WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 202900

CAS#: 518-34-3

Description: Tetrandrine is a bisbenylisoquinoline alkaloid isolated from the dried root of Stephenia tetrandra S Moore. Tetrandrine exhibits very broad pharmacological actions, including anti-tumor activity. The beneficial effects of tetrandrine on tumor cell cytotoxicity and radiosensitization, multidrug resistance, normal tissue radioprotection, and angiogenesis are most promising and deserve great attention. Tetrandrine has potential either as a tumoricidal agent or as an adjunct to chemotherapy and radiotherapy.

Price and Availability


USD 190
USD 950

USD 350
USD 1750

USD 550

Tetrandrine, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received. Delivery time: overnight (USA/Canada); 3-5 days (worldwide). Shipping fee: from $30.00 (USA); from $45.00 (Canada); from $70.00 (international).

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 202900
Name: Tetrandrine
CAS#: 518-34-3
Chemical Formula: C38H42N2O6
Exact Mass: 622.30429
Molecular Weight: 622.75
Elemental Analysis: C, 73.29; H, 6.80; N, 4.50; O, 15.41

Synonym: Tetrandrine; Fanchinine; NSC 77037; Sinomenine A; d-tetrandrine; (S,S)-(+)-tetrandrine; TTD.

IUPAC/Chemical Name: (11S,31S)-16,36,37,54-tetramethoxy-12,32-dimethyl-11,12,13,14,31,32,33,34-octahydro-2,6-dioxa-1(7,1),3(8,1)-diisoquinolina-5(1,3),7(1,4)-dibenzenacyclooctaphane


InChi Code: InChI=1S/C38H42N2O6/c1-39-15-13-25-20-32(42-4)34-22-28(25)29(39)17-23-7-10-27(11-8-23)45-33-19-24(9-12-31(33)41-3)18-30-36-26(14-16-40(30)2)21-35(43-5)37(44-6)38(36)46-34/h7-12,19-22,29-30H,13-18H2,1-6H3/t29-,30-/m0/s1

SMILES Code: COC1=C(C2=C(C=C1OC)CCN(C)[C@]2(C3)[H])OC4=CC5=C(C=C4OC)CCN(C)[C@]5(CC6=CC=C(OC7=CC3=CC=C7OC)C=C6)[H]

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:

Additional Information

Tetrandrine a bis-benzylisoquinoline alkaloid, is a calcium channel blocker. It has anti-inflammatory, immunologic and antiallergenic effects. It inhibits the degranulation of mast cells. It has a "Quinidine like" anti-arrhythmic effect. It has been isolated from Stephania tetrandra S Moore,  and other Chinese and Japanese herbs. It has vasodilatory properties and can therefore reduce blood pressure. Tetrandrine may have potential use for the treatment of liver disease and liver cancer.  Tetrandrine has potential therapeutic value to prevent excess scarring/fibrosis in conjunctiva following trabeculectomy or in patients with severe conjunctival inflammation. Tetrandrine has anti-inflammatory and anti-fibrogenic actions, which make tetrandrine and related compounds potentially useful in the treatment of lung silicosis, liver cirrhosis, and rheumatoid arthritis.  (source: http://en.wikipedia.org/wiki/Tetrandrine).


1: Chen Y, Tsai YH, Tseng SH. The potential of tetrandrine as a protective agent for ischemic stroke. Molecules. 2011 Sep 16;16(9):8020-32. doi: 10.3390/molecules16098020. Review. PubMed PMID: 21926947.

2: Chen Y, Tseng SH. The Potential of Tetrandrine against Gliomas. Anticancer Agents Med Chem. 2010 Sep;10(7):534-42. Review. PubMed PMID: 20879981.

3: Wang G, Lemos JR, Iadecola C. Herbal alkaloid tetrandrine: fron an ion channel blocker to inhibitor of tumor proliferation. Trends Pharmacol Sci. 2004 Mar;25(3):120-3. Review. PubMed PMID: 15058281.

4: Chen BA, Wang W, Lin GW. [Progression on studies of treatment of tumor with tetrandrine]. Zhongguo Zhong Xi Yi Jie He Za Zhi. 2001 Aug;21(8):636-8. Review. Chinese. PubMed PMID: 12575583.

5: Xie QM, Tang HF, Chen JQ, Bian RL. Pharmacological actions of tetrandrine in inflammatory pulmonary diseases. Acta Pharmacol Sin. 2002 Dec;23(12):1107-13. Review. PubMed PMID: 12466048.

6: Chen YJ. Potential role of tetrandrine in cancer therapy. Acta Pharmacol Sin. 2002 Dec;23(12):1102-6. Review. PubMed PMID: 12466047.

7: Lai JH. Immunomodulatory effects and mechanisms of plant alkaloid tetrandrine in autoimmune diseases. Acta Pharmacol Sin. 2002 Dec;23(12):1093-101. Review. PubMed PMID: 12466046.

8: Rao MR. Effects of tetrandrine on cardiac and vascular remodeling. Acta Pharmacol Sin. 2002 Dec;23(12):1075-85. Review. PubMed PMID: 12466044.

9: Yao WX, Jiang MX. Effects of tetrandrine on cardiovascular electrophysiologic properties. Acta Pharmacol Sin. 2002 Dec;23(12):1069-74. Review. PubMed PMID: 12466043.

10: Kwan CY, Achike FI. Tetrandrine and related bis-benzylisoquinoline alkaloids from medicinal herbs: cardiovascular effects and mechanisms of action. Acta Pharmacol Sin. 2002 Dec;23(12):1057-68. Review. PubMed PMID: 12466042.

11: Li DG, Wang ZR, Lu HM. Pharmacology of tetrandrine and its therapeutic use in digestive diseases. World J Gastroenterol. 2001 Oct;7(5):627-9. Review. PubMed PMID: 11819843.

12: Wong TM, Wu S, Yu XC, Li HY. Cardiovascular actions of Radix Stephaniae Tetrandrae: a comparison with its main component, tetrandrine. Acta Pharmacol Sin. 2000 Dec;21(12):1083-8. Review. PubMed PMID: 11603280.

13: Leung YM, Kwan CY, Loh TT. Capacitative Ca2+ entry in HL-60 cells: tetrandrine and SK & F 96365 as probes. Zhongguo Yao Li Xue Bao. 1996 Mar;17(2):97-101. Review. PubMed PMID: 9772652.

14: Wang G, Lemos JR. Tetrandrine: a new ligand to block voltage-dependent Ca2+ and Ca(+)-activated K+ channels. Life Sci. 1995;56(5):295-306. Review. PubMed PMID: 7837929.