Forensic use of organic compounds
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Forensic use of organic compounds. University of Lincoln presentation. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License. Hydrocarbons. Drugs. Fire accelerants. Petrol:

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Forensic use of organic compounds

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Forensic use of organic compounds

University of Lincoln presentation

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License


Hydrocarbons

Drugs

Fire accelerants

Petrol:

It is petroleum-derived, and consists mostly of aliphatic hydrocarbons enhanced with iso-octane or the aromatic hydrocarbons toluene and benzene to increase its octane rating.

Butane Gas:

consumed

from lighters

C4H10

Diesel:

Diesel is produced from oil and is a hydrocarbon mixture, obtained in the fractional distillation of crude oil between 200 °C and 350 °C at atmospheric pressure

Carbon tetrachloride:

Used for solvent abuse

CCl4

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Aromatic compounds

Fire accelerants

Drugs

Benzodiazepines:

Psychoactive drugs with varying hypnotic, sedative, anxiolytic, anticonvulsant, muscle relaxant and amnesic properties

Benzene

Toluene

Explosives

Dyes

Tri-Nitro Toluene (TNT)

Alizarin

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Alcohols

Fire accelerants

Drugs

Ethyl Alcohol – Ethanol:

(C2H5OH), flash point 13 oC; ignition temp. 365 oC; explosive limits 3.5%-19.0%

4-hydroxybutanoic acid (GHB):

Date rape drug. GHB has been used in cases of drug-related sexual assault

Explosives

Dyes

Glycerol or glycerine:

Used as starting material for nitro-glycerine

BTTN :Military propellant for missiles: the mixture

can be made by co-nitration of butanetriol and

glycerol

Sudan Red G: It is considered carcinogenic and

genotoxic

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Aldehydes

Drugs

Dyes

Piperonal: Precursor of MDMA (Ecstasy: 3,4-methylenedioxy-N-methylamphetamine)

4-amino-3-nitrobenzaldehyde: Hair dye

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Ketones

Fire accelerants

Drugs

Methcathinone:

2-(methylamino)-propiophenone.

Psychoactive stimulant. Addictive.

Can be smoked, injected, or taken orally .

Acetone:(Dimethyl ketone)

flash point -20 degrees C; ignition temperature 465.4 degrees C; explosive limits 2.6%-13.0%

Dyes

Explosives

9,10-dioxoanthracene

ACETONE: precursor of TATP.

TATP: The synthesis of the explosive is made through oxidation of acetone using hydrogen peroxide

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Ethers

Fire accelerants

Drugs

Codeine: Opiate alkaloid

Ethyl Ether - diethyl ether: flash point -45 degrees C; ignition temperature 180 degrees C; explosive limits 1.9% - 36%

Dyes

Rhodamine 123

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Carboxylic acids

Drugs

Benzoylecgonine (ecgonine benzoate) is the primary metabolite of cocaine. It is formed in the liver by the metabolism of cocaine

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Esters

Fire accelerants

Drugs

Biodiesel refers to a non-petroleum-based diesel fuel consisting of short chain alkyl (methyl or ethyl) esters

Explosives

Benzocaine (local anaesthetic) :

Benzocaine is often favoured by drug

dealers to bulk out their cocaine supplies.

while many dealers use the cheaper

paracetamol or corn flour, Benzocaine gives

a numbing effect (like purer cocaine

should have).

Dibutylphatalate:

Plasticizer used in explosives. Plasticizers

are additives that increase the plasticity or

fluidity.

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Amides

Dyes

Yellow 13: pigment

Drugs

Fraud between drug dealers

Lidocaine is often added to cocaine as

a diluent because it numbs the gums when applied,

giving the impression of higher cocaine purity

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Amines

Drugs

Explosives

Ephedrine: found incold remedies, but used to

Enhance performance. Overdose can lead to death.

Similar chemical structure than methamphetamine

Hexanitrodiphenylamine: 40% part of an

explosive called hexanite; rest 60% TNT.

Obsolete explosive from WWII

Dyes

Indigo: found in foodstuff and textiles

(jeans)

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Nitro-compounds

Explosives

2,3-dimethyl-2,3-dinitrobutane: used as a detection taggant for

explosives. Added in C-4

Picric acid:

2,4,6-trinitrophenol (TNP): Like other highly nitrated compounds such as TNT, picric acid is an explosive

RDX or cyclonite:

main explosive In C-4.

Military explosive

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Functional groups

Link to “Functional Groups” video

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Acknowledgements

  • JISC

  • HEA

  • Centre for Educational Research and Development

  • School of Natural and Applied Sciences

  • School of Journalism

  • SirenFM

  • http://tango.freedesktop.org

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