Wikipedia:  

L(-)-Carnitine

Ammonium, (3-carboxy-2-hydroxypropyl)trimethyl-, hydroxide, inner salt, L-; 1-Propanaminium, 3-carboxy-2-hydroxy-N,N,N-trimethyl-, inner salt, (2R)-; L-Carnitine; 1-Propanaminium, 3-carboxy-2-hydroxy-N,N,N-trimethyl-, hydroxide, inner salt, (R)-; (R)-(3-Carboxy-2-hydroxypropyl)trimethylammonium hydroxide; gamma-Trimethyl-beta-hydroxybutyrobetaine; Vitamin BT; (3-Carboxy-2-hydroxypropyl)trimethyl-ammonium hydroxide, inner salt; 1-Propanaminium, 3-carboxy-2-hydroxy-N,N,N-trimethyl-, inner salt, (R)-; Levocarnitine [USAN:INN]; 3-Carboxy-2-hydroxy-N,N,N-trimethyl-1-propanaminium hydroxide, inner salt
Molecular Formula
C7 H15 N O3
Natural Isotopic Abundance Mass
161.1989000000
Mono-Isotopic Molecular Masses
C12N14:   161.105193353
C13N14:   168.128677218
C12N15:   162.102228246
C13N15:   169.1257121108
L(-)-Carnitine image
L(-)-Carnitine
InCHi String:
InChI=1S/C7H15NO3/c1-8(2,3)5-6(9)4-7(10)11/h6,9H,4-5H2,1-3H3/t6-/m1/s1

isomeric SMILES:
C[N+](C)(C)C[C@@H](CC(=O)[O-])O
canonical SMILES:
C[N+](C)(C)CC(CC(=O)[O-])O


IUPAC: IUPAC traditional: IUPAC cas: IUPAC openeye: IUPAC systematic
(3R)-3-hydroxy-4-trimethylammonio-butanoate



PubChem Substance (SID):   85165027   154219   854194
PubChem Compound (CID):   10917
KEGG: Compound ID   C13951
CAS Registry IDs:   541-15-1   7634-98-2
PDB Chemical Component   152
Miscellaneous Databases and IDs:   EINECS 208-768-0

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.