13C NMR Matching

Match experimental 13C chemical shifts against our comprehensive database. Supports both standard 13C and DEPT-type (s/d/t/q) spectra.

Auto-detected: 13C or 13C-type
Go to 13C-DEPT tool Go to cluster draw

Experimental Data

Tip: Type "s:" for singlet, "d:" for doublet, etc. to enable 13C-type mode

Filter Criteria

Support multiple ranges
Support multiple ranges
Comma-separated

Algorithm Parameters

≤3 recommended
≥50% recommended
Only when equivalent carbons enabled

NP Classifier Filters

Alkaloids
Flavonoids
Terpenoids
Polyketides
Amino acids
Organic acids
Lipids
Phenylpropanoids
Saccharides

Element & Fragment Filters

only CHO
N
P
S
Cl
Br
other
CH3-C
CH3-CH
CH3-CH2
CH3-O
CH3-N
CH3-C=0
(CH3)2
CH3-Ring
CH3-Ar
CH2-CH2
CH2-CH
CH2-C
CH2-O
CH2-N
CH2-Ring
CH2-Ar
CH2-C=C
CH-CH
CH-C
CH-O
CH-N
CH-Ring
CH-Ar
C-O
C-N
CH2=CH
CH-CH
CH=C
C=C
C≡C
C≡N
C=N
Ar-H
Ar-OH
Ar-O
Ar-N
Ar-X
Ar-C=O
Ar-fused
C-O-C
O-C-O
CHO
C=O
COOH
COOR
C-NH2
C-NH-C
(C)3-N
-CON-
-SH
C-S-C
C-X
-NO-
Ring_3
Ring_4
Ring_5
Ring_6
Ring_7
Ring_8
Ring_9
Ring_10
Ring_big
Ring_N
Ring_O
Ring_S
Ring_fused
Sugar_ring
Alkaloid_N
Lactone
Lactam
C=C-OH
C=C-C=O
C=C-C=C

Substructure / Similarity Search

Enter one SMILES per line
How to combine multiple SMILES
Enter one SMILES per line
Tanimoto coefficient

Advanced Options

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