ChemicalBook > CAS DataBase List > Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)

Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)

Product Name
Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)
CAS No.
2941-48-2
Chemical Name
Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)
Synonyms
2,5-Dichlor-benzothiazol;Benzothiazole, 2,5-dichloro-;2,5-dichloro-1,3-benzothiazole;Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)
CBNumber
CB81050329
Molecular Formula
C7H3Cl2NS
Formula Weight
204.08
MOL File
2941-48-2.mol
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Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) Property

Melting point:
64-66℃
Boiling point:
287℃
Density 
1.567
Flash point:
127℃
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
pka
-0.73±0.10(Predicted)
Appearance
Light yellow to light brown Solid
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Safety

HS Code 
29342000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC
Product number
D438498
Product name
2,5-Dichlorobenzothiazole
Packaging
500mg
Price
$200
Updated
2021/12/16
SynQuest Laboratories
Product number
7H70-5-1E
Product name
2,5-Dichloro-1,3-benzothiazole
Purity
97%
Packaging
1g
Price
$82
Updated
2021/12/16
Matrix Scientific
Product number
073453
Product name
2,5-Dichlorobenzothiazole
Purity
95+%
Packaging
1g
Price
$184
Updated
2021/12/16
SynQuest Laboratories
Product number
7H70-5-1E
Product name
2,5-Dichloro-1,3-benzothiazole
Purity
97%
Packaging
5G
Price
$194
Updated
2021/12/16
Matrix Scientific
Product number
073453
Product name
2,5-Dichlorobenzothiazole
Purity
95+%
Packaging
5g
Price
$573
Updated
2021/12/16
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Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) Chemical Properties,Usage,Production

Chemical Properties

Pale yellow solid

Synthesis

5331-91-9

2941-48-2

General procedure for the synthesis of 2,5-dichlorobenzothiazole from 2-mercapto-5-chlorobenzothiazole: 5-chlorobenzothiazole-2-thiol (2 g, 9.9 mmol, purchased from Aldrich) was slowly added to thionyl chloride (20 mL, purchased from Aldrich) and stirred for 1 hour at room temperature. The reaction mixture was then heated to 50 °C and maintained for 15 minutes. Upon completion of the reaction, the mixture was cooled to room temperature, slowly poured into ice water and stirring was continued for 30 minutes. The reaction product precipitated out of the solution as a yellow solid and was collected by vacuum filtration, dried under a stream of air followed by high vacuum drying to afford 1.92 g of the target compound 2,5-dichlorobenzothiazole in 96% yield. The structure of the product was confirmed by 1H NMR (400 MHz, DMSO-d6): δ 8.18 (d, J = 8.7 Hz, 1H), 8.1 (d, J = 2.0 Hz, 1H), 7.59 (dd, J = 8.7,2.1 Hz, 1H).

References

[1] Patent: US2005/250820, 2005, A1. Location in patent: Page/Page column 71
[2] Synthesis (Germany), 2018, vol. 50, # 10, p. 2027 - 2032
[3] Patent: WO2014/176258, 2014, A1. Location in patent: Page/Page column 29
[4] Patent: WO2007/146066, 2007, A2. Location in patent: Page/Page column 88
[5] Patent: WO2009/55357, 2009, A1. Location in patent: Page/Page column 35

Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) Preparation Products And Raw materials

Raw materials

Preparation Products

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Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) Suppliers

China 84 Europe 1 Germany 1 India 2 Japan 1 United Kingdom 1 United States 8 Global 98
Pure Chemistry Scientific Inc.
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View Lastest Price from Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) manufacturers

Honest Joy Holdings Limited
Product
2,5-Dichlor-benzothiazol 2941-48-2
Price
US $0.00/KG
Min. Order
1KG
Purity
98.8%
Supply Ability
100 tons
Release date
2022-01-14
Zhuozhou Wenxi import and Export Co., Ltd
Product
Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) 2941-48-2
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI) 2941-48-2
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09

2941-48-2, Benzothiazole, 2,5-dichloro- (7CI,8CI,9CI)Related Search:

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