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1390642-19-9

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1390642-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1390642-19-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,0,6,4 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1390642-19:
(9*1)+(8*3)+(7*9)+(6*0)+(5*6)+(4*4)+(3*2)+(2*1)+(1*9)=159
159 % 10 = 9
So 1390642-19-9 is a valid CAS Registry Number.

1390642-19-9Downstream Products

1390642-19-9Relevant articles and documents

Mild construction of 3-methyl tetramic acids enabling a formal synthesis of palau'imide

Bai, Wen-Ju,Jackson, Stephen K.,Pettus, Thomas R. R.

, p. 3862 - 3865 (2012/09/22)

A general method to construct 3-methyl-4-O-methylated tetramic acids displaying a C-5 stereocenter is presented. The synthetic sequence employs a SmI2-mediated cyclization, whereby the chirality of the emerging tetramic acid core is retained from the starting chiral amino acid. Application to palau'imide is discussed.

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