[N-[(1S,2S)-2-(Amino-κN)-1,2-diphenylethyl]-4-methylbenzenesulfonamidato(2-)-κN][(1,2,3,4,5,6-η)-1-methyl-4-(1-methylethyl)benzene]ruthenium is a coordination compound used in the synthesis of Resolvin E1 Sodium Salt (R144690), which is an omega-3 polyunsaturated fatty acid derivative that exhibits potent anti-inflammatory, pro-resolution, and anti-nociceptive effects. Resolvin E1 has been shown to inhibit neuropathic pain and spinal cord microgial activation following peripheral nerve injury.