A1DO4

(3R)-3-(thiophen-2-yl)piperazin-2-one

Created:	2026-07-23
Last modified:	2026-08-05

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1 entries where A1DO4 is found as a standalone ligand

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Chemical Details
Formal Charge	0
Atom Count	22
Chiral Atom Count	1
Bond Count	23
Aromatic Bond Count	5

2D diagram of A1DO4

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Chemical Component Summary
Name	(3R)-3-(thiophen-2-yl)piperazin-2-one
Systematic Name (OpenEye OEToolkits)	(3~{R})-3-thiophen-2-ylpiperazin-2-one
Formula	C₈ H₁₀ N₂ O S
Molecular Weight	182.243
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=C1NCCNC1c1cccs1
SMILES	CACTVS	3.385	O=C1NCCN[CH]1c2sccc2
SMILES	OpenEye OEToolkits	3.1.0.0	c1cc(sc1)C2C(=O)NCCN2
Canonical SMILES	CACTVS	3.385	O=C1NCCN[C@H]1c2sccc2
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	c1cc(sc1)[C@H]2C(=O)NCCN2
InChI	InChI	1.06	InChI=1S/C8H10N2OS/c11-8-7(9-3-4-10-8)6-2-1-5-12-6/h1-2,5,7,9H,3-4H2,(H,10,11)/t7-/m0/s1
InChIKey	InChI	1.06	BBACKDMGYMXYLE-ZETCQYMHSA-N

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.