Download or read book Handbook of Natural Products Data written by Atta-ur- Rahman and published by Elsevier Science & Technology. This book was released on 1990 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the physical characteristics and spectral data of 1500 pentacyclic triterpenes reported until the end of 1990. The compounds are arranged according to their chemical structures in various subclasses, and within each subclass they are arranged in order of increasing molecular weight. The UV, IR, 1 H-NMR and 13 C-NMR and MS spectral data are given in descending orders of magnitude. All &egr values in the UV spectra have been converted to log &egr. The chemical shifts in the 1 H-NMR spectral data are presented in ppm and the chemical shifts in older data published in &tgr values have been converted to &dgr values to ensure uniformity of format. Data are also presented, where available, on simple derivatives of the alkaloids. CAS Registry Numbers are also given.The book is thoroughly indexed, containing a compound index, molecular weight index, molecular formula index, compound type index and plant source index, which should greatly facilitate the task of the reader in searching for individual compounds. A section describing the numbering system concludes the volume. The book will be invaluable for organic chemists, natural product chemists, medicinal chemists and pharmacologists.