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158665-23-7

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158665-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158665-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,6,6 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 158665-23:
(8*1)+(7*5)+(6*8)+(5*6)+(4*6)+(3*5)+(2*2)+(1*3)=167
167 % 10 = 7
So 158665-23-7 is a valid CAS Registry Number.

158665-23-7Downstream Products

158665-23-7Relevant articles and documents

OPTICALLY ACTIVE VINYL-CYCLOPROPANE CARBOXYLIC ACID DERIVATIVE AND OPTICALLY ACTIVE VINYL-CYCLOPROPANE AMINO ACID DERIVATIVE MANUFACTURING METHOD

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Page/Page column 11, (2011/08/04)

The objective of the present invention is to provide a method for obtaining an optically active vinylcyclopropanecarboxylic acid derivative with high yield and high optical purity using a safe material available at low cost. In addition, the objective of the present invention is to provide a method for safely-obtaining an optically active vinylcyclopropaneamino acid with high optical purity at low cost. The problems can be solved by a method for obtaining an optically active vinylcyclopropanecarboxylic acid derivative, which method contains the step of reacting a racemic vinylcyclopropanecarboxylic acid derivative with an optically active amine compound, to obtain a diastereomer salt of optically active vinylcyclopropanecarboxylic acid derivative - amine compound. In addition, it is possible to obtain a vinylcyclopropaneamino acid by deriving the vinylcyclopropaneamino acid from thus obtained diastereomer salt of optically active vinylcyclopropanecarboxylic acid derivative - amine compound.

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