| | Identification | More |  | [Name] 
 TPEN
 |  | [CAS] 
 16858-02-9
 |  | [Synonyms] 
 N,N,N',N'-TETRAKIS(2-PYRIDYLMETHYL)ETHYLENEDIAMINE
 TETRAKIS-(2-PYRIDYLMETHYL)ETHYLENEDIAMINE
 TPEN
 N,N,N',N',-TETRAKIS(2-PYRIDYLMETHYL)*ETH YLENEDIAMIN
 TPEN/CH63857
 N,N,NNTetrakis(2-pyridylmethyl)-1,2-ethylenediamine
 N,N,NNTetrakis-pyridin-2-ylmethyl-ethane-1,2-diamine
 N,N,N'',N''-TETRAKIS(2-PYRIDYLMETHYL)ETHYLENEDIAMINE (TPEN)
 N,N,N'',N''-Tetrakis-(2-pyridylmethyl)-ethylenediame
 N,N,N',N'-Tetra(2-pyridyl)-1,2-ethanediamine
 N,N'-Ethylenebis[bis(2-pyridyl)amine]
 |  | [Molecular Formula] 
 C26H28N6
 |  | [MDL Number] 
 MFCD00036918
 |  | [Molecular Weight] 
 424.54
 |  | [MOL File] 
 16858-02-9.mol
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 Colourless Crystals
 |  | [Melting point ] 
 110-112 °C
 |  | [Boiling point ] 
 530.56°C (rough estimate)
 |  | [density ] 
 1.3893 (rough estimate)
 |  | [refractive index ] 
 1.4570 (estimate)
 |  | [storage temp. ] 
 Sealed in dry,2-8°C
 |  | [solubility ] 
 Soluble in DMSO (up to 10 mg/ml).
 |  | [form ] 
 Tan solid
 |  | [pka] 
 5.19±0.12(Predicted)
 |  | [color ] 
 Off-white or tan
 |  | [Usage] 
 Membrane-permeable zinc chelator; decreased the intracellular level of zinc and induced apoptosis
 |  | [BRN ] 
 4211982
 |  | [Stability:] 
 Stable for 2 years from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
 |  | [InChI] 
 InChI=1S/C26H28N6/c1-5-13-27-23(9-1)19-31(20-24-10-2-6-14-28-24)17-18-32(21-25-11-3-7-15-29-25)22-26-12-4-8-16-30-26/h1-16H,17-22H2
 |  | [InChIKey] 
 CVRXLMUYFMERMJ-UHFFFAOYSA-N
 |  | [SMILES] 
 C(N(CC1=NC=CC=C1)CC1=NC=CC=C1)CN(CC1=NC=CC=C1)CC1=NC=CC=C1
 |  | [CAS DataBase Reference] 
 16858-02-9(CAS DataBase Reference)
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xi
 |  | [Risk Statements ] 
 R36/37/38:Irritating to eyes, respiratory system and skin .
 |  | [Safety Statements ] 
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 S36:Wear suitable protective clothing .
 |  | [WGK Germany ] 
 3
 
 |  | [F ] 
 8-10-23
 |  | [HS Code ] 
 29333990
 | 
 | Hazard Information | Back Directory |  | [Description] 
 TPEN (16858-02-9) is a cell permeable metal chelator. Frequently used to study effects of zinc depletion on cellular processes.1,2
 |  | [Chemical Properties] 
 Colourless Crystals
 |  | [Uses] 
 Membrane-permeable zinc chelator; decreased the intracellular level of zinc and induced apoptosis
 |  | [Uses] 
 Membrane-permeable zinc chelator; decreased the intracellular level of zinc and induced apoptosis.
 |  | [Definition] 
 ChEBI: An N-substituted diamine that is ethylenediamine in which the four amino hydrogens are replaced by 2-pyridylmethyl groups.
 |  | [reaction suitability] 
 reagent type: chelator
 |  | [Biochem/physiol Actions] 
 N,N,N′,N′-Tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) elicits pro-apoptotic effect in human acute promyelocytic NB4 cells by inhibiting nitric oxide signalling and Zn2+ signaling. In microglia pretreated with zinc, TPEN inhibits the interleukin 6 secretion and nitric oxide synthase (iNOS) mRNA expression. It induces damage on DNA structure by activating ATM (ataxia telangiectasia mutated) and ATR (ATM-Rad3-related) signaling in human colon cancer cells.
 |  | [storage] 
 Store at -20°C
 |  | [References] 
 1) Chimienti et al. (2001) Role of cellular zinc in programmed cell death: temporal relationship between zinc depletion, activation of caspases and cleavage of Sp family transcription factors; Biochem. Pharmacol. 62 51
2) Meplan et al. (2000) Metalloregulation of the tumor suppressor protein p53: zinc mediates the renaturation of p53 after exposure to metal chelators in vitro and in intact cells; Oncogene 19 5227
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