Natural Product NMR-DB "CH-NMR-NP"

Introduction to CH-NMR-NP system

The 13C/1H-NMR database for natural products [CH-NMR-NP] is mainly composed of natural products that were published in major journals in the years between 2000 and the spring of 2014. For a natural product to be included in the database, complete 13C-NMR data was a strict precondition. No such precondition was set for 1H and as a result some compounds show incomplete 1H-NMR data. As it concerns a database, CH-NMR-NP lacks completeness.
The number of the compounds in natural products compiled from the published papers is about 29,500. Additionally, about 6,000 organic compounds with 1H/13C spectral patterns were compiled from SDBS-NMR, and the total number of the compounds is approximately 35,500.
©Kikuko Hayamizu

The JEOL Ltd. nor Dr. Hayamizu assume no responsibility whatsoever for any direct or indirect damage, loss, prejudice or emotional distress caused by use of 'CH-NMR-NP'.

NMR Database Search

Basic Information

Example: Pseudoanchynazine / Pseudo*zine*
Example: C21-23 H18 N4 O5
Molecular Formula

Example: C15H18BrS2
Molecular Weight

Example: 545 / 545 - 558
13C Chemical Shift
± Allowance / ppm
Similarity ≥ % Example: 40, 41, 71 ± 2

13C No Signal Region
to ppm
Example: 40 to 41 ppm
Structure Search
To search a partial structure, please check the box and draw a partial structure on the molecular editor at the bottom of the page. Please see page 6 in the instruction manual if the structure search doesn't work well.
NP No.

Example: 15 / 30 - 100
CAS Registry No.

Example: 59392-53-9 / 5932-*
Enable Detailed Search