In powder X-ray diffraction, water of compound 1 having diffraction peaks at diffraction angles (2θ ± 0.2 °) of 10.7 °, 10.9 °, 14.4 °, 19.1 ° and 22.8 ° Crystal of Japanese product, Compound 1 or water thereof having diffraction peaks at diffraction angles (2θ ± 0.2 °) of 7.2 °, 8.9 °, 13.2 °, 16.4 ° and 22.4 ° Crystal of Japanese product, Anhydrous compound 1 having diffraction peaks at diffraction angles (2θ ± 0.2 °) of 10.3 °, 14.2 °, 14.6 °, 16.1 ° and 22.1 ° And 1 or its water having diffraction peaks at diffraction angles (2θ ± 0.2 °) of 7.3 °, 10.7 °, 16.3 °, 19.8 ° and 23.8 ° Japanese crystals are provided.粉末Ｘ線回折において、回折角度（２θ±０．２°）１０．７°、１０．９°、１４．４°、１９．１°および２２．８°に回折ピークを有する、化合物１の水和物の結晶、回折角度（２θ±０．２°）７．２°、８．９°、１３．２°、１６．４°および２２．４°に回折ピークを有する、化合物１またはその水和物の結晶、回折角度（２θ±０．２°）１０．３°、１４．２°、１４．６°、１６．１°および２２．１°に回折ピークを有する、化合物１の無水物の結晶、ならびに、回折角度（２θ±０．２°）７．３°、１０．７°、１６．３°、１９．８°および２３．８°に回折ピークを有する、化合物１またはその水和物の結晶を提供する。
