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415308

Sigma-Aldrich

1-Ethylpiperazine

98%

Synonym(s):

N-Ethylpiperazine

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About This Item

Empirical Formula (Hill Notation):
C6H14N2
CAS Number:
5308-25-8
Molecular Weight:
114.19
Beilstein:
102971
EC Number:
226-166-6
MDL number:
MFCD00059912
UNSPSC Code:
12352100
PubChem Substance ID:
24865989
NACRES:
NA.22

Assay

98%

form

liquid

refractive index

n20/D 1.469 (lit.)

bp

157 °C (lit.)

density

0.899 g/mL at 25 °C (lit.)

SMILES string

CCN1CCNCC1

InChI

1S/C6H14N2/c1-2-8-5-3-7-4-6-8/h7H,2-6H2,1H3

InChI key

WGCYRFWNGRMRJA-UHFFFAOYSA-N

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Application

1-Ethylpiperazine may be used in the preparation of 2-(2-methoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1H-benzo[d]imidazole hydrochloride and 2-(5-((4-ethylpiperazin-1-yl)sulfonyl)-2-methoxyphenyl)-1H-benzo[d]imidazole hydrochloride.

Signal Word

Danger

Hazard Statements

H226,H302,H314,H317,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Skin Sens. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

109.4 °F - closed cup

Flash Point(C)

43 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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pKa Values of Some Piperazines at (298, 303, 313, and 323)K.
Khalili F, et al.
Journal of Chemical and Engineering Data, 54(10), 2914-2917 (2009)
Amjad M Qandil
Pharmaceuticals (Basel, Switzerland), 5(5), 460-468 (2012-01-01)
A group of benzimidazole analogs of sildenafil, 3-benzimidazolyl-4-methoxy-phenylsulfonylpiperazines 2-4 and 3-benzimidazolyl-4-methoxy-N,N-dimethyl- benzenesulfonamide (5), were efficiently synthesized. Compounds 2-5 were characterized by NMR and MS and contrary to the reported mass spectra of sildenafil, the spectra of the piperazine-containing compounds 2-4
Surajit Maity et al.
Physical chemistry chemical physics : PCCP, 12(23), 6150-6156 (2010-04-14)
The structures of the binary complexes between phenylacetylene and several tertiary amines viz., triethylamine, 1-ethylpiperidine, 1-ethylpiperazine, 1-azabicyclo[2.2.2]octane, and 1,4-diazabicyclo[2.2.2]octane were inferred using infrared-optical double resonance spectroscopy. The IR spectra in the acetylenic C-H stretching region clearly rule out the formation

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