CAS 88-74-4 · Ortho Nitroaniline

Ortho Nitroaniline: direct from source to Europe

Ortho Nitroaniline (CAS 88-74-4) is an orange crystalline solid, the ortho isomer of nitroaniline, used as the principal intermediate for o-phenylenediamine and a wide range of dyes and pigments.

  • 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

Ortho Nitroaniline: 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: Ortho Nitroaniline, CAS 88-74-4.

  • Confirmed CAS number on every COA
  • Premium grade with HPLC purity 99%+ available
  • TDS and SDS supplied with every shipment
Common name
Ortho Nitroaniline
Synonyms
o-Nitroaniline · 2-Nitroaniline · 2-Nitrobenzenamine
CAS number
88-74-4
Formula / MW
C6H6N2O2  /  138.12 g/mol
Chemical family
Nitroaniline
HS code
2921 (amine-function compounds). Confirm the full code with your broker.

⚠ Not the same as Meta Nitroaniline (99-09-2) or Para Nitroaniline (100-01-6). Always match CAS 88-74-4.

Technical data

Ortho Nitroaniline 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
Orange to reddish-orange crystalline solid
Powder or crystals
Melting point
71–73 °C
Typical value
Boiling point
Approx. 284 °C
Typical value
Molecular weight
138.12
g/mol
Molecular formula
C6H6N2O2
Nitroaniline
Solubility
Low in water
Soluble in acetone, ethanol and benzene
Physical form
Solid
At room temperature
Storage
Cool & dry
Away from light, oxidisers and reducing agents
Quality & specification

Ortho Nitroaniline 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 %
Meta + para isomer
≤ 1.0%
≤ 0.3%
HPLC
Moisture
≤ 0.3%
≤ 0.1%
Karl Fischer titration
Melting range
70–73 °C
71–73 °C
Capillary method
Appearance
Orange to reddish-orange crystalline solid
Orange to reddish-orange 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 Ortho Nitroaniline is used

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

o-Phenylenediamine intermediate

Catalytic or chemical reduction to o-phenylenediamine for benzimidazole fungicides and dyes.

Sulfur and azo dye intermediate

Diazo and condensation component for dyes.

Pigment manufacture

Feed for specialty azo and heterocyclic pigments.

Custom synthesis

Starting material for contract synthesis of nitroaniline derivatives.

Packaging & logistics

Packed to your site, documented for customs

Ortho Nitroaniline 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

Ortho Nitroaniline: frequently asked questions

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

It is also sold as o-Nitroaniline, 2-Nitroaniline, 2-Nitrobenzenamine. All refer to CAS 88-74-4. 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.

Ortho Nitroaniline (CAS 88-74-4) is an orange crystalline solid, the ortho isomer of nitroaniline, used as the principal intermediate for o-phenylenediamine and a wide range of dyes and pigments.

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

The three isomers differ in the position of the nitro group relative to the amine. Ortho (88-74-4) gives o-phenylenediamine on reduction, the intermediate for benzimidazole fungicides, while meta (99-09-2) and para (100-01-6) feed different dye routes. Order by CAS to get the isomer you need.

Aromatic amines 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, protected from light, air and strong oxidisers, which can darken and degrade the amine. 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 Ortho Nitroaniline 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