NH4 Ligand Summary Page - RCSB PDB

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247,086Structures from the PDB archive 1,068,577Computed Structure Models (CSM)

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Data API NH4

AMMONIUM ION

Created:	1999-07-08
Last modified:	2024-09-27

Find Related PDB Entry
323 entries where NH4 is found as a standalone ligand3 entries where NH4 is covalently linked to polymer or other heterogen groups

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Chemical Details
Formal Charge	1
Atom Count	5
Chiral Atom Count	0
Bond Count	4
Aromatic Bond Count	0

Toggle HydrogenToggle Labels

Chemical Component Summary
Name	AMMONIUM ION
Systematic Name (OpenEye OEToolkits)	azanium
Formula	H4 N
Molecular Weight	18.038
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	10.04	[NH4+]
SMILES	CACTVS	3.341	[NH4+]
SMILES	OpenEye OEToolkits	1.5.0	[NH4+]
Canonical SMILES	CACTVS	3.341	[NH4+]
Canonical SMILES	OpenEye OEToolkits	1.5.0	[NH4+]
InChI	InChI	1.03	InChI=1S/H3N/h1H3/p+1
InChIKey	InChI	1.03	QGZKDVFQNNGYKY-UHFFFAOYSA-O

Related Resource References

Resource Name	Reference
PubChem	223, 16741146
ChEBI	CHEBI:28938, CHEBI:29352
CCDC/CSD	AMFORM01, AGACET02, AGACET01, AGACET03, AFUQID, AMCLAN11, AGACET, AHAKAX, AHTPAL01, AHILAE, AHOXLH, AHCNPI, ADAJUL, ALAMEF, AHAKEB, ADENAY, AMBARB01, AHOXLH05, ACARBM02, AKEKUY, ACARBM01, AMCYME01, AJARAF, AHAJUQ, AMDFAC, AHTPAL03, ABULOZ, AGLYSL01, AHPHAL01, AMFORM, AMACAM, AHTPAL02, AHOXLH02, AHTPAL, AGLYSL, ACARBM, AMACAM01, AMACET, AIPMLM, AKAXIW, AHPHAL02

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