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339652

Sigma-Aldrich

Cyclen

97%

Synonym(s):

1,4,7,10-Tetraazacyclododecane

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About This Item

Empirical Formula (Hill Notation):
C8H20N4
CAS Number:
294-90-6
Molecular Weight:
172.27
Beilstein:
606114
MDL number:
MFCD00066281
UNSPSC Code:
12162002
PubChem Substance ID:
24860658
NACRES:
NA.23
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Quality Level

100

Assay

97%

form

solid

mp

110-113 °C (lit.)

SMILES string

C1CNCCNCCNCCN1

InChI

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

InChI key

QBPPRVHXOZRESW-UHFFFAOYSA-N

General description

Cyclen is a microcyclic tetramine that can be used as a ligand that forms a co-ordination linkage with the surface metal cations. It can be used as a synthetic precursor. It can be prepared by S-alkylation of dithiooxamide with an excess amount of bromoethane.[1][2][3]

Application

Cyclen is an azamocrocycle, which can be used in the development of fluorescent nanosensors for the detection of metal ions.[4]

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV1194
MKBT9683V
03128LH
02628LH
04707BW

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Michael A Caldwell et al.
RSC advances, 10(15), 8994-8999 (2020-04-11)
Differences in tissue pH can be diagnostic of cancer and other conditions that shift cell metabolism. Paramagnetic probes are promising tools for pH mapping in vivo using magnetic resonance spectroscopy (MRS) as they provide uniquely shifted MR signals that change
Mohd Zulkefeli et al.
Inorganic chemistry, 50(20), 10113-10123 (2011-09-23)
In Nature, organized nanoscale structures such as proteins and enzymes are formed in aqueous media via intermolecular interactions between multicomponents. Supramolecular and self-assembling strategies provide versatile methods for the construction of artificial chemical architectures for controlling reaction rates and the
A new synthesis of cyclen (1, 4, 7, 10-tetraazacyclododecane)
Weisman GR and Reed DP
The Journal of Organic Chemistry, 61(15), 5186-5187 (1996)
Masanori Kitamura et al.
Inorganic chemistry, 50(22), 11568-11580 (2011-10-21)
Noninvasive magnetic resonance imaging (MRI) including the "chemical shift imaging (CSI)" technique based on (1)H NMR signals is a powerful method for the in vivo imaging of intracellular molecules and for monitoring various biological events. However, it has the drawback
Hela Nouri et al.
Dalton transactions (Cambridge, England : 2003), 42(34), 12157-12164 (2013-07-11)
A new cyclen derivative L, bearing a methyl-chromeno-pyridinylidene hydrazone moiety, was synthesized and studied in MeOH, as potential fluorescent "OFF-on-ON" sensors for Zn(ii). Photophysical properties of this ligand being PET regulated, L was only weakly emissive in the absence of
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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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