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339652

Cyclen

97%

Synonym(s):

1,4,7,10-Tetraazacyclododecane

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250 MG

$247.00

$247.00

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About This Item

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

Key Documents

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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

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Show Differences

1 of 4

This Item
43334990067910799050001
Cyclen 97%

Sigma-Aldrich

339652

Cyclen

Cyclen tetrahydrochloride 98%

Sigma-Aldrich

433349

Cyclen tetrahydrochloride

DOTA-functionalized silica gel ≥99%

Sigma-Aldrich

900679

DOTA-functionalized silica gel

BM-Cyclin lyophilized, active toward mycoplasma

Roche

10799050001

BM-Cyclin

assay

97%

assay

98%

assay

≥99%

assay

-

form

solid

form

solid

form

powder

form

lyophilized

mp

110-113 °C (lit.)

mp

>293 °C (dec.) (lit.)

mp

-

mp

-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

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.

Application

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

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

ppe

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
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
Jennifer K Molloy et al.
Organic & biomolecular chemistry, 10(2), 314-322 (2011-11-11)
The design and synthesis of dinuclear-lanthanide complexes possessing triazole-based bridges, formed by using copper catalysed 1,3-cycloaddition reactions between heptadentate alkyne functionalised cyclen europium or terbium complexes and di-azides (CuAAC reactions), are described. While this click reaction worked well for the
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
A rhodamine- cyclen conjugate as a highly sensitive and selective fluorescent chemosensor for Hg (II)
Shiraishi Y
The Journal of Organic Chemistry, 73(21), 8571-8574 (2008)
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Global Trade Item Number

SKUGTIN
339652-250MG04061826752500

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

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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.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    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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