Chinese Japanese Germany Korea
ChemicalBook >> CAS DataBase List >>2,5-Dichloro-4-iodopyridine

2,5-Dichloro-4-iodopyridine

2,5-Dichloro-4-iodopyridine Structure
2,5-Dichloro-4-iodopyridine structure
CAS No.
796851-03-1
Chemical Name:
2,5-Dichloro-4-iodopyridine
Synonyms
2,5-Dichloro-4-iodopyridine;Pyridine, 2,5-dichloro-4-iodo-;2,5-Dichloro-4-iodopyridine 98%;Pyridine, 2,5-dichloro-4-iodo- ISO 9001：2015 REACH
CBNumber:
CB12456686
Molecular Formula:
C5H2Cl2IN
Molecular Weight:
273.89
MDL Number:
MFCD13185538
MOL File:
796851-03-1.mol
MSDS File:
SDS
Last updated:2026-05-27 23:17:56
Product description Number Pack Size Price
2,5-Dichloro-4-iodopyridine >97% OR345414 1g $21
2,5-Dichloro-4-iodopyridine >97% OR345414 5g $30
2,5-Dichloro-4-iodopyridine >97% OR345414 25g $137
2,5-Dichloro-4-iodopyridine >97% OR345414 100g $540
2,5-Dichloro-4-iodopyridine 98% AS47926 1g $28
More product size
Request For Quotation

2,5-Dichloro-4-iodopyridine Properties

Melting point 140 ºC
Boiling point 279 ºC
Density 2.129
Flash point 122 ºC
storage temp. Keep in dark place,Inert atmosphere,2-8°C
pka -2.42±0.10(Predicted)
Appearance White to off-white Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P280-P305+P351+P338-P310
HS Code  2933399990

2,5-Dichloro-4-iodopyridine price More Price(78)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR345414 2,5-Dichloro-4-iodopyridine >97% 796851-03-1 1g $21 2026-06-04 Buy
Apolloscientific OR345414 2,5-Dichloro-4-iodopyridine >97% 796851-03-1 5g $30 2026-06-04 Buy
Apolloscientific OR345414 2,5-Dichloro-4-iodopyridine >97% 796851-03-1 25g $137 2026-06-04 Buy
Apolloscientific OR345414 2,5-Dichloro-4-iodopyridine >97% 796851-03-1 100g $540 2026-06-04 Buy
Activate Scientific AS47926 2,5-Dichloro-4-iodopyridine 98% 796851-03-1 1g $28 2026-06-04 Buy
Product number Packaging Price Buy
OR345414 1g $21 Buy
OR345414 5g $30 Buy
OR345414 25g $137 Buy
OR345414 100g $540 Buy
AS47926 1g $28 Buy

2,5-Dichloro-4-iodopyridine Chemical Properties,Uses,Production

Synthesis

2,5-Dichloropyridine

16110-09-1

2,5-Dichloro-4-iodopyridine

796851-03-1

a) Dissolve 2,5-dichloropyridine (10 g, 67.57 mmol) in THF (17 mL) under nitrogen protection and slowly add dropwise to a mixture of n-BuLi isohexane solution (33.8 mL, 67.57 mmol) and diisopropylamine (9.63 mL, 67.57 mmol) in THF (68.0 mL) that has been pre-cooled to -78°C. . After the dropwise addition, the reaction mixture was continued to be stirred at -78°C for 30 min. Subsequently, a solution of THF (17.0 mL) with I2 (17.49 g, 68.92 mmol) was added slowly dropwise, and after completion of the dropwise addition, the reaction was kept at -78°C for 1 hour. At the end of the reaction, the reaction was quenched with deionized water (75 mL) and slowly warmed to room temperature. The reaction mixture was extracted with ether (3 x 100 mL), the organic phases were combined, dried with anhydrous MgSO4 and concentrated under reduced pressure. The residue was ground with dichloromethane to give the solid product 2,5-dichloro-4-iodopyridine (9.72 g, 53% yield). The concentrated residue of the filtrate was purified by silica gel column chromatography using a gradient elution with a 50-100% isohexane solution of dichloromethane. The product-containing fraction was collected, concentrated under reduced pressure, and the residue was ground with methanol to give a second batch of 2,5-dichloro-4-iodopyridine (5.74 g, 31% yield).1H NMR (300 MHz, DMSO) δ 7.85 (1H, s), 8.34 (1H, s).

References

[1] Tetrahedron Letters, 2004, vol. 45, # 42, p. 7873 - 7877
[2] Patent: WO2009/153589, 2009, A1. Location in patent: Page/Page column 117
[3] Patent: WO2009/66786, 2009, A1. Location in patent: Page/Page column 120
[4] Patent: US2017/29404, 2017, A1. Location in patent: Paragraph 0267-0269
[5] ACS Chemical Neuroscience, 2017, vol. 8, # 9, p. 1980 - 1994

2,5-Dichloro-4-iodopyridine synthesis

16110-09-1
796851-03-1
Synthesis of 2,5-Dichloro-4-iodopyridine from 2,5-Dichloropyridine

2,5-Dichloro-4-iodopyridine Preparation Products And Raw materials

Raw materials

Tetrahydrofuran 2,5-Dichloropyridine n-Butyllithium 2-methylpentane Diisopropylamine
iodine

1of2

Preparation Products

2,5-DICHLORO-3-IODOPYRIDINE

2,5-Dichloro-4-iodopyridine Suppliers

Global( 134)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20122 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806 sales@capot.com China 29640 60
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29815 58
Accela ChemBio Inc. 		+1-858-6993322 info@accelachem.com United States 21193 58
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63687 58
Shenzhen Excellent Biotech Co., Ltd. 		13480692018 ramyan@ex-biotech.com CHINA 954 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21142 58
Neostar United (Changzhou) Industrial Co., Ltd. 		+86-0519-85551759 +8613506123987 marketing1@neostarunited.com China 8828 58
ANHUI WITOP BIOTECH CO., LTD 		+8615255079626 eric@witopchemical.com China 23541 58
Supplier Advantage
Henan Fengda Chemical Co., Ltd 		58
Capot Chemical Co.,Ltd. 		60
career henan chemical co 		58
Accela ChemBio Inc. 		58
Alchem Pharmtech,Inc. 		58
Shenzhen Excellent Biotech Co., Ltd. 		58
CONIER CHEM AND PHARMA LIMITED 		58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		58
Neostar United (Changzhou) Industrial Co., Ltd. 		58
ANHUI WITOP BIOTECH CO., LTD 		58

View Lastest Price from 2,5-Dichloro-4-iodopyridine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Pyridine, 2,5-dichloro-4-iodo- pictures 2025-11-18 Pyridine, 2,5-dichloro-4-iodo-
796851-03-1
 $1.10 1g 99.00% 100 Tons min Dideu Industries Group Limited
4-Chloro-2-fluoro-5-iodopyridine pictures 2025-09-25 4-Chloro-2-fluoro-5-iodopyridine
796851-03-1
 $1.00-200.00 1KG 99%, 99.5% Sublimated Henan Fengda Chemical Co., Ltd
Pyridine, 2,5-dichloro-4-iodo pictures 2019-07-06 Pyridine, 2,5-dichloro-4-iodo
796851-03-1
 $1.00 1KG 95% 200KG Career Henan Chemical Co

796851-03-1(2,5-Dichloro-4-iodopyridine)Related Search:

Pyridine, 2,4-dichloro-5-iodo- 2-AMINO-4-CHLORO-5-NITROPYRIDINE 2,3-Dibromopyridine 2,3-Dichloropyridine Pyridine, 2,3-dichloro-4-methyl- (9CI)
2,4,6-trichloronicotinonitrile 5-bromo-2-fluoro-4-methoxypyridine Benzoic acid,5-broMo-2-(trifluoroMethyl)-,Methyl ester 2,3-Dichloropyridine-4-carboxaldehyde 2,4-Dichloropyridine-3-carboxylic acid
2,3,5-Trichloropyridine-4-carboxylic acid 2,4-Dichloropyridine 2,3-dichloro-4-pyridineboronic acid 2,4-DICHLORO-6-MORPHOLINO-1,3,5-TRIAZINE 2,4-Dichloro-3-iodopyridine
2,3-DICHLOROPYRIDINE-4-CARBOXYLIC ACID 2,3,5-Trichloropyridine-4-carboxaldehyde 2,4-BIS(BENZYLOXY)PYRIMIDINE-5-BORONIC ACID

1of4

2,5-Dichloro-4-iodopyridine Pyridine, 2,5-dichloro-4-iodo- 2,5-Dichloro-4-iodopyridine 98% Pyridine, 2,5-dichloro-4-iodo- ISO 9001：2015 REACH 796851-03-1 Propidium heterocyclic series