CAS 97-00-7 · 2,4-Dinitrochlorobenzene

2,4-Dinitrochlorobenzene: direct from source to Europe

2,4-Dinitrochlorobenzene (CAS 97-00-7) is a pale yellow crystalline solid, a highly reactive chloronitroaromatic used as an intermediate for dyes, pigments, rubber accelerators and pharmaceutical and analytical reagents.

  • COA, SDS & TDS with every batch
  • REACH status confirmed before quote
  • Samples available for qualification
Purityup to 99%+HPLC purity, premium grade
Lead time3 – 6 weeksOrigin to European port
FormSolid25 kg bags to bulk
Response1 business dayQuotation after receiving your spec
Product identification

2,4-Dinitrochlorobenzene: names, synonyms and identifiers

Buyers search for this material under several names. Whichever one appears on your specification, purchase order or REACH dossier, it is the same compound: 2,4-Dinitrochlorobenzene, CAS 97-00-7.

  • Confirmed CAS number on every COA
  • Premium grade with HPLC purity 99%+ available
  • TDS and SDS supplied with every shipment
Common name
2,4-Dinitrochlorobenzene
Synonyms
DNCB · 1-Chloro-2,4-dinitrobenzene · 2,4-Dinitro-1-chlorobenzene
CAS number
97-00-7
Formula / MW
C6H3ClN2O4  /  202.55 g/mol
Chemical family
Chlorodinitrobenzene
HS code
2904 (halogenated, sulfonated, nitrated or nitrosated derivatives of hydrocarbons). Confirm the full code with your broker.

⚠ Not the same as 2,6-Dinitrochlorobenzene (2213-83-4) or 1,3-dinitrobenzene. Always match CAS 97-00-7.

Technical data

2,4-Dinitrochlorobenzene physical and chemical properties

Key parameters for process engineering, safety planning and storage design. Values are typical; always verify against the current TDS for your lot.

Appearance
Pale yellow crystalline solid
Flakes or powder
Melting point
43–45 °C
Typical value
Boiling point
Approx. 315 °C
Typical value, decomposes near boiling
Molecular weight
202.55
g/mol
Molecular formula
C6H3ClN2O4
Chlorodinitrobenzene
Solubility
Very low in water
Soluble in acetone and hot alcohols
Physical form
Low-melting solid
May melt in warm transit
Storage
Cool & dry
Closed container, away from heat, light and reducing agents
Quality & specification

2,4-Dinitrochlorobenzene grade specifications: standard vs premium

Two grades are offered so your process chemist or quality team can pick what suits downstream requirements. COA parameters are confirmed before every shipment.

Parameter
Standard grade
Premium grade
Test method / note
HPLC purity
≥ 98.0%
≥ 99.0%
HPLC area %
Isomer content
≤ 1.0%
≤ 0.3%
HPLC; principally 2,6-isomer
Moisture
≤ 0.2%
≤ 0.1%
Karl Fischer titration
Melting range
42–45 °C
43–45 °C
Capillary method
Appearance
Pale yellow crystalline solid
Pale yellow crystalline solid
Visual check

All values are specification limits, not guaranteed minima. Actual COA figures for your lot are provided before dispatch. Non-standard specifications are available on enquiry.

Applications

Where 2,4-Dinitrochlorobenzene is used

Typical end uses and synthesis routes for European manufacturers, toll processors and laboratories.

Dye and pigment intermediate

Diazo and coupling reactions for azo and sulfur dyes.

Pharmaceutical and analytical reagent

Sanger-type reagent for peptide N-terminal analysis and API synthesis.

Rubber and specialty chemicals

Feed for rubber accelerators and antioxidants.

Custom synthesis

Starting material for contract synthesis of dinitrochlorobenzene derivatives.

Packaging & logistics

Packed to your site, documented for customs

2,4-Dinitrochlorobenzene is handled as a dangerous good. Every shipment leaves with UN-approved packaging, CLP labelling and the full document set for European import.

Bags

25 kg bags

UN-approved bags or lined fibre packs on pallets, suitable for FCL and LCL.

25 kg net
Drums

200 kg drums

UN-approved steel or fibre drums for higher volume users.

200 kg net
Bulk

Jumbo bags / bulk

Bulk bags for high-volume users, supplied on request for suitable receiving sites.

On request
Document set included: Bill of lading · Commercial invoice · Packing list · Certificate of analysis (COA) · Safety data sheet (SDS) · Dangerous goods declaration (IMDG/ADR) · Certificate of origin · Other certificates on request
Common questions

2,4-Dinitrochlorobenzene: frequently asked questions

Quick answers for European buyers. For anything else, email source@cheloragroup.com.

It is also sold as DNCB, 1-Chloro-2,4-dinitrobenzene, 2,4-Dinitro-1-chlorobenzene. All refer to CAS 97-00-7. Confirm the CAS number with any supplier before ordering.

Price depends on grade, volume, packing, Incoterm and destination port, and moves with raw material markets. Send us your requirement and we will quote in EUR or USD with a landed-cost breakdown, usually within one business day.

2,4-Dinitrochlorobenzene (CAS 97-00-7) is a pale yellow crystalline solid, a highly reactive chloronitroaromatic used as an intermediate for dyes, pigments, rubber accelerators and pharmaceutical and analytical reagents.

Standard grade offers 98.0% minimum HPLC purity. Premium grade offers 99.0% minimum with lower isomer content and moisture. Premium is recommended for pharmaceutical and analytical routes needing tight impurity control.

The two nitro groups strongly activate the ring toward nucleophilic aromatic substitution, so the chlorine is readily displaced by amines, alkoxides and other nucleophiles. This makes it a versatile but also sensitising reagent; it should be handled with appropriate PPE per the current SDS. Order by CAS (97-00-7).

2,4-Dinitrochlorobenzene is a potent skin sensitiser and can face REACH, CLP and workplace-exposure obligations depending on use. We confirm the current status for your application before quoting.

Store in closed containers in a cool, dry, ventilated place, away from heat, ignition sources, light, strong bases, amines and reducing agents. Use within the shelf life stated on the COA and TDS.

It is treated as a toxic dangerous good (class and UN number per SDS; always confirm on the current SDS). We pack it in UN-approved containers, apply CLP labels and ship through licensed forwarders under IMDG for sea and ADR for European road.

Yes. Laboratory and pilot samples are supplied with a COA and SDS so your team can qualify the grade. Mention sample needs in your enquiry.

REACH status is confirmed before we quote. We advise on importer-of-record arrangements and whether the substance is registered for your use. Send your use descriptor and we will confirm.

Ready to source?

Get your 2,4-Dinitrochlorobenzene quotation today

Send us the grade, volume, destination and Incoterm. You will receive a clear price, packaging options and a full document checklist, usually within one business day.

  • Samples to full containers
  • COA, SDS and DG documents included as standard
  • Quote in EUR or USD, your choice of Incoterm