Product Overview
Denatured Alcohol 200 Proof 3C is a grade-specific ethanol (C₂H₆O, CAS 64-17-5) rendered unfit for beverage use by the addition of a small amount of denaturant. The "200 proof" designation means this product contains the highest concentration of ethanol commercially available — virtually anhydrous. The 3C formula identifies the specific denaturant system used, which keeps the product outside federal alcohol tax requirements while preserving its effectiveness as a solvent.
we distribute this product in our Taylor, TX warehouse and ship it daily in pack sizes from a single quart up to 330-gallon totes. If you run an extraction line, a QC lab, or a production floor that needs a fast-evaporating, high-solvency alcohol, this is the product to reach for.
Why This Concentration
At 200 proof, this denatured alcohol carries the lowest possible water content. That matters in processes where residual moisture causes problems — botanical extraction, where water pulls unwanted polar compounds; analytical work, where trace water shifts retention times; or cleaning, where you need a surface dry in seconds, not minutes. The near-anhydrous character also means it mixes readily with a wide range of organic solvents, resins, and coatings without introducing phase-separation issues.
The trade-off is flammability. A 200-proof alcohol has a very low flash point, and the vapor pressure is significant — 40 mmHg at 66 °F, climbing to 50 mmHg at 77 °F. Every degree of ambient temperature increases the vapor load in your workspace. If your process can tolerate some water content and you want a lower vapor hazard, a lower-proof option may be a better fit. But if you need maximum solvency and the fastest possible evaporation rate, 200 proof is the right call.
The denatured designation means this product cannot legally be used in food, beverage, or pharmaceutical applications intended for human consumption. If your process requires an undenatured ethanol, this product is not appropriate. For industrial solvent work, extraction, cleaning, and analytical use, the denaturant does not interfere, and the tax-exempt status keeps the cost significantly lower than pure alcohol.
Chemical Profile
Denatured Alcohol 200 Proof 3C is a clear liquid with a pleasant odor, lighter than water at a density of 0.79 at 68 °F. It is highly miscible with water — solubility is 100 mg/mL or greater at 73 °F — and dissolves readily in most organic solvents. The molecular weight is 46.07 g/mol. Vapor pressure runs 40 mmHg at 66 °F and 50 mmHg at 77 °F, which means it evaporates quickly at room temperature and produces a meaningful vapor concentration in enclosed spaces. That vapor behavior drives both its utility as a fast-drying solvent and its fire risk in poorly ventilated areas.
Industrial Applications
Denatured Alcohol 200 Proof 3C works across a broad range of industrial and laboratory settings. The common thread: you need a grade-specific, fast-evaporating solvent that leaves minimal residue.
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Solvent extraction. In botanical and pharmaceutical extraction, 200-proof ethanol strips target compounds from plant material efficiently. Its near-anhydrous character minimizes co-extraction of water-soluble impurities like chlorophyll and sugars, giving a cleaner crude extract that requires less downstream processing.
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Surface cleaning and degreasing. On production floors, this alcohol cuts oils, greases, and flux residues from metal, glass, and plastic surfaces. It evaporates fast enough that parts can move directly to the next station without a drying step — useful on high-throughput lines where dwell time costs money.
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HPLC mobile phase. Analytical labs use grade-specific ethanol as a mobile-phase component in liquid chromatography. The low water content and consistent purity help maintain reproducible retention times and baseline stability run after run.
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Laboratory reagent. General bench use — sample preparation, dilution, and reaction solvent work. When the protocol calls for anhydrous ethanol and the application is not for human consumption, denatured 200 proof delivers the purity at a fraction of the cost of USP-grade undenatured alcohol.
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Fuel additive. Used in fuel blending to improve combustion characteristics and as a carrier solvent for fuel-system additives. The high ethanol content ensures clean, consistent mixing with base fuels.
Handling & Storage
This product carries a GHS signal word of Danger (per the product's GHS classification). The two primary hazard statements are: H225 — Highly flammable liquid and vapour, and H319 — Causes serious eye irritation (per the product's GHS classification). Take both seriously.
Store in a cool, well-ventilated area, away from heat sources, open flame, and strong oxidizers. Direct sunlight accelerates vapor buildup in closed containers. Use HDPE or glass containers — avoid materials that ethanol can degrade over time. Keep containers sealed when not in use; the high vapor pressure means you lose product to evaporation and build a flammable atmosphere in a closed room faster than you might expect.
When handling, wear chemical-splash goggles and compatible gloves. In areas with poor ventilation or during bulk transfers, monitor the lower explosive limit and use explosion-proof equipment. Avoid contact with strong oxidizers and concentrated acids, which can produce hazardous reactions. If skin or eye contact occurs, flush immediately with water and follow your facility's exposure protocol.
Hazmat & Shipping
Denatured Alcohol 200 Proof 3C is a regulated hazardous material for transport. Every shipment from our facility is packaged, labeled, and documented to meet DOT requirements:
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UN Number: UN1987 (per 49 CFR 172.101)
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Hazard Class: 3 — Flammable Liquid (per 49 CFR 172.101)
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Packing Group: II (per 49 CFR 172.101)
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Proper Shipping Name: Alcohols, n.o.s. (Ethyl alcohol, isopropyl alcohol) (per 49 CFR 172.101)
We handle hazmat shipments daily from our Taylor, TX warehouse. Containers are packed with the correct UN-specification packaging, diamond placards, and shipping papers before they leave the dock. If you need freight quotes or have carrier restrictions, our logistics team can work with your preferred carrier or arrange shipment through ours.
Documentation
A Safety Data Sheet ships with every order, available in English, Spanish, French, and Japanese. A Technical Data Sheet is also available on request. Each shipment includes a lot-specific Certificate of Analysis so you can verify the product matches your specifications before it enters your process.
Why Buy from Alliance Chemical
We are a hazmat distributor, not a broker. This product sits in our Taylor, TX warehouse, and our crew picks, packs, and ships it daily in DOT-compliant packaging. Shipping and handling guidance on this page has been reviewed by Andre Taki, DOT Hazmat Specialist. When you order, you deal with people who physically handle these materials — we know the packaging requirements, the carrier rules, and the documentation you need to keep your receiving dock in compliance. From a single quart to a 330-gallon tote, we ships under the stated handling schedule on most orders and include full documentation with every package.
