Spectral Similarity Search with Ranking:


Enter CARBON chemical shift value (ppm) and MULTIPLICITY of your signals:

Allowed chemical shift range for 13C-signals is between -399.0 and +399.0 ppm

s = singulet ( Cquat ), d = doublet ( CH ), t = triplet ( CH2 ), q = quartet ( CH3 ),
e = even ( CH or CH3 ), o = odd ( Cquat or CH2 ) , ? = unknown ( any type )

Couplings to other nuclei than protons (e.g. 31P, 19F) are ignored - enter only the shift values !
e.g. a CF3-group should be given as "122.8 s 2.5"

Deviation: 1.0 to 5.0 ppm allowed, useful values are somewhere around 3 ppm

Linenumber  Chemical Shift (ppm)     Multiplicity        Deviation (ppm)      
As an alternative: Copy/Paste peaklist
  Shiftvalue [ Multiplicity [ Deviation ]]; one per line
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Global pattern of
reference-spectrum:
     No other significant lines            Other significant lines allowed      

Molecular weight from      to       Use constraint for display only
  Use constraint already during search
Number of signals from      to    

  N  O  P F  Cl  Br
other
Element must be absent:                                               
Element may be present:                                               
Element must be present:                                               

Email for receiving result:      
Name of Project:      
Name of Peaklist: