Isooctane(CAS:540-84-1) Bulk Industrial Chemical Supplier - High Octane Number Chemical Raw Material for Gasoline Antiknock Agents, Organic Synthesis and Solvents

Product Overview

Isooctane, chemically 2,2,4-trimethylpentane (CAS 540-84-1), is the branched eight-carbon alkane on which the whole octane scale rests. Its Research Octane Number is defined as 100, which makes it the fixed point against which every gasoline, blend stock and additive is rated. It is a colorless, transparent liquid with a gasoline-like odor, insoluble in water and freely miscible with hydrocarbon streams, and we supply it at ≥99.5% purity in both industrial and analytical grades. It is a highly flammable liquid and is handled as one from the plant gate onward.

The product lives two lives. Fuel blenders and refineries take it as the high-octane component of automotive and aviation gasoline, lifting knock resistance in blends that have to hold up inside high-compression engines. Coatings and ink formulators, industrial cleaners producers, laboratories and synthesis plants take it as a non-polar solvent, an extraction medium and a chromatographic reference. The molecule is the same for both groups; what changes is the purity you need and the paperwork that travels with it.

Because production and ready stock sit in Dongying, buyers who already compare ethyl acetate suppliers for their other solvent lines can take isooctane from the same source and keep one document set, one shipping schedule and one point of contact.

Technical Specifications

Octane Reference & Gasoline Blending

• The anchor of the octane scale. Isooctane is defined as RON 100 and n-heptane as 0. An unknown fuel is rated by matching its knock behaviour to a blend of those two reference fuels in a standard test engine, so every octane figure is expressed relative to this compound.
• Blending stock for 95# and 98# gasoline. Refiners and blenders use it as the high-octane component that lifts pool octane, keeps knock under control at high load and holds high-compression engines away from detonation.
• Aviation and motorsport blends. Where knock resistance has to stay predictable across a wide load range, its combination of very high octane and a saturated, narrow-boiling structure makes it a dependable part of the blend.
• Octane without extra sulfur or olefins. The grade is high in saturated hydrocarbons with sulfur and olefins held at very low levels, so it raises octane without adding the impurities blenders work to keep down.
• Reference fuel for the laboratory. Keeping isooctane and n-heptane side by side lets a fuel laboratory bracket unknown samples against its own reference blends instead of waiting on an outside standard.
• Blend within the rules. Fuel blending normally happens at a refinery or a licensed terminal, so confirm what your local fuel regulations require before blending on site.

Solvent, Extraction & GC Applications

Why the polarity is the point

Isooctane carries no oxygen and no aromatic ring. It dissolves oils, fats, waxes and other non-polar material while leaving salts, glycols and water in the other phase, so a wash or extraction step separates cleanly and the solvent can be recovered without dragging the aqueous layer with it.

Extraction and reaction media

It works as an extraction solvent for non-polar target compounds and as an inert hydrocarbon medium for reactions where water or a polar solvent would interfere with the chemistry.

Industrial cleaners and degreasing

Formulators build hydrocarbon-based industrial cleaners around carriers of this type when they want a fast-evaporating base that lifts grease rather than dissolving it into water, and workshops use it to wipe oils off metal before painting or inspection.

Gas chromatography

The analytical grade is used as a solvent and as a standard in gas chromatography. Being a single, well-defined compound with a narrow boiling point, it gives a steady baseline and does not spread a set of peaks of its own across the run.

Synthesis feedstock

It is also a starting material for organic synthesis, typically on the way to isooctanol and isooctanoic acid.

Where it sits next to esters

An ethyl acetate solvent is polar and leaves the film quickly; isooctane is non-polar and evaporates more slowly. Most sites that already compare ethyl acetate suppliers keep both on the shelf and choose per step instead of treating them as interchangeable.

Flammability, Handling & Storage

1. Store it as a flammable liquid. Cool, well ventilated, explosion-proof storage, away from ignition sources and heat. Because the flash point sits far below any normal working temperature, there is always a flammable vapor space above the liquid.
2. Open containers slowly. With a vapor pressure of 53.3 kPa, closed drums build headspace pressure. Vent them in the open air or under extraction, and never cut, weld or braze a container that has held this product.
3. Bond and ground every transfer. Bond the drum, hose and receiving vessel, and use explosion-proof pumps, motors, lighting and tools in the area. No hot work, no naked flame, no spark-generating tools.
4. Control the vapor, not just the liquid. The vapor forms explosive mixtures with air. Work under local exhaust ventilation, test the atmosphere before entering pits, sumps or tanks, and never let vapor gather in a low corner.
5. Dress for the product. Solvent-resistant gloves, eye protection and, where ventilation is limited, respiratory protection. Our SDS sets out the required PPE; if the site also handles esters, keep the SDS ethyl acetate sheet with it, because an ethyl acetate solvent has a different flash point and a different PPE requirement.
6. Contain a spill before it reaches a drain. Secondary containment under the drums, a spill kit within reach and a plan to shut off drains. Remove ignition sources first, then stop the source and absorb.
7. Segregate in the store. Keep it away from strong oxidizers and from anything your local regulations list as incompatible, and mark the store for flammable liquids.

Quality Control & Batch Documentation

• Control from feedstock to finished lot. We work to the EPR quality management system: incoming feedstock, process conditions and finished product are all held to documented limits, so a drift upstream is caught in the batch record before it reaches your plant.
• What is measured on each lot. Purity against the ≥99.5% specification, sulfur and olefin content, moisture, appearance and color. A high saturated hydrocarbon content with very low impurity levels is what keeps the material stable in storage and predictable in reaction.
• A certificate of analysis with every shipment. The COA carries the lot number, the measured results and the specification limits they are checked against, so your QA can file it against the batch actually received.
• SDS and supporting documents. The isooctane SDS goes out with the first order; where the same site also handles esters, ask for the SDS ethyl acetate sheet so both sit in the same folder.
• Third-party checks before loading. Previous SGS test reports can be reviewed, and an SGS on-site inspection before loading can be arranged when your QA wants eyes on the container.
• Loading and traceability. Loading follows SOP-compliant procedures for hazardous chemicals, and the warehousing system keeps each lot identified back to the container it left in.
• The same discipline across the line. We are an ethyl acetate manufacturer as well as an isooctane supplier, and every solvent we ship, isooctane included, is released against measured results rather than an assumed specification.

Ordering, Packing & Delivery

1. Start with the grade and the job. Industrial grade for blending, general solvent and cleaning work; analytical grade for chromatography and reference use. Tell us what the product has to do and we will confirm which grade to book and which tests the COA has to show.
2. Buy from the producer. We are an integrated enterprise covering R&D, production, storage and logistics, with our own production lines for MTBE and ethyl acetate and ready stock of isooctane, isomeric xylene, methanol and cyclohexanone. The quotation comes from the plant rather than from a broker, and a campaign that needs several solvents can ship on one schedule.
3. Agree the packing per order. Packing depends on volume, destination and what your unloading point can handle. Tell us both and we will confirm the container type, labelling and hazard documentation before the booking is made.
4. Set the minimum quantity. Our standard minimum is one 20-foot container (20' FCL) per product. Smaller first orders and consolidated loads across two or three products are discussed case by case.
5. Choose the payment route. TT and LC are the standard terms; other arrangements are negotiable for repeat business.
6. Fix the shipment window. Shipment is generally arranged within 14 working days of receiving the deposit or the original letter of credit, through professional chemical logistics. The exact date is confirmed against the vessel schedule when the booking is placed.
7. Talk volume before price. Pricing is quoted against grade, volume and destination, and discounts are negotiated on order quantity. Buyers who already plan a wholesale ethyl acetate volume for other lines usually find it simpler to put isooctane into the same annual plan.
8. Test before you commit. Sample orders for evaluation are welcome — tell us the grade and the tests you plan to run, and we will arrange the sample and the freight terms with you.

Scale & Supply Capability

Shandong Yingtai Chemical Co., Ltd. operates from Dongying, Shandong, in the heart of China's petrochemical industry and home to the Shengli Oilfield. Our 60,000㎡ park-based facility runs modern plants with automated control systems and integrated utilities, and a team of over 200 people covers R&D, production and sales of high-value-added fine chemicals. We supply seven core chemical categories, backed by stable quality and consistent availability, and work alongside buyers on sourcing, product application and technical support. Custom requirements are reviewed case by case — share your specification and volume and we will confirm feasibility.

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