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ACD/Labs Blog

Baljit Bains
The highly coveted Gaussian peak, a sharp symmetrical shape on a flat baseline, is the ideal peak shape in chromatography. Why is it so highly desired? Naturally, we tend to be drawn to the beauty of symmetry, but more importantly, good peak shape is important for better resolution (Rs) and increased accuracy in quantitation.

Mikhail Elyashberg
The herb Radix Glycyrrhizae has been used as a traditional Chinese medicine for more than a thousand years. Zhao et al isolated a novel symmetrical cyclooctenone compound and elucidated its structure (molecular formula C23H34O4).

Mikhail Elyashberg
Okpekon et al isolated an unusual new indanone from the shrub Uvaria afzelii Scot Elliot, grown in the West African sub-region, named afzeliindanone. The molecular formula is C16H14O3.

Mikhail Elyashberg
A new bicoumarin derivative, bidysoxyletine, (with a molecular formula of C36H40O6) was isolated from the leaves of Dysoxylum parasiticum (Osbeck) Kosterm.

Mikhail Elyashberg
A series of new phenazines were isolated and their structures elucidated; one of these compounds was Dermacozine O, with a molecular formula of C23H15O4N3.

Mikhail Elyashberg
The analysis of C. rotalaria extracts by UHPLC-MS in conjunction with database searching led to the isolation and structure elucidation of a series of new taurine-conjugated anthraquinones, including Comatulin A, molecular formula C20H19NO10S.

Sarah Srokosz
Interpreting the pattern of lines on a mass spectrum may feel overwhelming at first glance. However, with a little background knowledge of the theory behind mass spectrometry techniques, you can begin to recognize what to look for in your mass spectrum and obtain the information you need. Read more about how ACD/Labs analytical data processing tools can help.

Mikhail Elyashberg
A rich source of cembrane-type metabolites has been found to be Lobophytum crassum, a soft coral from the family of Alcyoniidae. Among five new cembrane derivatives that were isolated is Lobocrassin A, molecular formula C20H29ClO4.

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