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4,4'-Bipyridine

4,4'-Bipyridine structure

CAS No.: 553-26-4

Chemical Name:: 4,4'-Bipyridine

Synonyms: 4,4-BIPYRIDINE;4,4-DIPYRIDYL;GAMMA,GAMMA-DIPYRIDYL;'LGC' (1608);γ,γ'-Dipyridy;4'-Bipyridine;g,g'-Dipyridyl;4,4'-Bipyridyl;4,4'-Dipyridyl;γ,γ'-Dipyridyl

CBNumber:: CB1671180

Molecular Formula:: C10H8N2

Molecular Weight:: 156.18

MDL Number:: MFCD00006416

MOL File:: 553-26-4.mol

MSDS File:: SDS

Last updated:2025-01-27 09:38:02

Product description	Number	Pack Size	Price
4,4′?Dipyridyl 98%	289426	5g	$39.7
4,4′-Bipyridine for synthesis	8.20158	10g	$77.7
4,4′?Dipyridyl 98%	289426	25g	$123.5
4,4'-Bipyridyl >98.0%(GC)(T)	B0469	25g	$83
4,4'-Bipyridyl >98.0%(GC)(T)	B0469	100g	$252
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4,4'-Bipyridine Properties

Melting point	109-112 °C(lit.)
Boiling point	305 °C(lit.)
Density	1.2814 (rough estimate)
refractive index	1.6057 (estimate)
Flash point	304-305°C
storage temp.	Store below +30°C.
solubility	4.5g/l
form	Powder
pka	pK1:3.17(+2);pK2:4.82(+1) (25°C)
color	Off-white to beige
Water Solubility	slightly soluble
Sensitive	Hygroscopic
λmax	300nm(CH3CN)(lit.)
Merck	14,3348
BRN	113176
Stability	Stable. Incompatible with strong oxidizing agents, strong acids.
InChIKey	MWVTWFVJZLCBMC-UHFFFAOYSA-N
CAS DataBase Reference	553-26-4(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	X4O2OD61CB
NIST Chemistry Reference	4,4'-Bipyridine(553-26-4)
EPA Substance Registry System	4,4'-Bipyridine (553-26-4)
UNSPSC Code	12352103
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06

Signal word

Danger

Hazard statements

H301

Precautionary statements

P301+P310+P330

Hazard Codes

T,Xi

Risk Statements

25-36/37/38-20/21-23/24/25

Safety Statements

26-36/37/39-45

RIDADR

UN 2811 6.1/PG 3

WGK Germany

RTECS

DW1760000

Hazard Note

Irritant

TSCA

Yes

HazardClass

6.1

PackingGroup

III

HS Code

29333999

Toxicity

LD50 orally in Rabbit: 172 mg/kg

NFPA 704

	1
3		1

4,4'-Bipyridine price More Price(34)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	289426	4,4′?Dipyridyl 98%	553-26-4	5g	$39.7	2025-07-31	Buy
Sigma-Aldrich	8.20158	4,4′-Bipyridine for synthesis	553-26-4	10g	$77.7	2025-07-31	Buy
Sigma-Aldrich	289426	4,4′?Dipyridyl 98%	553-26-4	25g	$123.5	2025-07-31	Buy
TCI Chemical	B0469	4,4'-Bipyridyl >98.0%(GC)(T)	553-26-4	25g	$83	2025-07-31	Buy
TCI Chemical	B0469	4,4'-Bipyridyl >98.0%(GC)(T)	553-26-4	100g	$252	2025-07-31	Buy

Product number	Packaging	Price	Buy
289426	5g	$39.7	Buy
8.20158	10g	$77.7	Buy
289426	25g	$123.5	Buy
B0469	25g	$83	Buy
B0469	100g	$252	Buy

4,4'-Bipyridine Chemical Properties,Uses,Production

Chemical Properties

off-white to tan powder

Uses

4,4'-Bipyridine is used in transition-metal complex catalyst chemistry for uniform polymerization, in luminescence chemistry and in spectrophotometric analysis. It plays an important role as a photosensitizer and luminescent material. It is also used as a precursor to paraquat viz. N,N'-dimethyl-4,4'-bipyridinium.

Definition

ChEBI: A bipyridine in which the two pyridine moieties are linked by a bond between positions C-4 and C-4'.

Synthesis Reference(s)

Tetrahedron Letters, 26, p. 1655, 1985 DOI: 10.1016/S0040-4039(00)98576-9

General Description

4,4′-Dipyridyl (BPY) is an organic linker mainly used in the preparation of coordination polymers. It is a pyridine derivative in which pyridyl groups can rotate along the carbon-carbon structure. It can be used as a catalyst for photoelectrochemical reduction.

Safety Profile

Poison by ingestion. When heatedto decomposition it emits toxic vapors of NOx.

Purification Methods

It crystallises from water, *benzene/pet ether, ethyl acetate and sublimes in vacuo at 70o. Also purify it by dissolving in 0.1M H2SO4 and twice precipitating by addition of 1M NaOH to pH 8. Then recrystallise it from EtOH. For the dihydrochloride see Viologen below. [Collman et al. J Am Chem Soc 109 4606 1987, Beilstein 23 H 800, 23 III/IV 1371, 23/8 V 28.]

4,4'-Bipyridine synthesis

Synthesis of 4,4'-Bipyridine from Pyridine

4,4'-Bipyridine Preparation Products And Raw materials

Raw materials

Isoalantolactone 4,4'-BIPYRIDINE 1,1'-DIOXIDE sodium pyridine-4-sulfinate 4-chloropyridine 4-Chloropyridinium chloride

1,4-Benzenediacetic acid, 2-nitro- Benzoylcholine Chloride 4-Methyl-2-nitrobenzaldehyde

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Preparation Products

1-METHYL-[4,4']BIPIPERIDINYL Paraquat dichloride 2,2'-DICHLORO-[4,4']-BIPYRIDINE [4,4''-Bipyridine]-2,2''-diamine 1,1''-[1,2-PHENYLENEBIS(METHYLENE)]BIS-4,4'-BIPYRIDINIUM BISHEXAFLUOROPHOSPHATE

1,1'-Bis[3-(trimethylammonio)propyl]-4,4'-bipyridinium Tetrachloride Dihydrate

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4,4'-Bipyridine Suppliers

Global( 559)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Changzhou AniKare Pharmatech Co., Ltd.	+86-0519-8359-8696 +8618018249389	sales@anikare.com	China	9942	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8772	58
Sichuan Zhuoyu Yantang Technology Co., Ltd.	+8613288715578	sales@sichuanzyyt.com	China	12247	58
Hebei Yanxi Chemical Co., Ltd.	+8618531123677	faithe@yan-xi.com	China	5853	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8422	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
airuikechemical co., ltd.	+86-18353166132	sales02@airuikechemical.com	China	983	58
Hebei Saisier Technology Co., LTD	+86-18400010335 +86-18034520335	admin@hbsaisier.cn	China	1015	58
Hebei Longbang Technology Co., LTD	+86-18633929156	admin@hblongbang.com	China	972	58
Springchem New Material Technology Co.,Limited	+86-021-62885108 +8613917661608	info@spring-chem.com	China	2068	57

Supplier	Advantage
Changzhou AniKare Pharmatech Co., Ltd.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Sichuan Zhuoyu Yantang Technology Co., Ltd.	58
Hebei Yanxi Chemical Co., Ltd.	58
Shanghai UCHEM Inc.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
airuikechemical co., ltd.	58
Hebei Saisier Technology Co., LTD	58
Hebei Longbang Technology Co., LTD	58
Springchem New Material Technology Co.,Limited	57

View Lastest Price from 4,4'-Bipyridine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-10-17	4,4'-Bipyridine 553-26-4	US $65.00-495.00 / g	1g	0.98	25kg	Shanghai UCHEM Inc.
2025-10-17	4,4'-Dipyridine 553-26-4	US $130.00 / kg	1kg	99%min	500kgs	Shanghai Yongzeng Technology Co.,Ltd
2025-10-17	4,4'-Bipyridine 553-26-4	US $8.90 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd

4,4'-Bipyridine
553-26-4
US $65.00-495.00 / g
0.98
Shanghai UCHEM Inc.

4,4'-Dipyridine
553-26-4
US $130.00 / kg
99%min
Shanghai Yongzeng Technology Co.,Ltd

4,4'-Bipyridine
553-26-4
US $8.90 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

4,4'-Bipyridine Spectrum

4,4'-Bipyridine(553-26-4)MS 4,4'-Bipyridine(553-26-4)¹HNMR 4,4'-Bipyridine(553-26-4)¹³CNMR 4,4'-Bipyridine(553-26-4)IR1 4,4'-Bipyridine(553-26-4)IR2 4,4'-Bipyridine(553-26-4)IR3 4,4'-Bipyridine(553-26-4)Raman 4,4'-Bipyridine(553-26-4)ESR

553-26-4(4,4'-Bipyridine)Related Search:

4-Aminobutyric acid DIPIPERIDINOMETHANE Pyridine Sulfasalazine Chromium picolinate

Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate 2,2'-Bipyridine Morfamquat(dichloride((content>65%) Paraquat methosulfate 2,2':6',2''-TERPYRIDINE

!2,2'-bipyridine! !dihydrochloride! 2,2'-DIPYRIDYL N,N'-DIOXIDE tris[2,2'-bipyridine]ruthenium dichloride ,tris(2,2’-bipyridine-n,n’)-,dichloride,(oc-6-11)-ruthenium(2+ 4,4'-Dinonyl-2,2'-bipyridine 4,4’-diphenyl-2’-bipyridin

Paraquat dichloride 4,4'-Dipyridyl hydrate 1,1'-DIOCTADECYL-4,4'-BIPYRIDINIUM DIPERCHLORATE

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'LGC' (1608) GAMMA,GAMMA'-DIPYRIDYL GAMMA,GAMMA-DIPYRIDYL 4, 4'-DIPYRIDINE 4,4-DIPYRIDYL 4,4-BIPYRIDINE 4,4'-BIPYRIDYL HYDRATE 4,4,4'-DIPYRIDYL 4-PYRIDIN-4-YLPYRIDINE 4-(4-Pyridyl)pyridine 4,4’-Bipyridine,dihydrate Bipyridine, 4,4'- gamma,gamma’-bipyridyl gamma,gamma'-Bipyridyl 4,4'Bipyridinyl 4,4'-BIPYRIDINE ANHYDROUS PESTANAL 4,4'-Bipyridyl,98% 4,4'-Bipyridine,98% 4,4'-BIPYRIDINE ANHYDROUS 4,4'-Dipyridyl, anhydrous, 98% 4,4-DIPYRIDYL, 4,4-BIPYRIDINE 4,4''-DIPYRIDINE / 4,4''-DIPYRIDYL 4,4''-DIPYRIDYL, 98%, ANHYDROUS 4,4μ-Bipyridine, 4,4μ-Bipyridyl 4,4'-Dipyridyl ,99% g,g'-Dipyridyl 4,4′-Bipyridyl,4,4′-Bipyridine 4,4'-Bipyridyl dihydrate 4,4'-Dipyridyl 98% 4, 4 - al pyridine 4,4'-Bipyridine SynonyMs 4,4'-Dipyridyl γ,γ'-Dipyridy 4,4'-Dipyridyl≥ 99% (Assay) 4,4'-Bipyridine for synthesis 4,4'-Dipyridyl, 99%, for synthesis 4,4'-Bipyridyl > 4, 4 '- pyridine 4,4,-Bipyridyl, GR 98% 4,4'-Bipyridine (8CI, 9CI, ACI) Metamitron Impurity 7 4,4'-Bipyridine 4,4'-Bipyridyl 4,4'-Dipyridine 4,4'-Dipyridyl 4,4''-Bipyridine γ,γ'-Dipyridyl 4,4'-Bipyridyl 4'-Bipyridine 553-26-4 53-26-4 -C5H4N22H2O Photochromic Compounds Viologens (Photochromic, Related Compounds) C9 C9 to C46 Carbonyl Compounds Building Blocks Pyridines