BIVUUOPIAYRCAP-UHFFFAOYSA-N

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General description

Hydrazine monohydrochloride is commonly used as a reagent in the synthesis of pyrazoles.

Application

Hydrazine monohydrochloride has been used:
  • as catalyst in the synthesis of titanium oxide polymers via catalytic sol-gel process
  • in fabrication of amorphous titanium dioxide (TiO2) thin films exhibiting high refractive indices and high transparency
  • in preparation of ethyl 3-ethoxy-1H-pyrazole-4-carboxylate

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Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Skin Sens. 1

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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Tomáš Taubner et al.
International journal of biological macromolecules, 103, 202-207 (2017-05-21)
Alginic acid is a suitable material for modification to prepare new derivatives because of presence of its carboxyl groups. The high content of carboxyl groups over the entire length of its chain renders it an easily modifiable material with a
Sandrine Guillou et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 16(15), 4669-4677 (2010-03-25)
Our program, which has focused on the preparation of new pyrazole derivatives, has led us to report here an original and simplified preparation of ethyl 3-ethoxy-1H-pyrazole-4-carboxylate. This is based on the reaction of hydrazine monohydrochloride and diethyl 2-(ethoxymethylene)malonate. Further transformations
Ahmed M Elbedwehy et al.
Polymers, 11(12) (2019-11-30)
Super adsorbent polymers can be considered to be a very efficient solution for wastewater treatment. In general, their adsorption capacities depend on the type and amount of the functional groups present on the surface of the polymers, while their economic
Kathryn Lanza et al.
Psychopharmacology, 237(1), 155-165 (2019-08-23)
In the majority of Parkinson's disease (PD) patients, long-term dopamine (DA) replacement therapy leads to dyskinesia characterized by abnormal involuntary movements (AIMs). There are various mechanisms of dyskinesia, such as the sensitization of striatal DA D1 receptors (D1R) and upregulation
Wataru Shimizu et al.
Langmuir : the ACS journal of surfaces and colloids, 28(33), 12245-12255 (2012-07-24)
Amorphous titanium dioxide (TiO(2)) thin films exhibiting high refractive indices (n ≈ 2.1) and high transparency were fabricated by spin-coating titanium oxide liquid precursors having a weakly branched polymeric structure. The precursor solution was prepared from titanium tetra-n-butoxide (TTBO) via
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