Qingdao Sigma Chemical Co., Ltd.
Country: China (Mainland)
Business Type: Trading Company
High Quality Poly(3-hexylthiophene-2,5-diyl)CAS NO.: 104934-50-1
High Quality 4H-Thieno[2,3-b]thiopyran-4-one,5,6-dihydro-6-methyl-, (6S)CAS NO.: 147086-79-1
High Quality 3-DIMETHYLAMINOPROPYL CHLORIDE HYDROCHLORIDECAS NO.: 1281-00-1