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28989-25-5

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28989-25-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28989-25-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,8 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28989-25:
(7*2)+(6*8)+(5*9)+(4*8)+(3*9)+(2*2)+(1*5)=175
175 % 10 = 5
So 28989-25-5 is a valid CAS Registry Number.
InChI:InChI=1/C10H4Cl2N2S/c11-8-4-2-1-3-6(8)9-7(5-13)10(12)14-15-9/h1-4H

28989-25-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-Chloro-5-(2-chlorophenyl)-1,2-thiazole-4-carbonitrile

1.2 Other means of identification

Product number -
Other names 3-chloro-5-(2-chlorophenyl)isothiazole-4-carbonitrile

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:28989-25-5 SDS

28989-25-5Relevant articles and documents

Regiospecific Suzuki coupling of 3,5-dichloroisothiazole-4-carbonitrile

Christoforou, Irene C.,Koutentis, Panayiotis A.,Rees, Charles W.

, p. 2900 - 2907 (2007/10/03)

3,5-Dichloroisothiazole-4-carbonitrile 1 reacts with aryl- and methylboronic acids to give in high yields the 3-chloro-5-(aryl and methyl)-isothiazole-4-carbonitrile 2 regiospecifically. The reaction was optimized with respect to base, phase transfer agent and palladium catalyst. Suzuki coupling at C-5 was also achieved in high yield using potassium phenyltrifluoroborate. The regiospecificity of either coupling method is maintained with 3,5-dibromoisothiazole-4-carbonitrile 4 to give exclusively 3-bromo-5-phenylisothiazole-4-carbonitrile 5. Suzuki cross-coupling conditions applied to 3-chloro-5-phenylisothiazole-4-carbonitrile 2a gave 3-phenoxy-5-phenylisothiazole-4-carbonitrile 6, which was prepared independently, and not the 3-phenyl derivative. All isothiazole products were fully characterized.

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