Making an Ester Homepage

Make an ester with an alcohol and a carboxylic acid.  Taste the smell!

NEW: Find out different magic potions for different smells
What more could you ask for!



Naming of Esters

Different Potions!

Chemistry Behind




A chemist walks into a pharmacy and asks the pharmacist, "Do you have any acetylsalicylic acid?"
"You mean aspirin?" asked the pharmacist.
"That's it, I can never remember that word."

Naming of Esters

An ester is an organic compound which is in the general formula: R-COO-R'.  Carboxylic acids are spelt as alkyl-alkanoate such as ethyl-methanoate, methyl-butanoate, or pentyl-propanoate.


The R and R' represent different carbon-hydrogen chain.

Esters are like salts, but they don't have positively and negatively charged ions floating around.

The R-COO is made from the R-COOH with the H dropping off, and the R' is made from HO-R' where the HO drop off.  Therefore, an ester is named R-R'oate.  R depends on the type of hydrocarbon chain.  Here is a guide:

Numbers of carbons 1 2 3 4 5 6 7 8 9 10
Prefix Meth- Eth- Prop- But- Pent- Hex- Hept- Oct- Non- Dec-


Different Potions!

Potion Ester Name Scent

Methanol + Butyric Acid

Methyl butyrate Pineapple or apple
Methanol + Benzanoic Acid Methyl benzoate Fruity-ylang ylang

Ethanol + Formic Acid / Propanol + Isobutyric Acid

Ethyl formate / propyl isobutyrate Rum

Ethanol + Butyric Acid

Ethyl butyrate Pineapple or strawberry
Ethanol + Salicylic Acid Ethyl salicylate Oil of wintergreen

Ethanol + Heptanoic Acid

Ethyl heptanoate Grape

Isobutanol + Formic Acid

Isobutyl formate Raspberries

Butanol + Butyric Acid

Butyl butyrate Pineapple

Pentanol + Acetic Acid

Pentyl acetate Banana

Petanol + Pentanoic Acid

Pentyl pentanoate Apple

Pentanol + Butyric Acid

Pentyl butyrate Pear or apricot
Isopentanol + Acetic Acid Isopentyl acetate Pear or banana
Octanol + Acetic Acid Octyl acetate Fruity-orange
Benzanol + Acetic Acid Benzyl acetate Slightly of jasmine

�Two molecules are walking down the street and they run into each other. One says to the other, "Are you all right?"
"No, I lost an electron!"
"Are you sure?" "I'm positive!"



Chemistry behind

The principle behind making esters is the combination of an Alcohol and a Carboxylic Acid.

  • Alcohols are a hydrocarbon chain connected to an -OH.  These are called something-ol.
  • Carboxylic acids are a hydrocarbon chain connected to an -COOH.  These are called something-oic acid

Esters are used in cheap perfumes, and foods.


�2006 Production