Isobutane Supplier in Malaysia
- Also known as
- 2-Methylpropane
- I-Butane
- R-600a
Isobutane supplier enquiries in Malaysia cover R-600a refrigerant, aerosol propellant, polymer blowing-agent and high-purity process requirements. Also called 2-methylpropane or i-butane, isobutane is a colourless branched C4 hydrocarbon handled as a compressed or liquefied gas for commercial supply.
Refrigerant-grade isobutane is selected for equipment designed for R-600a. Propellant and blowing-agent grades are specified for compatible aerosol or polymer systems, while high-purity process material supports petrochemical conversion and controlled laboratory work.
Buyers should distinguish isobutane from normal butane even though both have the molecular formula C4H10. The key purchasing controls may include isobutane content, other hydrocarbon isomers, moisture, sulphur compounds, non-condensable gases and residue, depending on the application.
Send the required grade, purity and impurity limits, supply form, quantity, receiving interface and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation.

- CAS number
- 75-28-5
- Formula
- C4H10
- Grade
- refrigerant, propellant and blowing agent, high-purity process
- Appearance
- colourless gas at ambient conditions; commonly handled as a liquefied gas under pressure
Isobutane grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Refrigerant-grade isobutane | liquefied gas under pressure | — | Refrigeration equipment designed for R-600a, where isobutane content, moisture, non-condensable gases and other impurity limits are set by the equipment or refrigerant specification. | Confirm the required supply format with the quotation. |
| Propellant or blowing-agent grade isobutane | liquefied gas under pressure | — | Aerosol propellant and compatible polymer-foam processes that specify isobutane with controlled composition, moisture, residue and odour. | Confirm the required supply format with the quotation. |
| High-purity process-grade isobutane | compressed or liquefied gas | — | Petrochemical conversion, controlled process duty and laboratory work where the branched C4 identity and hydrocarbon impurity profile are important. | Supply form and connection requirements are confirmed with the quotation. |
How to buy Isobutane from ChemTrade
Request a quote for Isobutane
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Chemical identity | isobutane, also known as 2-methylpropane | — |
| CAS number | 75-28-5 | — |
| Molecular formula | C4H10 | — |
| Isomer identity | branched C4 hydrocarbon; distinct from normal butane | — |
| Physical state | colourless gas at ambient conditions; liquefied under pressure for handling | — |
| Grade controls | isobutane content, propane, normal butane and other hydrocarbon impurities, moisture, sulphur compounds, non-condensable gases and residue confirmed against the intended grade | — |
Isobutane applications
Safety and handling
Handle isobutane in equipment intended for compressed or liquefied gas service, with suitable ventilation and ignition-source control. Follow the safety information for the quoted grade. Supply is subject to applicable requirements.
Common questions about Isobutane
Are isobutane and normal butane the same product?
No. Isobutane is the branched C4 isomer 2-methylpropane, while normal butane has a straight carbon chain. They share the formula C4H10 but have different physical properties and process specifications, so they should be ordered by the required isomer.
What does R-600a mean?
R-600a is the refrigerant designation for isobutane. A refrigeration enquiry should still state the required purity, moisture and impurity limits, quantity and equipment requirement because a general process grade may not match a refrigerant specification.
Which isobutane grade should I request?
Refrigerant grade serves equipment designed for R-600a. Propellant or blowing-agent grades suit compatible aerosol and foam systems, while high-purity process material is selected for controlled petrochemical or laboratory work. The application specification determines the choice.
Is isobutane supplied as a gas or a liquid?
Isobutane is a gas at ambient conditions and is commonly handled as a liquefied gas under pressure. State the required supply form, quantity and receiving interface so the quotation can address the correct arrangement.
What specifications should be provided for isobutane?
Include the target isobutane content and any limits for propane, normal butane, other hydrocarbons, moisture, sulphur compounds, non-condensable gases and residue. Name the refrigerant, propellant, blowing-agent or process duty so the controls can be assessed in context.
How do I request an isobutane price in Malaysia?
Send the grade, purity and impurity limits, application, quantity, receiving arrangement and delivery location. Add documentation and timing needs so packing, delivery and commercial terms can be confirmed in the quotation.
