- Sorbitol（50-70-4）Hebei Huanchang Metallurgical Materials Co., Ltd.
- Suvorexant（1030377-33-3） Hubei Aladdin Technology Industry Co.,Ltd
- Salicylic acid（69-72-7）Hebei Huanchang Metallurgical Materials Co., Ltd.
- Spironolactone（52-01-7） Hubei Aladdin Technology Industry Co.,Ltd
- Succinic anhydride（108-30-5）Puyang Huicheng Electronic Material Co., Ltd
- Spiro[fluorene-9,9'-xanthene]（159-62-6）Puyang Huicheng Electronic Material Co., Ltd
- Succinic anhydride（108-30-5）Puyang Huicheng Electronic Material Co., Ltd
- S-(-)-1,1'-联萘-2,2'-双二苯膦（76189-56-5）Puyang Huicheng Electronic Material Co., Ltd
