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Fluoro-Chlorobenzene · CAS 2268-05-5

2,6-Dichloro Fluoro Benzene

C6H3Cl2F Molar mass 165.00 g/mol

2,6-Dichloro Fluoro Benzene is a low-melting, crystalline fluorochlorobenzene made commercially by halogen-exchange chemistry, used chiefly as a pharmaceutical and agrochemical building block — with one important physical-state correction up front: this compound is a solid near room temperature, not a liquid, whatever a given supplier datasheet may say.

Identification Sheet REP.
IUPAC name1,3-Dichloro-2-fluorobenzene
CAS number2268-05-5
EC / EINECS number607-128-1 (single source; not independently cross-confirmed)
Molecular formulaC₆H₃Cl₂F
Molar mass165.00 g/mol
AppearanceWhite to light yellow or orange crystalline solid
Common synonyms1,3-Dichloro-2-fluorobenzene
Melting Point37 – 40 °Csolid, close to ambient
Boiling Point168 – 171 °Cat 1 atm, minor source variance
Density1.397 g/cm³estimate — single source
Flash Point~60 °Cclosed cup
Log P (o/w)not independently confirmedsee note
Purity Offered98%+GC assay
01 / PRODUCT DOSSIER

What 2,6-Dichloro Fluoro Benzene is, and why buyers source it

A working overview of the compound's chemistry, its place in the aniline-derivative family, and the grades Chelora Chemicals keeps in regular supply.

We want to flag a genuine discrepancy in the supplier literature for this exact compound before anything else: at least one commercial datasheet describes it as a liquid, while two independent sources (covering appearance and melting point) describe it as a white-to-light-yellow or orange crystalline solid with a melting point of 37–40 °C. Given that melting point is only modestly above typical warm-climate ambient temperature, we treat this as a solid, low-melting material — and flag the "liquid" description elsewhere in the trade as most likely an error, not a genuine alternate form.

Commercially, this isomer is made by Halex (halogen-exchange) chemistry from a polychlorobenzene precursor, and is used across pharmaceutical, pesticide, dye and liquid-crystal intermediate chemistry. One documented chain ties it to fluoroquinolone antibacterial synthesis (norfloxacin and lomefloxacin are named in supplier literature), though we note this specific attribution rests on a single source and should be read as plausible and consistent with the compound's general chemistry rather than independently verified against a primary patent.

Where it fits in the synthesis chain

We supply the fluorochlorobenzene intermediate itself, not any finished pharmaceutical or agrochemical active built from it.

Grades we supply

98%+ (GC) is the standard commercial grade across suppliers we benchmarked against.

02 / MANUFACTURING ROUTE

How 2,6-Dichloro Fluoro Benzene is made

An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.

2,6-Dichloro Fluoro Benzene is produced industrially by Halex (halogen-exchange) chemistry: a polychlorinated benzene precursor is reacted with a fluoride source (typically potassium fluoride) under conditions that displace one chlorine with fluorine at the activated position, giving this specific chlorofluorobenzene pattern.

This is the standard route documented by at least one major supplier of this compound, and is consistent with how this entire class of chlorofluorobenzenes is made at industrial scale — direct fluorination of benzene itself is not practical, so halogen exchange on a pre-chlorinated ring is the established approach.

The crude product is purified by recrystallisation, taking advantage of its relatively low but well-defined melting point to separate it from residual starting material and other chlorofluorobenzene isomers formed as minor side-products of the halogen-exchange step.

A solid, not a liquid — plan storage and handling accordingly

Because this compound melts only a little above typical warm-climate ambient temperature, it can arrive as either a solid cake or a part-melted mass depending on transit conditions, and that is normal, not a quality defect. We specify it, store it and ship it as the crystalline solid it is, and recommend gently warming and homogenising a shipment before sampling if it has partially melted in transit, rather than treating that as off-spec.

03 / APPLICATIONS

Industries and processes that use it

2,6-Dichloro Fluoro Benzene is consumed almost entirely as a synthesis intermediate. The four fields below account for most of the demand we see through our export desk.

Field 01

Fluoroquinolone Antibacterial Chemistry

Documented in supplier literature as feeding fluoroquinolone antibacterial synthesis, including norfloxacin and lomefloxacin, via further ring chemistry downstream of this intermediate.

Field 02

Agrochemical Intermediate Chemistry

Used as a halogenated building block in pesticide synthesis, where the activated fluorochlorobenzene ring supports further substitution.

Field 03

Dye Intermediate Chemistry

Used in select dye synthesis chains requiring this specific halogenation pattern.

Field 04

Liquid-Crystal Intermediate Chemistry

Cited by at least one supplier as a building block in liquid-crystal material synthesis, a specialty application distinct from its pharma and agro uses.

04 / REACTION CHEMISTRY

How the molecule is typically carried forward

As with the other fluorochlorobenzenes in this range, this molecule's commercial reaction chemistry is about what further substitution or coupling can be built on the existing halogen pattern, rather than reactions at the ring's unsubstituted positions.

Nucleophilic aromatic substitution

The fluorine, activated by the flanking chlorines, is a good leaving group for further nucleophilic substitution chemistry in specialty synthesis — part of why this compound feeds further pharma and agro intermediate chains.

Friedel-Crafts and related electrophilic chemistry

The ring can undergo further electrophilic substitution under appropriate conditions, used in specialty synthesis routes documented by downstream processors rather than performed by us.

Metal-halogen exchange / cross-coupling

The aryl chlorines can participate in metal-catalysed cross-coupling in specialty chemistry, though this is not the standard commercial route for this grade.

05 / FAMILY COMPARISON

2,6-Dichloro Fluoro Benzene against its near relatives

2,6-Dichloro Fluoro Benzene, 2,4-Dichloro Fluoro Benzene and 3,4,5-Trifluoro Bromo Benzene are the three halogenated benzene pharma/agro intermediates in this part of our range.

ProductCAS NumberTypically Used InNotes
2,6-Dichloro Fluoro Benzene2268-05-5Fluoroquinolone chain (norfloxacin, lomefloxacin) and general pharma/agro intermediate useThe product on this page. Solid, mp 37–40 °C.
2,4-Dichloro Fluoro Benzene1435-48-9Fluoroquinolone antibacterial chain (ciprofloxacin and related actives)Also supplied — see its product page. Liquid, mp −23 °C.
3,4,5-Trifluoro Bromo Benzene138526-69-9General pharmaceutical and agrochemical building blockAlso supplied — see its product page. Liquid, mp <−20 °C.

Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide rather than a specification sheet.

06 / HAZARD & HANDLING

Safety classification at a glance

Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H335

May cause respiratory irritation.

H336

May cause drowsiness or dizziness.

Signal word

Warning

No harmonised EU CLP Annex VI entry was located for this substance. Two SDS-based sources we checked disagree on part of the classification — one lists a flammable-solid hazard statement (H228) that the other omits, while the other lists a narcotic-effects statement (H336) that the first omits; we present the set most consistent with a crystalline, moderately low-melting solid and recommend checking the SDS shipped with each specific lot. IARC has not evaluated this substance.

07 / STORAGE & SHELF LIFE

Keeping it on spec between delivery and use

General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.

Shelf Life24 months, unopened
Storage Temp15–30 °C
ContainerFibre drums or multi-wall paper sacks with polyethylene liner

Store in a cool, dry area below its melting point to keep it as a free-flowing solid; if a shipment arrives part-melted after warm transit, gently homogenise before sampling rather than treating it as off-spec. Keep away from strong oxidisers.

08 / PACKING & EXPORT

How it ships from Indonesia

Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.

Standard Packing25 kg bags
Bulk PackingDrums / jumbo bags
Min. OrderFrom 1 drum
Lead Time2 – 4 weeks
Export TermsFOB · CFR · CIF
09 / QUALITY & DOCUMENTATION

What travels with every batch

Specification is agreed before the purchase order, not discovered on arrival. Every shipment of 2,6-Dichloro Fluoro Benzene leaves with a documented, checkable paper trail.

Doc 01

Certificate of Analysis

Batch-wise assay (by GC), isomer purity, melting point range and moisture, issued against the agreed specification so your QC team can check it, not just file it.

Doc 02

Safety Data Sheet

GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.

Doc 03

Technical Data Sheet

Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.

Doc 04

Certificate of Origin

Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.

Doc 05

Dangerous Goods Declaration

UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.

Doc 06

Third-Party Inspection

Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.

10 / FAQ

Frequently asked questions

What buyers most often ask our sales desk about this grade.

01What is 2,6-Dichloro Fluoro Benzene used for?+
2,6-Dichloro Fluoro Benzene is used as a pharmaceutical and agrochemical building block, documented in supplier literature as feeding fluoroquinolone antibacterial synthesis (norfloxacin, lomefloxacin) as well as broader pesticide, dye and liquid-crystal intermediate chemistry via Halex (halogen-exchange) manufacture.
02What is the CAS number of 2,6-Dichloro Fluoro Benzene?+
Its CAS Registry Number is 2268-05-5, with EC number 607-128-1 (single source; not independently cross-confirmed), molecular formula C₆H₃Cl₂F and a molar mass of 165.00 g/mol.
03What purity grades does Chelora Chemicals supply?+
We supply technical grade and high-purity grade — the exact figures are shown in the specification rail at the top of this page. Each batch ships with a certificate of analysis stating assay, isomer purity and moisture against the agreed specification.
04Is 2,6-Dichloro Fluoro Benzene hazardous?+
Yes. It carries the GHS signal word Warning with the hazard statements listed in the hazard section of this page. It should be handled with appropriate PPE and in line with the safety data sheet supplied with each shipment.
05Is this a liquid or a solid?+
A solid. It is a crystalline material with a melting point of 37–40 °C, only modestly above typical warm-climate ambient temperature. We've seen at least one supplier datasheet describe it as a liquid, which two other independent sources contradict — we specify and ship it as the crystalline solid it is, and recommend treating any "liquid" reference elsewhere with caution.
06Is this the same compound as 2,4-Dichloro Fluoro Benzene?+
No — different isomer, different CAS number (2268-05-5 vs. 1435-48-9), different physical state (this one is a solid; the 2,4-isomer is a liquid). Confirm the CAS number on your order matches the isomer you require.
07Why does the hazard classification shown here differ slightly from some other sources?+
Two independent SDS-based sources we checked for this compound disagree on part of the hazard statement set. Rather than silently pick one, we've noted the discrepancy and recommend checking the SDS shipped with your specific lot as the governing document.
08What packing options are available?+
Standard packing is 25 kg bags, with drums / jumbo bags available for bulk orders. Trial quantities from a single drum can usually be arranged before you commit to larger volumes.
09How long does delivery take?+
Typical lead time is two to four weeks plus transit, depending on whether the grade is ex-stock or made to order and your destination port. A firm date is confirmed in the written quotation.
10Can I get a sample before placing a bulk order?+
Yes. Pre-shipment samples and a batch certificate of analysis can be arranged so your QC team can verify the specification before committing to volume.
11How is 2,6-Dichloro Fluoro Benzene manufactured?+
A polychlorinated benzene precursor. Halex (halogen-exchange) fluorination with a fluoride source such as potassium fluoride is the usual industrial route, followed by washing and distillation or recrystallisation before packing.
12What is the shelf life, and how should it be stored?+
Typical shelf life is around 24 months in original, unopened packaging stored as described in the storage section of this page. If a batch is held beyond its shelf life, we recommend re-checking assay and moisture before use.
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