9,10-Secocholesta-(5Z)-5,8(14),10(19)-triene-3β-ol and 18-Nor-14β-methyl-9,10-secocholesta-(5E)-5,10(19),13(17)-trien-3β-ol, two new double bond isomers of vitamin D3. Structural modifications of vitamin D3: 5. Communication

R&D Labs maybe for 22350-43-2

• Antaeus Bio-technology Co., LTD(expird)

  Contact:021-31252569

  Address:shanghai pudong

• Suzhou ATL Chemical Co.,ltd

  Contact:+86-0512-69209969

  Address:Room 317,Lushan Road,Suzhou New District,Jiangsu Province,China.

• Dongying J&M Chemical Co., Ltd,

  Contact:546-8551108

  Address:Room 1219, Zisheng Mansion, Zibo Road, Dongying, Shandong, China

• Henan zhongda Biological Engineering Co., Ltd

  Contact:86-28-18109029985

  Address:shenzhou road,xuedian industrial estate,zhengzhou city,henan province CHN

• Chongqing Changfeng Chemical Co., Ltd.

  website:http://www.changfengchem.com

  Contact:+86-23-67896333

  Address:30th Floor, Longhu Ziduxingzuo Building A, 1st Branch,YuSong Rd., Yubei District, Chongqing, China