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1034156-02-9

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1034156-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1034156-02-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,4,1,5 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1034156-02:
(9*1)+(8*0)+(7*3)+(6*4)+(5*1)+(4*5)+(3*6)+(2*0)+(1*2)=99
99 % 10 = 9
So 1034156-02-9 is a valid CAS Registry Number.

1034156-02-9Upstream product

1034156-02-9Relevant articles and documents

Preparation method of high-purity esketamine hydrochloride ketone body

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Paragraph 0062-0063, (2021/02/10)

The invention discloses a preparation method of a high-purity esketamine hydrochloride ketone body. The structure of the esketamine hydrochloride ketone body is shown as a formula (I). The preparationmethod comprises the following steps of: by taking cyclopentanoic acid and o-chlorobromobenzene as starting materials, carrying out acylating chlorination reaction, metallization reaction and Grignard reaction to synthesize the esketamine hydrochloride ketone body. The esketamine hydrochloride ketone body obtained by the method has the characteristics of high purity, high yield, capability of being applied to preparation of esketamine hydrochloride bulk drugs and the like.

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