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1421429-19-7

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1421429-19-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421429-19-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,4,2 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1421429-19:
(9*1)+(8*4)+(7*2)+(6*1)+(5*4)+(4*2)+(3*9)+(2*1)+(1*9)=127
127 % 10 = 7
So 1421429-19-7 is a valid CAS Registry Number.

1421429-19-7Relevant articles and documents

Asymmetric intermolecular conjugate addition of amino acid derivatives via memory of chirality: Total synthesis of manzacidin A

Yoshimura, Tomoyuki,Kinoshita, Tomohiko,Yoshioka, Hiroyasu,Kawabata, Takeo

supporting information, p. 864 - 867 (2013/04/10)

Asymmetric intermolecular conjugate addition of α-amino acid derivatives with 4 via memory of chirality has been developed. The reactions proceeded in up to 98% ee with retention of configuration at the newly formed tetrasubstituted carbon center when R = Me. The product (R = Me) was transformed into manzacidin A.

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