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    1,2-Didehydrotanshinone IIA
    Information
    CAS No. 119963-50-7 Price
    Catalog No.CFN92165Purity> 95%
    Molecular Weight292.3Type of CompoundDiterpenoids
    FormulaC19H16O3Physical DescriptionRed powder
    Download     COA    MSDS    SDFSimilar structuralComparison (Web)
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    1,2-Didehydrotanshinone IIA Description
    Source: The roots of Salvia miltiorrhiza
    Biological Activity or Inhibitors: 1. 1,2-Didehydrotanshinone IIA shows inhibitory effects against acetyl- (AChE) and butyrylcholinesterase (BChE).
    2. 1,2-Didehydrotanshinone IIA possesses metal-chelation capacity.
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

    After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.4211 mL 17.1057 mL 34.2114 mL 68.4229 mL 85.5286 mL
    5 mM 0.6842 mL 3.4211 mL 6.8423 mL 13.6846 mL 17.1057 mL
    10 mM 0.3421 mL 1.7106 mL 3.4211 mL 6.8423 mL 8.5529 mL
    50 mM 0.0684 mL 0.3421 mL 0.6842 mL 1.3685 mL 1.7106 mL
    100 mM 0.0342 mL 0.1711 mL 0.3421 mL 0.6842 mL 0.8553 mL
    * Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
    1,2-Didehydrotanshinone IIA References Information
    Citation [1]

    Phytochemistry. 2017 Jan;133:33-44.

    Selective in vitro and in silico butyrylcholinesterase inhibitory activity of diterpenes and rosmarinic acid isolated from Perovskia atriplicifolia Benth. and Salvia glutinosa L.[Pubmed: 27817931 ]
    Cholinesterase inhibition is one of the most treatment strategies against Alzheimer's disease (AD) where metal accumulation is also strongly associated with pathology of the disease. In the current study, we assessed inhibitory effect against acetyl- (AChE) and butyrylcholinesterase (BChE) and metal-chelating capacity of twelve diterpenes: arucadiol, miltirone, tanshinone IIa, 1-oxomiltirone, cryptotanshinone, 1,2-didehydromiltirone, 1,2-Didehydrotanshinone IIA, 1β-hydroxycryptotanshinone, 15,16-dihydrotanshinone, tanshinone I, isotanshinone II, 1(S)-hydroxytanshinone IIa, and rosmarinic acid, isolated from Perovskia atriplicifolia and Salvia glutinosa. The compounds were tested at 10 μg/mL using ELISA microtiter assays against AChE and BChE. QSAR and molecular docking studies have been also performed on the active compounds. All of the compounds showed higher [e.g., IC50 = 1.12 ± 0.07 μg/mL for 1,2-didehydromiltirone, IC50 = 1.15 ± 0.07 μg/mL for cryptotanshinone, IC50 = 1.20 ± 0.03 μg/mL for arucadiol, etc.)] or closer [1,2-Didehydrotanshinone IIA (IC50 = 5.98 ± 0.49 μg/mL) and 1(S)-hydroxytanshinone IIa (IC50 = 5.71 ± 0.27 μg/mL)] inhibition against BChE as compared to that of galanthamine (IC50 = 12.56 ± 0.37 μg/mL), whereas only 15,16-dihydrotanshinone moderately inhibited AChE (65.17 ± 1.39%). 1,2-Didehydrotanshinone IIA (48.94 ± 0.26%) and 1(S)-hydroxytanshinone IIa (47.18 ± 5.10%) possessed the highest metal-chelation capacity. The present study affords an evidence for the fact that selective BChE inhibitors should be further investigated as promising candidate molecules for AD therapy.
    Citation [2]

    Nat Prod Commun. 2015 Jul;10(7):1149-52.

    Isolation and Fast Selective Determination of Nor-abietanoid Diterpenoids from Perovskia atriplicifolia Roots Using LC-ESI-MS/MS with Multiple Reaction Monitoring.[Pubmed: 26410997]
    In the first part of this study we extracted, isolated, and identified the main diterpenoid constituents from the roots of a Central Asian medicinal and ornamental plant--Perovskia atriplicifolia Benth. Eight major nor-abietanoid pigments were obtained using NP silica gel column chromatography and preparative RP-HPLC: cryptotanshinone, 1-hydroxycryptotanhinone, miltirone, 1-oxomiltirone, tanshinone IIa, 1,2-Didehydrotanshinone IIA, 1,2 didehydromiltirone, the non-quinone diterpenoid - arucadiol, as well as rosmarinic acid as a main phenolic compound. Secondly, we used the obtained compounds for fast and selective determination of the main diterpenes present in P. atriplicifolia root extract. After extraction with n-hexane, the quantitative analysis was carried out by LC-MS/MS with a triple quadrupole (qQq) mass detector without any prior clean-up step.