Does anybody know a supplier for alpha-Muurolene, gamma-Muurolene and delta-Cadinene?

More Inka Lusebrink's questions See All

What is the best way to remove diatoms from a sediment without destroying the terrigenous fraction?

Hi everyone, I am working on lacustrine sediments with a very high percentage of diatoms in them (up to 90%). Since I am interested in the small amount of clastic material I am experimenting for a...

14 November 2021 4,410 8 View

More information on dummy processes in LCA modelling?

Hi everyone, I have some questions regarding dummy processes in LCA modelling. I'm currently using GaBi version 10. The questions are as follows: 1) In what cases does the error message...

05 January 2021 1,328 2 View

Resorcinol-Formaldehyde Resins in Tyres.

Hi, I am currently doing some research on the stabilizing effect that Resorcinol-Formaldehyde resins have in tyres and I'm trying to find out whether these resins build a network on their own or...

11 November 2016 5,755 4 View

Why is there a sudden increase in absorption and scattering of data points?

I took UV scans of ethyl oleate (ester of oleic acid) in hexane in a wavelength range of 400 -200 nm. Scans of hexane were conducted to see if it was suitable as a solvent and it was. No...

17 May 2013 9,681 8 View

What influences palpation skill's in an osteopathic treatment?

I was wondering how much the sensory input is influenced by the motor output. i.e. the less motor i am the more sensory i can be. Is there any research out there that might give an answer to my...

15 March 2013 4,751 2 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

What is the best method to detect the chemical composition of pollen ?

I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?

28 July 2024 5,331 1 View

How can I use DFT-D3 correction ( Siesta version 5.0.1)?

Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...

27 July 2024 5,748 0 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...

25 July 2024 8,108 0 View

EDC carbodiimide and NHS easter 's half life among different pH?

It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...

25 July 2024 8,738 0 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

James D Blande

Hi Inka,

We previously got delta-cadinene from Fluka/Sigma-Aldrich, but it seems they don't list it any more. I noticed that BOC Sciences list it in their catalogue, see the webpage below.

http://www.bocsci.com/description.asp?cas=483-76-1

Unfortunately, I don't know where you might get alpha- or gamma-Muurolene.

Inka Lusebrink

Thanks a lot James, I asked for a quote right away.

Here is the response from BOC Sciences if anybody is interested in a (+)-δ-Cadinene standard: We do not have (+)-δ-Cadinene in stock. Can you wait for custom synthesis of this item? Usually, it takes 5 weeks to make the synthesis. If you are interested in custom synthesis quote, please let us know the quantity and your target price for it.