UNK

UNKNOWN

UNK is found in 445 entries

UNK in polymers: 436 entries. Examples include: 155C, 1ATI, 1B8D

UNK as free ligands, exist in 12 entries. Examples include 1ML9, 1NF7, 1RQF

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View summary at Ligand Expo

Chemical Component Summary

Name UNKNOWN
Identifiers (2S)-2-aminobutanoic acid
Formula C4 H9 N O2
Molecular Weight 103.12 g/mol
Type L-peptide linking
Isomeric SMILES CC[C@H](N)C(O)=O
InChI InChI=1S/C4H9NO2/c1-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1
InChI Key QWCKQJZIFLGMSD-VKHMYHEASA-N

Chemical Details

Formal Charge 0
Atom Count 16
Chiral Atom Count 1
Chiral Atoms CA
Bond Count 15
Aromatic Bond Count 0
Leaving Atoms OXT H2 HXT