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1,4,7-Triazacyclononane

1,4,7-Triazacyclononane structure

CAS No.: 4730-54-5

Chemical Name:: 1,4,7-Triazacyclononane

Synonyms: TACN;1,4,7-triazonane;TRIETHYLENETRIAMINE;157715;Triazacyclononane;1,4,8-Triazacyclononane;1,4,7-Triazacyclonomane;1,4,7-TRIAZACYCLONONANE;1,4,7-triazacycloheptane;Triazacyclononanewhitextl

CBNumber:: CB4234922

Molecular Formula:: C6H15N3

Molecular Weight:: 129.2

MDL Number:: MFCD00012358

MOL File:: 4730-54-5.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 03:05:23

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1,4,7-Triazacyclononane Properties

Melting point	42-45 °C (lit.)
Boiling point	110-130 °C/7 mmHg (lit.)
Density	0.9987 (rough estimate)
refractive index	1.4620 (estimate)
Flash point	>230 °F
storage temp.	2-8°C
Water Solubility	Soluble in water
solubility	Chloroform (Slightly), Methanol (Slightly)
form	crystal
pka	10.57±0.20(Predicted)
color	white
BRN	773877
InChI	InChI=1S/C6H15N3/c1-2-8-5-6-9-4-3-7-1/h7-9H,1-6H2
InChIKey	ITWBWJFEJCHKSN-UHFFFAOYSA-N
SMILES	N1CCNCCNCC1
FDA UNII	2UIF93C5H3
UNSPSC Code	12352005
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS05

Signal word

Danger

Hazard statements

H314

Precautionary statements

P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363

Hazard Codes

Risk Statements

Safety Statements

26-36/37/39-45

RIDADR

UN 3259 8/PG 2

WGK Germany

3-10-34

HazardClass

PackingGroup

III

HS Code

2933998090

NFPA 704

	1
3		0

1,4,7-Triazacyclononane price More Price(60)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	311308	1,4,7-Triazacyclononane 95%	4730-54-5	100mg	$136	2026-04-30	Buy
Sigma-Aldrich	311308	1,4,7-Triazacyclononane 95%	4730-54-5	500mg	$416	2026-04-30	Buy
TCI Chemical	T1878	1,4,7-Triazacyclononane >98.0%(GC)	4730-54-5	200mg	$54	2026-04-30	Buy
TCI Chemical	T1878	1,4,7-Triazacyclononane >98.0%(GC)	4730-54-5	1g	$155	2026-04-30	Buy
Strem Chemicals	07-2500	1,4,7-Triazacyclononane, 97% 97%	4730-54-5	25mg	$36	2026-04-30	Buy

Product number	Packaging	Price	Buy
311308	100mg	$136	Buy
311308	500mg	$416	Buy
T1878	200mg	$54	Buy
T1878	1g	$155	Buy
07-2500	25mg	$36	Buy

1,4,7-Triazacyclononane Chemical Properties, Uses, Production

Description

1,4,7-Triazacyclononane, known as "TACN" which is pronounced "tack-en," is a cyclic organic compound with the formula C6H12(NH)3. TACN is derived, formally speaking, from cyclononane by replacing three equidistant CH2 groups with NH groups. TACN is one of the oligomers derived from aziridine, C2H4NH. Other members of the series include diazacyclohexane, C4H8(NH)2, and the cyclic tetramer 1,4,7,10-tetraazacyclododecane.

Chemical Properties

White - light yellow solid

Uses

Starting material for the synthesis of 1,4,7-trifunctionalized derivatives which have applications in metal complexation.

Uses

1,4,7-Triazacyclononane (TACN) is a versatile platform from which various ligands can be derived to form effective chelators for (radio)copper(II) complexation. The ability of TACN-derivatives to form highly stable complexes with copper(II) is greatly influenced by the number and type of substituents on the macrocyclic ring. The formed copper(II) complexes show a broad variability in their thermodynamic stability and kinetic inertness, varying in structure from square-pyramidal to distorted octahedral. TACN-based BFCAs have also been used for indirect radiolabelling of biomolecules, rendering them suitable for imaging and therapy.

Application

Starting material for the synthesis of 1,4,7-trifunctionalized derivatives which have applications in metal complexation.
Possible reagent for compleximetric titrations with high cation-binding selectivity.

Preparation

The ligand is prepared from diethylene triamine as follows by macrocyclization using ethyleneglycol ditosylate.
H2NCH2CH2NHCH2CH2NH2 + 3 TsCl → Ts(H)NCH2CH2N(Ts)CH2CHH2N(H)Ts + 3 HCl Ts(H)NCH2CH2N(Ts)CH2CH2N(H)Ts + 2 NaOEt → Ts(Na)NCH2CH2N(Ts)CH2CH2N(Na)Ts Ts(Na)NCHH2CH2N(Ts)CH2CH2N(Na)Ts + TsOCH2CH2OTs + → [(CH2CH2N(Ts)]3 + 2 NaOTs [(CH2CH2N(Ts)]3 + 3 H2O → [CH2CH2NH]3 + 3 HOTs

Definition

ChEBI: 1,4,7-triazonane is a saturated organic heteromonocyclic parent, a crown amine and an azacycloalkane.

Synthesis

1H-1,4,7-Triazonine, octahydro-1,4,7-tris(phenylmethyl)-

125262-43-3

4730-54-5

General procedure for the synthesis of 1,4,7-tribenzyl-1,4,7-triazacyclononane from 1,4,7-tribenzyl-1,4,7-triazacyclononane: 1,4,7-tribenzyl-1,4,7-triazacyclononane (100 mg, 0.25 mmol) was dissolved in 15 mL of methanol. 10% Pd/C catalyst (100 mg) was added and the reaction mixture was stirred at 50 °C for 3 hours. Upon completion of the reaction, the Pd/C catalyst was removed by filtration. Subsequently, the solvent was evaporated under reduced pressure to afford 32 mg of 1,4,7-triazacyclononane in 100% yield.

References

[1] European Journal of Organic Chemistry, 2018, vol. 2018, # 13, p. 1546 - 1551
[2] Patent: CN108276353, 2018, A. Location in patent: Paragraph 0052; 0056; 0063; 0064; 0065
[3] Patent: US2014/142298, 2014, A1. Location in patent: Paragraph 0275; 0276
[4] European Journal of Organic Chemistry, 2014, vol. 2014, # 35, p. 7831 - 7838

1,4,7-Triazacyclononane synthesis

Synthesis of 1,4,7-Triazacyclononane from 1H-1,4,7-Triazonine, octahydro-1,4,7-tris(phenylmethyl)-

1,4,7-Triazacyclononane Preparation Products And Raw materials

Raw materials

1H-1,4,7-Triazonine, octahydro-1,4,7-tris(phenylmethyl)-

Preparation Products

6bH-2a,4a,6a-Triazacyclopenta[cd]pentalene, hexahydro- (9Ci)

1,4,7-Triazacyclononane Suppliers

Global Suppliers ( 225)

Supplier	Tel	Email	Country	ProdList	Advantage
Tianjin YongSheng Biotechnology Co., Ltd.	022-60987737 13512258274;13820956092	sales@immortalbio.com	China	154	55
Shanghai Jian Chao Chemical Technology Co., Ltd.	150-2103-5486 18017383231	983544897@qq.com	China	9335	55
Jiangxi Boye Medical Technology Co., Ltd	027-18971341812/18971341812 18971341812	anikay@boyechemicals.com	China	480	58
Suzhou Laing Biological Technology Co., LTD	0512-62968256 18550502935	export@laingbiotec.com	China	994	58
Shanghai Liling Pharma Technology Co., Ltd	18868379601	lilingsales@163.com	China	34	58
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd	0431-80534353 19917294565	et@chemextension.com	China	3904	55
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Capot Chemical Co., Ltd	+86 (0) 571 85 58 67 18		China	18187	66

Supplier	Advantage
Tianjin YongSheng Biotechnology Co., Ltd.	55
Shanghai Jian Chao Chemical Technology Co., Ltd.	55
Jiangxi Boye Medical Technology Co., Ltd	58
Suzhou Laing Biological Technology Co., LTD	58
Shanghai Liling Pharma Technology Co., Ltd	58
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd	55
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
TCI (Shanghai) Development Co., Ltd.	81
Capot Chemical Co., Ltd	66

View Latest Price from 1,4,7-Triazacyclononane manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-08-07	1,4,7-Triazacyclononane 4730-54-5	$1.00-1.50	1KG	99%	100000KG	Shaanxi Dideu Medichem Co. Ltd
2025-06-07	1,4,7-Triazacyclononane 4730-54-5		10g	>95.00%	10g	Xian confluore Biological Technology Co., Ltd.
2023-12-04	1,4,7-Triazacyclononane 4730-54-5			98%	100kg	Huida Pharmaceutical Technology (Shanghai) Co., Ltd.

1,4,7-Triazacyclononane
4730-54-5
$1.00-1.50
99%
Shaanxi Dideu Medichem Co. Ltd

1,4,7-Triazacyclononane
4730-54-5
$0.00
>95.00%
Xian confluore Biological Technology Co., Ltd.

1,4,7-Triazacyclononane
4730-54-5
98%
Huida Pharmaceutical Technology (Shanghai) Co., Ltd.

1,4,7-Triazacyclononane Spectrum

1,4,7-Triazacyclononane(4730-54-5)¹HNMR 1,4,7-Triazacyclononane(4730-54-5)FT-IR 1,4,7-Triazacyclononane(4730-54-5)IR 1,4,7-Triazacyclononane(4730-54-5)Raman

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1of4

1,4,7-TRIAZACYCLONONANE OCTAHYDRO-1H-1,4,7-TRIAZONINE Octahydro-1H-1,4,7-triazonine, Triethylenetriamine 1,4,7-Triazacyclonomane Triazacyclononanewhitextl 1,4,7-Triazacyclononane,97% DOTA-d-Phe-Cys-Tyr-d-Trp-Lys-Thr-Cys-Thr 157715 1,4,7-Triazacyclononane hcl 1,4,7-triazonane trihydrochloride 1,4,8-Triazacyclononane 1H-1,4,7-Triazonine, octahydro- Triazacyclononane 1,4,7-triazacyclononane (TACN) 1,4,7-Triazonane - [T32092] 1,4,7-triazacyclonylalkane 1,4,7-triazacycloheptane 1,4,7-triazonane TACN TRIETHYLENETRIAMINE 4730-54-5 4370-54-5 Synthetic Reagents Crown Ethers Chelation/Complexation Compounds Achiral Nitrogen Cy-N organic amine