Indria Persittamaia

4 Questions 4 Answers 0 Followers

Questions related from Indria Persittamaia

It is possible infrared spectra ketone showed lower intensity or have a lower frequency (1547 cm-1)?

Hi, I have a infrared spectra of a synthetic compound (structure and spectra see pictures below) I have a problem to interpreting the C=O ketone. Usually, C=O ketone showed a strong peak at 1715...

03 March 2018 2,351 5 View

In IC50 for microdilution antibacterial assay, did in the formula need to be reduced by media control?

I'm trying to calculate IC50 for antibacterial assay from colored compund (syntethic compound), did in the formula need to be reduced by media control? Thank you.

01 January 2018 9,272 4 View

Is it okay to soluble a compund in DMSO 100% then dilute it with aquades till get DMSO 10% and then add 4 drops of tween 20 in antibacterial test?

I have a non polar compound (curcumin analogue) that insoluble to water, but soluble in pure DMSO. So, for antibacterial test purpose, I tried to dissolve it in DMSO 100% then add with aquades...

11 November 2017 6,892 5 View

I need your help! If in TLC stained with KMnO4 show 2 spots (dark yellow and white) did it mean there's 2 compound in samples?

Here's the picture of the TLC. And can you please explain about the principle of KMnO4 staining in organic chemistry? Thank you

01 January 1970 255 6 View