What are the contents of a cigarette?

What are the contents of a cigarette? There's almost 600 ingredients in a cigarette. It is often claimed that many of these are used safely as food additives. One significant issue is that while all these chemical compounds have been approved as additives to food, they were not tested by burning. Burning changes the properties of chemicals. More than 4,000 chemical compounds are created by burning a cigarette.

Here's a sample, selected at random.

Acetic Acid
Acetoin
Acetophenone
6-Acetoxydihydrotheaspirane
2-Acetyl-3-Ethylpyrazine
2-Acetyl-5-Methylfuran
trans-Anethole
Angelica Root Extract, Oil and Seed Oil
Anise
Anise Star, Extract and Oils
Anisyl Acetate
Anisyl Alcohol
Anisyl Formate
Benzoic acid, Benzoin
Benzoin Resin
Benzophenone
Benzyl Alcohol
Benzyl Benzoate
Benzyl Butyrate
Benzyl Cinnamate
Benzyl Propionate
Benzyl salicylate
Bergamot Oil
Bisabolene
Butter, Butter Esters, and Butter Oil
Butyl acetate
Butyl butyrate
Butyl butyryl lactate
Butyl isovalerate
Butyl phenylacetate

2-Isobutyl-3-Methoxypyrazine
alpha-Isobutylphenethyl Alcohol
Isobutyraldehyde
Isobutyric Acid
d,l-Isoleucine
alpha-Isomethylionone
2-Isopropylphenol
Isovaleric Acid
Mandarin Oil
Maple Syrup and Concentrate
Mate Leaf, Absolute and Oil
para-Mentha-8-Thiol-3-One
Menthol
Menthone
Menthyl Acetate
dl-Methionine
Methoprene
2-Methoxy-4-Methylphenol
2-Methoxy-4-Vinylphenol
para-Methoxybenzaldehyde
1-(para-Methoxyphenyl)-1-Penten-3-One
Oak chips extract and oil
Oakmoss absolute
9,12-Octadecadienoic acid (48%) and 9,12,15-Octadecatrienoic acid (52%)
delta-Octalactone
gamma-Octalactone
Propyl para-Hydroxybenzoate
Propylene Glycol
3-Propylidenephthalide
Prune Juice and Concentrate
Pyridine
Pyroligneous Acid And Extract
Pyrrole
Xanthan Gum
3,4-Xylenol
Yeast

And those my friend, are what are the contents of a cigarette