Nolvadex Raw Powder Tamoxifen without Citrate Nolvadex or Tamoxifen no Citrate Tamoxifen Base not Tamoxifen Citrate. CAS-Nummer: 10540-29-1 Molekularformel: C26H29NO Molecular weight: 371.51 EINECS-Nummer: 234-118-0 What is Tamoxifen Citrate (Nolvadex) ? Nolvadex, officially known as Tamoxifen Citrate, was first developed in 1961 by ICI now AstraZeneca under the trade name Nolvadex. The SERM was developed to treat breast cancer, specifically hormone-responsive …