Dichlorofluoromethane
Dichlorofluoromethane (CAS: 75-43-4), with the linear formula FCHCl₂, is a halogenated methane derivative. Possessing a molecular weight of 102.92 g/mol, this compound is primarily utilised as a chemical intermediate in synthesis and as a component in specialty gas mixtures. Its unique chemical properties make it suitable for specific industrial applications requiring controlled fluorination or as a reagent in organic chemistry. Tech Serve Solutions supplies this compound with a minimum assay of 98%.
- IUPAC
- Freon® 21

Chemical Synthesis
Dichlorofluoromethane serves as a valuable reagent in organic synthesis, enabling the introduction of specific functional groups or acting as a building block for more complex molecules. Its reactivity profile is well-suited for various chemical transformations.
Specialty Gases
This compound can be incorporated into specialty gas formulations for niche industrial or research applications. Its properties are considered for use where specific gaseous compositions are required.
Reagent for Fluorination
As a fluorinated compound, Dichlorofluoromethane can participate in reactions requiring the addition of fluorine atoms or fluorinated moieties, contributing to the development of novel materials and compounds.
| Molecular weight | 102.92 |
|---|---|
| Linear formula | FCHCl2 |
| Assay | 98% |
| Boiling point | 8.9 °C(lit.) |
| Vapour pressure | 1,193 mmHg (21 °C) |
| Vapour density | 3.57 (vs air) |
| Autoignition temp | 1022 °F |
| Melting point | −135 °C(lit.) |


Hazard statements
- H280Contains gas under pressure; may explode if heated
- H420
Precautionary statements
- P410Protect from sunlight
| Protective equipment | Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 1029 2.2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | N |
| Risk statements (R) | 59 |
| Safety statements (S) | 59 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Dichlorofluoromethane used for?
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Dichlorofluoromethane (CAS: 75-43-4) is primarily used in chemical synthesis as a reagent and can be a component in specialty gas mixtures. It is also employed in reactions requiring fluorination.
What are the CAS number and formula for Dichlorofluoromethane?
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The CAS number for Dichlorofluoromethane is 75-43-4, and its linear formula is FCHCl₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Dichlorofluoromethane with a minimum assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product specifications.
How should Dichlorofluoromethane be handled safely?
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Dichlorofluoromethane is classified under GHS04 and GHS07 with a Warning signal word. It carries hazard statements H280 (Contains gas under pressure; may explode if heated) and H420 (Extremely harmful to ozone layer). Appropriate personal protective equipment, including gloves and respiratory protection (half-mask respirator or multi-purpose combination cartridge), should be used. Store in a well-ventilated area, protected from sunlight (P410 + P403).
Is Dichlorofluoromethane regulated or scheduled?
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Dichlorofluoromethane is listed under UN 1029 2.2 (non-flammable, non-toxic gases) for transport. It carries the European risk/safety statement 59 and hazard code N, indicating its ozone-depleting potential. Please consult current local regulations for specific handling and disposal requirements.
How is Dichlorofluoromethane packed, shipped, and exported?
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Dichlorofluoromethane is supplied according to transport regulations (UN 1029 2.2). Tech Serve Solutions has extensive experience in exporting fine chemicals globally, ensuring compliance with international shipping standards.
How can I request a quote or sample of Dichlorofluoromethane?
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To request a quote or a sample of Dichlorofluoromethane, please contact our sales department through the TSS website or by phone, providing your specific requirements and shipping details.
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