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

MedKoo CAT#: 600125

CAS#: 35825-57-1

Description: Cryptotanshinone is isolated from the root of the Asian medicinal plant, Salvia miotiorrhiza bunge. The compound is a potent STAT3 inhibitor. Cryptotanshinone rapidly inhibited STAT3 Tyr705 phosphorylation through a JAK2-independent mechanism. Cryptotanshinone selectively inhibits STAT3-activated cell lines through binding to monomer STAT3, subsequently blocking the dimerization and inhibiting STAT3 transcriptional regulatory activity. It has been reported in the past that the compound counteracts inflammation through the inhibition of cyclooxygenase II activity and endothelin-1 expression.

Chemical Structure

CAS# 35825-57-1

Theoretical Analysis

MedKoo Cat#: 600125
Name: Cryptotanshinone
CAS#: 35825-57-1
Chemical Formula: C19H20O3
Exact Mass: 296.14124
Molecular Weight: 296.36
Elemental Analysis: C, 77.00; H, 6.80; O, 16.20

Price and Availability

Size Price Availability Quantity
10.0mg USD 175.0 2 Weeks
25.0mg USD 395.0 2 Weeks
50.0mg USD 550.0 2 Weeks
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Synonym: Cryptotanshinon; Tanshinone C.

IUPAC/Chemical Name: (1R)-1,6,6-trimethyl-2,7,8,9-tetrahydro-1H-naphtho[1,2-g][1]benzofuran-10,11-dione


InChi Code: InChI=1S/C19H20O3/c1-10-9-22-18-12-6-7-13-11(5-4-8-19(13,2)3)15(12)17(21)16(20)14(10)18/h6-7,10H,4-5,8-9H2,1-3H3/t10-/m0/s1

SMILES Code: O=C1C(C2=C(OC[C@@H]2C)C3=CC=C4C(C)(C)CCCC4=C13)=O

Appearance: Solid powder

Purity: >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).

Solubility: Soluble in DMSO.

Shelf Life: >2 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).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 296.36 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Huang Y, Li W, Wang CC, Wu X, Zheng J. Cryptotanshinone reverses ovarian insulin resistance in mice through activation of insulin signaling and the regulation of glucose transporters and hormone synthesizing enzymes. Fertil Steril. 2014 Jun 25. pii: S0015-0282(14)00460-9. doi: 10.1016/j.fertnstert.2014.05.012. [Epub ahead of print] PubMed PMID: 24973798.

2: Yuan DP, Long J, Lu Y, Lin J, Tong L. The forecast of anticancer targets of cryptotanshinone based on reverse pharmacophore-based screening technology. Chin J Nat Med. 2014 Jun;12(6):443-8. doi: 10.1016/S1875-5364(14)60069-8. PubMed PMID: 24969525.

3: Ge Y, Yang B, Xu X, Dai Q, Chen Z, Cheng R. Cryptotanshinone acts synergistically with imatinib to induce apoptosis of human chronic myeloid leukemia cells. Leuk Lymphoma. 2014 Jun 25:1-9. [Epub ahead of print] PubMed PMID: 24884318.

4: Yu J, Zhai D, Hao L, Zhang D, Bai L, Cai Z, Yu C. Cryptotanshinone Reverses Reproductive and Metabolic Disturbances in PCOS Model Rats via Regulating the Expression of CYP17 and AR. Evid Based Complement Alternat Med. 2014;2014:670743. doi: 10.1155/2014/670743. Epub 2014 Apr 3. PubMed PMID: 24799941; PubMed Central PMCID: PMC3996859.

5: Cha JD, Lee JH, Choi KM, Choi SM, Park JH. Synergistic Effect between Cryptotanshinone and Antibiotics against Clinic Methicillin and Vancomycin-Resistant Staphylococcus aureus. Evid Based Complement Alternat Med. 2014;2014:450572. doi: 10.1155/2014/450572. Epub 2014 Mar 24. PubMed PMID: 24782909; PubMed Central PMCID: PMC3982256.

6: Zhou J, Xu XZ, Hu YR, Hu AR, Zhu CL, Gao GS. Cryptotanshinone induces inhibition of breast tumor growth by cytotoxic CD4+ T cells through the JAK2/STAT4/ perforin pathway. Asian Pac J Cancer Prev. 2014;15(6):2439-45. PubMed PMID: 24761844.

7: Chen Q, Zhuang Q, Mao W, Xu XM, Wang LH, Wang HB. Inhibitory effect of cryptotanshinone on angiogenesis and Wnt/β-catenin signaling pathway in human umbilical vein endothelial cells. Chin J Integr Med. 2014 Apr 16. [Epub ahead of print] PubMed PMID: 24740553.

8: Chen L, Wang HJ, Xie W, Yao Y, Zhang YS, Wang H. Cryptotanshinone inhibits lung tumorigenesis and induces apoptosis in cancer cells in vitro and in vivo. Mol Med Rep. 2014 Jun;9(6):2447-52. doi: 10.3892/mmr.2014.2093. Epub 2014 Mar 31. PubMed PMID: 24682389.

9: Ma Y, Li H, Yue Z, Guo J, Xu S, Xu J, Jia Y, Yu N, Zhang B, Liu S, Liu M, Shao W, Chen S, Liu P. Cryptotanshinone Attenuates Cardiac Fibrosis via Downregulation of COX-2, NOX-2, and NOX-4. J Cardiovasc Pharmacol. 2014 Jul;64(1):28-37. doi: 10.1097/FJC.0000000000000086. PubMed PMID: 24621647.

10: Park IJ, Yang WK, Nam SH, Hong J, Yang KR, Kim J, Kim SS, Choe W, Kang I, Ha J. Cryptotanshinone induces G1 cell cycle arrest and autophagic cell death by activating the AMP-activated protein kinase signal pathway in HepG2 hepatoma. Apoptosis. 2014 Apr;19(4):615-28. doi: 10.1007/s10495-013-0929-0. PubMed PMID: 24173372.