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840503-69-7

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840503-69-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840503-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,0,5,0 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 840503-69:
(8*8)+(7*4)+(6*0)+(5*5)+(4*0)+(3*3)+(2*6)+(1*9)=147
147 % 10 = 7
So 840503-69-7 is a valid CAS Registry Number.

840503-69-7Downstream Products

840503-69-7Relevant articles and documents

Asymmetric synthesis of (R)-(+)-6-(1,4-dimethoxy-3-methyl-2-naphthyl)-6-(4- hydroxyphenyl)hexanoic acid as a key intermediate for a neurodegenerative disease agent

Ikemoto, Tomomi,Nagata, Toshiaki,Yamano, Mitsuhisa,Ito, Tatsuya,Mizuno, Yukio,Tomimatsu, Kiminori

, p. 7757 - 7760 (2007/10/03)

An asymmetric synthesis of (R)-(+)-6-(1,4-dimethoxy-3-methyl-2-naphthyl)-6- (4-hydroxyphenyl)hexanoic acid 2 as a key intermediate for a neurodegenerative disease agent 1 has been developed. A key reaction was an asymmetric hydrogenation of hindered acryl

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