Ethanol

Ethanol is a volatile, flammable, simple, organic alcohol. Available in various reagent grades, it has applications as a lab/medicinal solvent, an antiseptic, a fuel source/additive, a precursor to organic compounds, etc.

Denatured alcohol (CAS 64-17-5), also known as denatured ethanol or industrial methylated spirit (IMS), is ethanol (ethyl alcohol) to which has been added small known quantities of other substances, so as to ‘denature’ or adulterate it in a controlled manner.

What Additives are Used in Denatured Alcohol?
Often, the additive is methanol (at 5 to 10%), but isopropanol (IPA), methyl ethyl ketone (MEK), acetone or methyl isobutyl ketone (typically all at 1%) may be used. Denatonium can be added for a bitter taste, colored dyes such as methyl violet for visual identification, or a combination may also be used. The purpose of these additives is to create ethanol that is not suitable for human consumption.

The primary purpose of denaturation is to render the ethanol unfit, unpalatable, and unsafe for recreational human consumption, or unsuitable for any other unauthorized purpose. Denaturation usually makes the product exempt from duty payable and other taxes, making it cheaper to purchase.

How Is Denatured Alcohol Used?
Denatured alcohol is used commercially and in industry:
• As a general-purpose solvent, especially for removal of adhesives, waxes, and paint
• For cleaning and degreasing apparatus and equipment
• As a fuel for burners and stoves
• As a surface disinfectant or sterilizer for use in cleanrooms, laboratories, and clinical environments, presented as a liquid, spray, gel, or pre-moistened wiper
• As a preservative and antibacterial agent in cosmetics

Denatured alcohol with added methanol is acutely toxic. It is flammable at room temperature and storage in a secure location is recommended. Due attention should also be given to all other appropriate precautions necessary for handling these chemicals.

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Sigma Aldrich Fine Chemicals Biosciences Reagent Alcohol anhydrous, <=0.005% water | 64-17-5 | MFCD00003568 | 4L

Reagent Alcohol anhydrous, <=0.005% water | 64-17-5 | MFCD00003568 | 4L

Pricing & Availability

347

Medchemexpress LLC Oxysophocarpine | 26904-64-3 | MFCD08689951 | ≥98.0% | 262.35 | C15H22N2O2 | 10 MG

Oxysophocarpine is a quinolizidine alkaloid supplied as an analytical research standard for laboratory use. It is provided as a solid powder in small-mass vials and is intended for biochemical and pharmacological studies; store protected from light at low temperature.

Alkaloid research standard for biochemical and pharmacological studies.
Reported neuroprotective and anti-nociceptive activity.
Molecular formula C15H22N2O2; molecular weight 262.35.
Purity ≥98.0%.
Supplied in small-mass vials (1 mg-10 mg); store at 4°C protected from light; solutions require low-temperature storage.

Pricing & Availability

348

Sigma Aldrich Fine Chemicals Biosciences Ethyl alcohol, Pure, 64-17-5, MFCD00003568, 500mL

Linear Formula CH3CH2OH, ≥99.5%, Molecular Weight 46.07, 200 proof, for molecular biology, Synonym: Ethanol, absolute alcohol, non-denatured ethanol

Pricing & Availability

349

Sigma Aldrich Fine Chemicals Biosciences Ethyl alcohol, Pure, 64-17-5, MFCD00003568, 100mL

. *To purchase may require a copy of your state permit to purchase ethyl alcohol.

Pricing & Availability

350

Sigma Aldrich Fine Chemicals Biosciences Ethyl alcohol, Pure, 64-17-5, MFCD00003568, 500mL

Linear Formula CH3CH2OH, Molecular Weight 46.07, 190 proof, for molecular biology, Synonym: Ethanol, absolute alcohol, non-denatured ethanol

Pricing & Availability

351

Polysciences, Inc. Alcohol, 200 proof, ≥ 99.5%, USP

Our histology grade Alcohol Reagent is composed of 90 parts ethyl alcohol, 5 parts methyl alcohol and 5 parts isopropyl alcohol, v/v blend. Preferred mixture for dehydrating tissue samples prior to embedding. Suitable for most histological procedures.