Cabraleahydroxylact...

Cabraleahydroxylactone
Cabraleahydroxylactone
Cabraleahydroxylactone
Cabraleahydroxylactone
Cabraleahydroxylactone

Cabraleahydroxylactone

Min.Order / FOB Price:Get Latest Price

10 Milligram

Negotiable

  • Min.Order :10 Milligram
  • Purity: HPLC≥98%
  • Payment Terms : T/T

Keywords

119400-87-2 Cabraleahydroxylactone High quality

Quick Details

  • Appearance:detailed see specifications
  • Application:analysis,activity test,Botanical Refer...
  • PackAge:According to the clients requirement.
  • ProductionCapacity:1|Metric Ton|Day
  • Storage:Store at 2~8°C
  • Transportation:by air or by ocean shipping

Superiority:

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine，Traditional Chinese Medicine), Natural Active Pharmaceutical Ingredients worldwide. From small quantities for R&D or reference standard, to large quantities for customizing or manufacturing, Biopurify emphasizes on consistent and reliable services for his customers.
With excellent quality products and good service, we have clients from more than dozens countries and regions, and we pride ourselves in providing our customers with a total satisfaction experiences.
We are doing our best to be your reliable partner for high quality Phytochemicals and Reference Standards from china.

Our main services:
A. Supply active ingredients and reference standards ofTraditional Chinese Medicine, from mgs to kgs scale.
B. Custom extraction and purification, target Herb Active Ingredients
C. Custom synthesis and semi-synthesis for Natural Active Ingredients
D. CR, CM and PD services from lab scale, pilot scale to commercial scale(GMP is also available)
E.Traditional Chinese Medicine compounds library


1.Provide traditional Chinese medicine reference materials and natural active ingredients;
2.More than 2200 compounds are available for selection, continuously building high-quality natural product libraries for drug research and development;
3.Provide various screening libraries and more inhibitor products;
4.Provide separation and structural determination of natural products;
5.Laboratory scale pilot to commercial scale collaborative research and process development services.More than 180 experiences in phytochemistry (still increasing)
Each product has passed very strict testing (NMR/MS/HPLC)
Agents from many countries

General tips：For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging：1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition：Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Details:

Chemical Properties of Przewalskin

Cas No. 119400-87-2 SDF  
PubChem ID 14139389 Appearance Powder
Formula C18H24O2 M.Wt 272.4
Type of Compound Diterpenoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
SMILES CC1=C(C=C2C(=C1)C3CC4C2(CCCC4(C)C)CO3)O
Standard InChIKey RHXIVZRYHFCBDN-BQFCYCMXSA-N
Standard InChI InChI=1S/C18H24O2/c1-11-7-12-13(8-14(11)19)18-6-4-5-17(2,3)16(18)9-15(12)20-10-18/h7-8,15-16,19H,4-6,9-10H2,1-3H3/t15-,16-,18-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of Przewalskin

The roots of Salvia miltiorrhiza

Biological Activity of Przewalskin

Description Przewalskin A and Przewalskin B showed modest anti-HIV-1 activity with EC50 = 41 and 30 microg/mL, respectively.
Targets HIV
In vitro

Two new abietane diterpenoids from Salvia yunnanensis.[Pubmed: 16450305]

Planta Med. 2006 Jan;72(1):84-6.

Two new abietane diterpenoids, yunnannin A and danshenol C, were isolated from Salvia yunnanensis together with ten known diterpenoids, danshenol A, Przewalskin, tanshinone IIA, tanshinone I, crypotanshinone, 1,2-dihydrotanshinone, tanshinlactone, 5,6-dehydrosugiol, 12-hydroxy-6,7-seco-8,11,3-abietatriene-6,7-dial and phytol.
METHODS AND RESULTS:
Their structures were established based on spectroscopic data, chemical reactions and comparison with literature data. Compounds were tested for their antitumor activity in T-24, QGY, K562, Me180 and BIU87 cell lines. Compound showed inhibited growth of K562 (IC50=0.53 microg/mL), T-24 (IC50=7.94 microg/mL), QGY (IC50=4.65 microg/mL) and Me180 (IC50=6.89 microg/mL) cell lines while compound was inactive. Compound showed moderate inhibitory activity on QGY (IC50=16.75 microg/mL) and Me180 (IC50=5.84 microg/mL) cells.

Przewalskin A: A new C23 terpenoid with a 6/6/7 carbon ring skeleton from Salvia przewalskii maxim.[Pubmed: 16986923]

Org.Lett.,2006 Sep 28;8(20):4453-6.


METHODS AND RESULTS:
Przewalskin A (1), a novel C23 terpenoid with a 6/6/7 carbon ring skeleton, was isolated from Salvia przewalskii. Its structure was determined by comprehensive 1D NMR, 2D NMR, and MS spectroscopic analysis and subsequently confirmed by a single-crystal X-ray diffraction study of its PDC oxidation derivative (2). Compounds 1 and 2 showed modest anti-HIV-1 activity with EC50 = 41 and 89 microg/mL, respectively.

Przewalskin B, a novel diterpenoid with an unprecedented skeleton from Salvia przewalskii maxim.[Pubmed: 17217287 ]

Org Lett. 2007 Jan 18;9(2):291-3.

P
METHODS AND RESULTS:
rzewalskin B (1), a novel diterpenoid possessing a unique skeleton, was isolated from a Chinese medicinal plant Salvia przewalskii. Its structure and relative stereochemistry were elucidated by extensive NMR analysis and a single-crystal X-ray study. A possible biosynthetic pathway for 1 was proposed. Compound 1 exhibited modest anti-HIV-1 activity with EC50 = 30 microg/mL.

Protocol of Przewalskin

Structure Identification

J Agric Food Chem. 2009 Aug 12;57(15):6879-87.

Chemical characteristics of Salvia miltiorrhiza (Danshen) collected from different locations in China.[Pubmed: 19601629]


METHODS AND RESULTS:
The chemical characteristics of Salvia miltiorrhiza , also called "danshen" in China, were investigated on the basis of the simultaneous quantitative determination of 13 hydrophilic and lipophilic compounds, namely, protocatechuic acid, protocatechuic aldehyde, caffeic acid, ferulic acid, isoferulic acid, rosmarinic acid, salvianolic acid B, salvianolic acid A, dihydrotanshinone I, Przewalskin, cryptotanshinone, tanshinone I, and tanshinone IIA, in 74 samples collected from different locations using ultraperformance liquid chromatography (UPLC). Hierarchical clustering analysis based on 13 investigated compounds and the similarity of the entire chromatographic pattern showed that S. miltiorrhiza was significantly different from Salvia przewalskii , an adulterant of danshen.
CONCLUSIONS:
The chemical characteristics of S. miltiorrhiza collected from different locations in China were revealed, and salvianolic acid B, rosmarinic acid, cryptotanshinone, and tanshinones I and IIA were optimized as markers for the evaluation, which is helpful in the quality control of S. miltiorrhiza.

Preparing Stock Solutions of Przewalskin

  1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.6711 mL 18.3554 mL 36.7107 mL 73.4214 mL 91.7768 mL
5 mM 0.7342 mL 3.6711 mL 7.3421 mL 14.6843 mL 18.3554 mL
10 mM 0.3671 mL 1.8355 mL 3.6711 mL 7.3421 mL 9.1777 mL
50 mM 0.0734 mL 0.3671 mL 0.7342 mL 1.4684 mL 1.8355 mL
100 mM 0.0367 mL 0.1836 mL 0.3671 mL 0.7342 mL 0.9178 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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