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159484-66-9

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159484-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159484-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,4,8 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 159484-66:
(8*1)+(7*5)+(6*9)+(5*4)+(4*8)+(3*4)+(2*6)+(1*6)=179
179 % 10 = 9
So 159484-66-9 is a valid CAS Registry Number.

159484-66-9Relevant articles and documents

A preparation method of Ranolazine

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Paragraph 0038; 0041; 0044; 0046; 0048; 0050; 0052, (2019/03/28)

The present invention relates to the technical field of ranolazine, in particular to a ranolazine preparation method, the method comprises the following steps: piperazine through the hydroformylation reaction to obtain the 1 - formyl piperazine, then with 2 - chloro - N - (2, 6 - dimethyl-phenyl) acetamide for carrying out the alkylation reaction to obtain N - (2, 6 - dimethyl-phenyl) - 2 - (4 - formyl piperazine) acetamide, then through hydrolytic reaction to obtain N - (2, 6 - dimethyl-phenyl) - 2 - (1 - piperazinyl) acetamide, finally with 2 - (2 - methyl-phenoxymethyl) oxirane ring opening reaction to obtain the ranolazine. The invention preparation of the ranolazine purity is good, high yield.

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