## Abstract Several __N__,__N__′‐dipyridyl‐ and __N__‐phenyl‐__N__′‐pyridyl‐thioureas were examined in different solvents at various temperatures by ^1^H NMR in order to study their conformational properties. The influence of concentration and the methyl substituent in the pyridine ring on the chem
✦ LIBER ✦
Parthenolide Content of Feverfew (Tanacetum parthenium) Assessed by Hplc and 1 H-nmr Spectroscopy
✍ Scribed by Awang, Dennis V. C.; Dawson, Brian A.; Kindack, Daryl G.; Crompton, Cliff W.; Heptinstall, Stan
- Book ID
- 121210226
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 432 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0163-3864
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