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433349

Sigma-Aldrich

Cyclen tetrahydrochloride

98%

Synonym(s):

1,4,7,10-Tetraazacyclododecane tetrahydrochloride

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About This Item

Empirical Formula (Hill Notation):
C8H20N4 · 4HCl
CAS Number:
10045-25-7
Molecular Weight:
318.11
MDL number:
MFCD00068484
UNSPSC Code:
12352100
PubChem Substance ID:
24867136
NACRES:
NA.22

Assay

98%

form

solid

mp

>293 °C (dec.) (lit.)

SMILES string

Cl[H].Cl[H].Cl[H].Cl[H].C1CNCCNCCNCCN1

InChI

1S/C8H20N4.4ClH/c1-2-10-5-6-12-8-7-11-4-3-9-1;;;;/h9-12H,1-8H2;4*1H

InChI key

SBWLCGZEBQGYRP-UHFFFAOYSA-N

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General description

Cyclen tetrahydrochloride is a macrocycle hydrochloride salt. It can be synthesized using perhydro-2a,4a,6a,8a-tetraazacyclopenteno[1,3-f,g]acenaphthylene as a precursor. Cyclen tetrahydrochloride has an orthorhombic crystal structure. Cations are reported to exhibit crystallographic two-fold rotation symmetry and [3333] quadrangular conformation, having protonated N atoms at corner positions. Synthesis of cyclen from the corresponding butanedione-protected linear tetramines has been reported.

Application

Cyclen tetrahydrochloride may be used for the synthesis of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methyleneethylphosphinic acid), a new macrocyclic polyaza polyphosphinate ligand. It may also be used in the synthesis of anthraquinone-pendant cyclen.

Signal Word

Danger

Hazard Statements

H302,H311,H314,H410

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Zinc (II)-Cyclen Complex Attached to an Anthraquinone Moiety that Acts as a Redox-Active Nucleobase Receptor in Aqueous Solution.
Tucker JHR, et al.
Bulletin of the Chemical Society of Japan, 68(9), 2465-2469 (1995)
A Simple Synthesis of the Macrocycle 1,4,7,10-Tetraazacyclododecane.
Sandnes RW, et al.
Acta Chemica Scandinavica, 52(12), 1402-1404 (1998)
A new route to cyclen, cyclam and homocyclen.
Herve G, et al.
Tetrahedron Letters, 39(38), 6861-6864 (1998)
Structure of 1, 4, 7, 10-tetraazacyclododecane tetrahydrochloride.
Reibenspies JH and Anderson OP.
Acta Crystallographica Section C, Crystal Structure Communications, 46(1), 163-165 (1990)
Synthesis and complexation properties of a new macrocyclic polyaza polyphosphinate ligand, DOTEP (1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetrakis (methyleneethylphosphinate)).
Lazar I, et al.
Inorganic Chemistry, 30(26), 5016-5019 (1991)

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