CAS 121-73-3 · Meta Nitrochlorobenzene

Meta Nitrochlorobenzene: direct from source to Europe

Meta Nitrochlorobenzene (CAS 121-73-3) is a pale yellow crystalline solid, the meta isomer of nitrochlorobenzene, used as an intermediate for m-chloroaniline, m-phenylenediamine and downstream dyes and pigments.

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

Meta Nitrochlorobenzene: 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: Meta Nitrochlorobenzene, CAS 121-73-3.

  • Confirmed CAS number on every COA
  • Premium grade with GC purity 99%+ available
  • TDS and SDS supplied with every shipment
Common name
Meta Nitrochlorobenzene
Synonyms
m-Nitrochlorobenzene · 1-Chloro-3-nitrobenzene · m-NCB
CAS number
121-73-3
Formula / MW
C6H4ClNO2  /  157.56 g/mol
Chemical family
Nitrochlorobenzene
HS code
2904 (halogenated, sulfonated, nitrated or nitrosated derivatives of hydrocarbons). Confirm the full code with your broker.

⚠ Not the same as Ortho Nitrochlorobenzene (88-73-3) or Para Nitrochlorobenzene (100-00-5). Always match CAS 121-73-3.

Technical data

Meta Nitrochlorobenzene 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
44–46 °C
Typical value
Boiling point
Approx. 236 °C
Typical value
Molecular weight
157.56
g/mol
Molecular formula
C6H4ClNO2
Nitrochlorobenzene
Solubility
Very low in water
Soluble in common organic solvents
Physical form
Solid
May melt in warm transit
Storage
Cool & dry
Closed container, away from light and reducing agents
Quality & specification

Meta Nitrochlorobenzene 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
GC purity
≥ 98.0%
≥ 99.0%
GC area %
Ortho + para isomer
≤ 1.5%
≤ 0.5%
GC
Moisture
≤ 0.2%
≤ 0.1%
Karl Fischer titration
Melting range
43–46 °C
44–46 °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 Meta Nitrochlorobenzene is used

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

Aniline intermediate

Catalytic or chemical reduction to m-chloroaniline.

Dye and pigment intermediate

Feed for m-phenylenediamine and azo/disperse dyes.

Pharmaceutical intermediate

Aryl chloride and nitro handle for further functionalisation.

Custom synthesis

Starting material for contract synthesis of nitro-chloro aromatics.

Packaging & logistics

Packed to your site, documented for customs

Meta Nitrochlorobenzene 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

Meta Nitrochlorobenzene: frequently asked questions

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

It is also sold as m-Nitrochlorobenzene, 1-Chloro-3-nitrobenzene, m-NCB. All refer to CAS 121-73-3. 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.

Meta Nitrochlorobenzene (CAS 121-73-3) is a pale yellow crystalline solid, the meta isomer of nitrochlorobenzene, used as an intermediate for m-chloroaniline, m-phenylenediamine and downstream dyes and pigments.

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

The three isomers differ in the position of the chlorine relative to the nitro group. Meta (121-73-3) gives m-chloroaniline on reduction, while ortho (88-73-3) and para (100-00-5) give different anilines used in different dye, rubber-chemical and agro routes. Order by CAS to get the isomer you need.

Nitrochlorobenzenes can face REACH and other restrictions 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 light, strong reducing agents and oxidisers. Use within the shelf life stated on the COA and TDS.

It is treated as a 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 Meta Nitrochlorobenzene 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