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5,6-Dichloronicotinic acid

Product Name
5,6-Dichloronicotinic acid
CAS No.
41667-95-2
Chemical Name
5,6-Dichloronicotinic acid
Synonyms
2,3-dichloropyridine-5-carboxylic acid;5,6-DichL;5,6-Dichloro;TIMTEC-BB SBB003623;Avatrhopal Impurity 45;5,6-DICHLORONICOTINIC A;Avatrombopag Impurity 10;5,6-Dichloronicotinicaci;Avatroposide impurities16;5,6-DICHLORONICOTINIC ACID
CBNumber
CB5261891
Molecular Formula
C6H3Cl2NO2
Formula Weight
192
MOL File
41667-95-2.mol
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5,6-Dichloronicotinic acid Property

Melting point:
164-168 °C(lit.)
Boiling point:
342.1±37.0 °C(Predicted)
Density 
1.612±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
DMSO (Slightly), Methanol (Slightly)
pka
2.87±0.10(Predicted)
form 
Powder
color 
White to beige to tan
BRN 
383740
InChI
InChI=1S/C6H3Cl2NO2/c7-4-1-3(6(10)11)2-9-5(4)8/h1-2H,(H,10,11)
InChIKey
RNRLTTNKVLFZJS-UHFFFAOYSA-N
SMILES
C1=NC(Cl)=C(Cl)C=C1C(O)=O
CAS DataBase Reference
41667-95-2(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-36-26
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
29339900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
340219
Product name
5,6-Dichloropyridine-3-carboxylic acid
Purity
96%
Packaging
5g
Price
$26
Updated
2023/06/20
TCI Chemical
Product number
D2401
Product name
5,6-Dichloronicotinic Acid
Purity
>98.0%(T)
Packaging
5g
Price
$50
Updated
2025/07/31
TCI Chemical
Product number
D2401
Product name
5,6-Dichloronicotinic Acid
Purity
>98.0%(T)
Packaging
25g
Price
$172
Updated
2025/07/31
TRC
Product number
D435653
Product name
5,6-Dichloronicotinic Acid
Packaging
1g
Price
$50
Updated
2021/12/16
TRC
Product number
D435653
Product name
5,6-Dichloronicotinic Acid
Packaging
2.5g
Price
$60
Updated
2021/12/16
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5,6-Dichloronicotinic acid Chemical Properties,Usage,Production

Chemical Properties

white to off-white crystalline powder

Uses

5,6-Dichloronicotinic acid is a dihalonicotinic acid. It is used in the preparation of 5-chloro-6-iodonicotinic acid by iodine displacement.

Application

5,6-Dichloronicotinic acid is a compound that can be synthesized by reacting methyl ketones with chloroacetic acid. It is used in the synthesis of maleic anhydride and has been shown to inhibit the catalysis of acetylcholine chloride. It has also been shown to have an inhibitory effect on Alzheimer's disease. The kinetic mechanism for this inhibition occurs through the hydrolysis step of 5,6-Dichloronicotinic acid by magnesium chloride in hexane solution. The reactive acylation reaction proceeds when it reacts with acetic anhydride in the presence of pyridine.

Synthesis

401566-69-6

41667-95-2

The general procedure for the synthesis of 5,6-dichloropyridine-3-carboxylic acid from 5,6-dichloronicotinic acid ethyl ester was as follows: in a solvent mixture of tetrahydrofuran (THF), methanol (MeOH) and water (50 mL, 4:1:1, v/v/v), ethyl 5,6-dichloronicotinic acid ethyl ester (1.0 g, 4.5 mmol) and aqueous sodium hydroxide 2N solution (6.75 mL, 13.5 mmol). The reaction mixture was stirred at room temperature for 0.5 hours. Upon completion of the reaction, the mixture was concentrated to remove the organic solvent. Subsequently, the mixture was acidified with 2N hydrochloric acid to a pH of about 2. The acidified mixture was extracted with ether (30 mL x 3). The organic layers were combined, washed with water (50 mL x 3), dried over anhydrous sodium sulfate, and concentrated to give 5,6-dichloropyridine-3-carboxylic acid (800 mg, 91% yield) as a white solid.LCMS (ESI) m/z: 192.0 [M + H]+.

References

[1] Patent: US2013/317000, 2013, A1. Location in patent: Paragraph 0368-0369

5,6-Dichloronicotinic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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5,6-Dichloronicotinic acid Suppliers

Fuxin Crest Biotechnology Co. Ltd.
Tel
13062833949
Fax
QQ: 2073772974
Email
fred.wen@crcorporation.cn
Country
China
ProdList
853
Advantage
58
Shandong Xuande Pharmaceutical Technology Co. LTD
Tel
18866895588
Fax
0531-82777287
Email
dingjiaying@shiningpharm.com
Country
China
ProdList
163
Advantage
55
Shandong Dexin Fine Chemical Co., Ltd.
Tel
18553366272
Email
3091507995@qq.com
Country
China
ProdList
208
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
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View Lastest Price from 5,6-Dichloronicotinic acid manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
5,6-Dichloronicotinic acid 41667-95-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
10000KGS
Release date
2025-06-06
Hebei Chuanghai Biotechnology Co., Ltd
Product
5,6-Dichloronicotinic acid 41667-95-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-26
Zison Pharmaceutical (Shandong) Co., Ltd.
Product
5,6-Dichloronicotinic acid 41667-95-2
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
≥98% by HPLC
Supply Ability
50kg/month
Release date
2023-01-05

41667-95-2, 5,6-Dichloronicotinic acidRelated Search:


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  • Chloropyridines
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  • Chloropyridines
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  • Pyridines
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  • Organic acids
  • Pyridines, Pyrimidines, Purines and Pteredines
  • Intermediate