On September 6, Nanjing Chemical Industry Co., Ltd.'s quote for phenanthrene is 7800 yuan/ton. The specifications of phenanthrene include: phenanthrene mass fraction /% ≥: 99.4; dry crystal point /℃ ≥: -6.6; moisture mass fraction /% ≤: 0.1. The validity period of this quote is 3 days. The quote provider is Shandong Yeyang Chemical Co., Ltd.