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. Natural products from published papers and 926 natural product-related compounds from SDBS-NMR were combined to create a 13C/1H-NMR database of approximately 30,500 natural products.
©Kikuko Hayamizu

The JEOL RESONANCE Inc. 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'.
Please note that required information (name, affiliation, country, email) has to be submitted once to use all functions.

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
NP No.

Example: 15 / 30 - 100
CAS Registry No.

Example: 59392-53-9 / 5932-*
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