Provided are an acid addition salt of (+)-2-[(inden-7-yloxy)methyl]morpholine (compound A) and a novel crystal thereof, which are for use as a medicament or a drug substance, and which has high storage stability, particularly high stability against humidity and light. An acid addition salt of the compound A with an acid selected from benzenesulfonic acid and hydrobromic acid is a compound which is isolated in the form of a crystal, is a solid at room temperature, exhibits no hygroscopicity at such a level that causes a problem for use as a medicament or a drug substance, has stability against humidity and light, and is therefore extremely useful as a medicament or a drug substance.
提供一种(+)-2-[(
茚七氧基)甲基]
吗啡啶(化合物A)的酸加成盐及其新型晶体,用作药物或药物物质,具有高储存稳定性,尤其是高湿度和光稳定性。化合物A与
苯磺酸和
氢溴酸等酸的酸加成盐是一种以晶体形式分离出来的化合物,它在室温下是固体,不具有吸湿性,可用作药物或药物物质,对湿度和光稳定性具有稳定性,因此非常有用。