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139200-77-4

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139200-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139200-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,0 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139200-77:
(8*1)+(7*3)+(6*9)+(5*2)+(4*0)+(3*0)+(2*7)+(1*7)=114
114 % 10 = 4
So 139200-77-4 is a valid CAS Registry Number.

139200-77-4Relevant articles and documents

Organic crystal engineering with 1,4-piperazine-2,5-diones. 8. Synthesis, crystal packing, and thermochemistry of piperazinediones derived from 2-amino-4,7-dialkoxyindan-2-carboxylic acids

Wells, Kirk E.,Weatherhead, Robin A.,Murigi, Francis N.,Nichol, Gary S.,Carducci, Michael D.,Selby, Hugh D.,Mash, Eugene A.

, p. 5056 - 5068,13 (2020/09/09)

1,4-Piperazine-2,5-diones possessing C2hmolecular symmetry and bearing four methoxy, ethoxy, butoxy, hexyloxy, octyloxy, nonyloxy, dodecyloxy, or octadecyloxy groups weresynthesized from 2-amino-4,7-dialkoxyindan-2- carboxylic acids. Where poss

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