2,3-Dichloro Nitro Benzene
A dichlorinated nitroaromatic intermediate supplied by Chelora Chemicals — a byproduct-isomer cut from 1,2-dichlorobenzene nitration, kept available for buyers whose synthesis specifically calls for the 2,3-substitution pattern — exported from Indonesia with full batch documentation on every shipment.
What 2,3-Dichloro Nitro Benzene is, and why buyers source it
A working overview of the compound's chemistry, how it arises from 1,2-dichlorobenzene nitration, and the grades Chelora Chemicals keeps in regular supply.
2,3-Dichloro Nitro Benzene is a benzene ring carrying chlorine atoms at the 1 and 2 positions and a nitro group at position 3, adjacent to one of the two chlorines. Unlike the 2,5- and 3,4-dichloronitrobenzene isomers elsewhere in our range, which are produced as the deliberate major products of their respective nitrations, this isomer arises as a secondary product of nitrating 1,2-dichlorobenzene — a useful reminder that dichlorobenzene nitration gives a mixture of regiochemical outcomes, not a single clean product, and that isomer separation is central to how all of these materials reach commercial purity.
At room temperature it is a light yellow to light brown crystalline powder. It is practically insoluble in water but dissolves in common organic solvents, and like other nitroaromatics is handled as a toxic and environmentally persistent material rather than a benign commodity solid.
Where it fits in the synthesis chain
Reduction of the nitro group gives 2,3-dichloroaniline, a specialty aniline used in agrochemical and dye intermediate chemistry where the particular pattern of two adjacent chlorines plus an amine is called for. Because this isomer is a minor co-product of 1,2-dichlorobenzene nitration rather than its dominant product, available commercial volumes are smaller than for the 2,5- or 3,4-substituted isomers, and buyers with isomer-specific process needs should confirm volume and lead time with our desk before committing a process to it.
Grades we supply
Chelora Chemicals offers 2,3-Dichloro Nitro Benzene in technical grade (≈97% assay) for standard industrial synthesis, and high-purity grade (98%+) for applications sensitive to isomeric carryover. Both grades are supplied with a batch-wise certificate of analysis.
How 2,3-Dichloro Nitro 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.
2,3-Dichloro Nitro Benzene is obtained as a byproduct of the nitration of 1,2-dichlorobenzene with a mixed nitric/sulfuric acid system. The two chlorine substituents direct the incoming nitro group to several possible ring positions; the 4-position (giving 1,2-dichloro-4-nitrobenzene, better known as 3,4-dichloronitrobenzene by an alternative numbering) is the dominant product of this nitration, with the 3-position product covered on this page forming as a smaller co-product that is isolated separately during the downstream purification train.
After nitration, the crude mixture is separated from the spent acid, washed, and fractionally crystallised to isolate each isomer to the purity required, with this isomer typically recovered from an intermediate purification cut rather than as the primary product stream.
Why isomer identity matters to buyers
Because several dichloronitrobenzene isomers can arise from related dichlorobenzene nitrations, confirming the exact substitution pattern (2,3- versus 2,5- versus 3,4-) against your process requirements before ordering is important — the chemistry downstream, and the available bulk volumes, differ meaningfully between them.
Industries and processes that use it
2,3-Dichloro Nitro Benzene is consumed mainly as a specialty intermediate where the 2,3-substitution pattern is specifically required. The fields below cover the uses we see most often through our export desk.
Agrochemical Intermediate Chemistry
Reduction to 2,3-dichloroaniline feeds agrochemical synthesis routes that specifically call for this substitution pattern.
Dye & Pigment Intermediate Chemistry
2,3-Dichloroaniline and related derivatives are used in some dye and pigment intermediate synthesis.
Fine-Chemical & Specialty Synthesis
Supplied as a specialty building block for synthesis routes that need the adjacent-chlorine, ortho-nitro substitution pattern specifically.
Research & Toxicology Reference Chemical
Used in environmental and toxicological research, including published studies of aquatic toxicity reference organisms, as a well-characterised dichloronitrobenzene reference compound.
How the molecule is typically carried forward
The nitro group is the principal reactive handle for reduction chemistry, with the two chlorines generally carried through unchanged. Reaction classes below cover the main ways this material is converted into a finished intermediate.
Reduction to 2,3-Dichloroaniline
Catalytic hydrogenation or chemical reduction converts the nitro group to a primary amine while leaving both chlorines in place, giving 2,3-dichloroaniline.
Diazotization of the Reduced Amine
Once reduced to the amine, 2,3-dichloroaniline diazotizes under standard cold, acidic conditions for azo-coupling chemistry in dye and pigment manufacture.
Acylation of the Reduced Amine
2,3-Dichloroaniline can be acylated at the amine nitrogen to give amide derivatives used in some agrochemical synthesis routes.
Limited Reactivity at the Chlorines
Neither chlorine is strongly activated for nucleophilic aromatic substitution by a single adjacent nitro group in this substitution pattern, so both are generally carried through unchanged in downstream chemistry rather than displaced.
2,3-Dichloro Nitro Benzene against other isomers and nitroaromatics we supply
Buyers sourcing this isomer sometimes actually need the 2,5- or 3,4-substituted dichloronitrobenzene instead. A quick reference to what else is on our regular supply list.
| Product | CAS Number | Category | Notes |
|---|---|---|---|
| 2,3-Dichloro Nitro Benzene | 3209-22-1 | Di-chloro mono-nitro aromatic | The product on this page — a secondary co-product of 1,2-dichlorobenzene nitration. |
| 2,5-Dichloronitrobenzene | 89-61-2 | Di-chloro mono-nitro aromatic | A different substitution pattern — see its product page. |
| 3,4-Dichloronitrobenzene | 99-54-7 | Di-chloro mono-nitro aromatic | The dominant isomer from the same dichlorobenzene nitration family — see its product page. |
| 2,3,4-Trichloro Nitro Benzene | 17700-09-3 | Tri-chloro mono-nitro aromatic | A further-chlorinated relative in our range — see its product page. |
Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide, not a specification sheet, for products other than 2,3-Dichloro Nitro Benzene.
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.
Harmful if swallowed.
May cause an allergic skin reaction.
May cause damage to organs through prolonged or repeated exposure.
Toxic to aquatic life, with long-lasting effects.
Treat as persistent and toxic in the aquatic environment; avoid any release to drains or waterways.
Impervious gloves, splash-proof eye protection and suitable respiratory protection are the baseline for routine handling.
Crystalline powder can generate dust; local exhaust ventilation is recommended during transfer and weighing.
Warning — GHS07 harmful and GHS09 environmental hazard pictograms apply.
This compound is a skin sensitiser and may cause organ damage with prolonged or repeated exposure, and it is toxic to aquatic life with long-lasting effects; impervious gloves, eye protection and suitable respiratory protection are recommended for routine handling, and any skin contact or release to the environment should be avoided. Full first-aid, storage, spill and PPE guidance is in the MSDS issued with every shipment, and should be read in full before this material is handled.
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.
Store in a cool, dry, well-ventilated area away from direct sunlight and ignition sources, in tightly closed original packaging, segregated from strong oxidizing and strong reducing materials. Avoid generating or accumulating dust during handling. If a batch is held past its retest date, re-check assay, melting point and isomer content before use.
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.
What travels with every batch
Specification is agreed before the purchase order, not discovered on arrival. Every shipment of 2,3-Dichloro Nitro Benzene leaves with a documented, checkable paper trail.
Certificate of Analysis
Batch-wise assay, melting point range, isomer content and colour, issued against the agreed specification so your QC team can check it, not just file it.
Safety Data Sheet
GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.
Technical Data Sheet
Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.
Certificate of Origin
Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.
Dangerous Goods Declaration
UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.
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.
Frequently asked questions
What buyers most often ask our sales desk about this grade.
01What is 2,3-Dichloro Nitro Benzene used for?+
02What is the CAS number of 2,3-Dichloro Nitro Benzene?+
03How is 2,3-Dichloro Nitro Benzene made?+
04What purity grades does Chelora Chemicals supply?+
05Is 2,3-Dichloro Nitro Benzene hazardous?+
06How is this different from 2,5- and 3,4-Dichloronitrobenzene?+
07What packing options are available?+
08How long does delivery take?+
09Can I get a sample before placing a bulk order?+
10Do you supply other dichloronitrobenzene isomers?+
Need 2,3-Dichloro Nitro Benzene on spec, on time?
Send us your required purity, quantity, packing preference and destination port. Our desk quotes most enquiries within one working day.