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98029-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98029-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,0,2 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 98029-44:
158 % 10 = 8
So 98029-44-8 is a valid CAS Registry Number.

98029-44-8Downstream Products

98029-44-8Relevant articles and documents

Ion liquid in the application in the preparation of bromoethane


Paragraph 0048; 0049; 0052-0054, (2017/05/02)

The invention discloses application of an ionic liquid in bromoethane preparation, belonging to the fields of green chemistry and new materials. Under the action of the ionic liquid, hydrobromic acid and ethanol are subjected to substitution reaction; and after the reaction finishes, after-treatment is performed to obtain the bromoethane. The ionic liquid is composed of cations X and anions Y, wherein the cations are imidazole, pyridine, pyrrolidone and other cations containing nitrogen heterocyclic ring, and the anions are various functionalized anions with catalytic action. The ionic liquid is used for preparing the bromoethane, thereby avoiding using the traditional concentrated sulfuric acid, enhancing the reaction efficiency, avoiding generating waste acid and being beneficial to environmental protection. The ionic liquid can be recovered, and is a high-efficiency green synthesis means.

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