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152294-13-8

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152294-13-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 152294-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,2,9 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 152294-13:
(8*1)+(7*5)+(6*2)+(5*2)+(4*9)+(3*4)+(2*1)+(1*3)=118
118 % 10 = 8
So 152294-13-8 is a valid CAS Registry Number.

152294-13-8Relevant articles and documents

Preparation method of 3-substituted dimethyl glutarate and dimethyl glutaconate

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Paragraph 0028-0030, (2018/09/08)

The invention relates to the field of fine chemical engineering, and particularly relates to a preparation method of 3-substituted dimethyl pentodiate and pentene diester. According to the preparationmethod of 3-substituted dimethyl pentodiate and pentene diester, malonic ester and halomethane are used as raw materials, substitution reaction is performed under an alkaline action, then decarboxylation and esterification reaction are performed so as to prepare 3-substituted dimethyl pentodiate or pentene diester, a structural formula of 3-substituted dimethyl pentodiate is as shown in a compound (V), and a structural formula of pentene diester is as shown in a compound (IX). The preparation method of 3-substituted dimethyl pentodiate and pentene diester is mild in reaction conditions, is easy to operate and is safe. The formula is shown in the description.

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