L-乳酸钠-（13-C）3溶液是L-乳酸钠的13 C同位素，由细胞在厌氧糖酵解或增殖过程中产生。严格的运动后，肌肉和血液中L-乳酸钠-（13-C）3的浓度增加了45％-55％。L-乳酸钠-（13-C）3，45％-55％的水溶液也可能存在于肝，肾，胸腺，人类羊水和其他器官/体液中。 应用 L-乳酸-13C3钠盐已用作LC/MS技术定量分析鼠肿瘤组织间液代谢物的内标。L-乳酸钠-13C3 可用作内标物，用于通过滤纸干燥的血斑和之后的LC-MS/MS法定量测定血液乳酸盐和丙酮酸盐。它还可用于研究NAD氧化还原代谢或乳酸盐水平，其有助于开发新的癌症免疫疗法和治疗性免疫抑制。 Sodium L-lactate-(13-C)3 solution is a stable|13|C-isotope of sodium L-lactate , which is produced by cells during anaerobic glycolysis or proliferation. Concentration of Sodium L-lactate-(13-C)3, 45%-55% aqueous solution increases in muscle and blood after rigorous activity. Sodium L-lactate-(13-C)3, 45%-55% aqueous solution may also be found in liver, kidney, thymus gland, human amniotic fluids, and other organ/body fluids.