Herbicide intermediate
3,4-Dichloroaniline (3,4-DCA) Supplier & Distributor in India & Worldwide
Chelora Agrochem is a trusted 3,4-Dichloroaniline (3,4-DCA) supplier and distributor in India, connecting buyers with high-purity material sourced from leading, quality-approved manufacturers. Our 3,4-Dichloroaniline meets 99% min purity with consistent quality, full documentation and reliable bulk supply across India and to buyers worldwide.
As a specialised distributor of chemical products, we do not manufacture in-house — instead we source only from reliable, audited manufacturers, giving you dependable material, competitive pricing and a single point of contact for all your 3,4-DCA requirements, backed by COA, MSDS and TDS on every order.
- CAS number
- 95-76-1
- Formula
- C6H5Cl2N
- Molecular weight
- 162.02 g/mol
- Purity
- 99% min
Quick product specifications
3,4-Dichloroaniline at a glance
Identifiers, physical data and trade codes for 3,4-DCA. Batch-specific figures are confirmed on the Certificate of Analysis supplied with each consignment, in India and on export shipments alike.
- Chemical name
- 3,4-Dichloroaniline
- CAS number
- 95-76-1
- Molecular formula
- C6H5Cl2N
- Molecular weight
- 162.02 g/mol
- IUPAC name
- 3,4-Dichloroaniline
- HS code
- 2921 42 90
- UN number
- UN 3442Dichloroanilines, solid — class 6.1
- Appearance
- Light tan to grey-brown crystalline solidDarkens on prolonged storage
- Melting point
- 71–72 °C
- Boiling point
- 272 °C
- Density
- 1.57 g/cm3
- Flash point
- 166 °C
- Solubility
- Practically insoluble in water92 mg/L at 20 °C; soluble in organic solvents
- Purity
- 99% min
- Moisture
- 0.5% max
- Synonyms
- 3,4-DCA1-Amino-3,4-dichlorobenzene · 4-Amino-1,2-dichlorobenzene
- Product form
- Solid — bags, drums
- Documentation
- COA, MSDS & TDSSupplied with every order
Product overview
What is 3,4-Dichloroaniline?
3,4-Dichloroaniline (3,4-DCA) is an aromatic amine used mainly as the key intermediate for phenylurea and anilide herbicides — diuron, linuron, neburon and propanil — as well as for dyes, pigments and pharmaceutical intermediates. The chlorine atoms at the 3- and 4-positions are what give these actives their stability and soil persistence.
With the formula C6H5Cl2N (CAS 95-76-1), 3,4-DCA is a light tan to grey-brown crystalline solid produced by catalytic hydrogenation of 3,4-dichloronitrobenzene. It is sensitive to prolonged heat, light and air and darkens in storage, which is why sealed, cool, dark storage is specified.
Because the amino group is free and both chlorines are meta and para to it, 3,4-DCA reacts cleanly with phosgene, acid chlorides and diazotising agents — the three routes that account for almost all of its industrial consumption.
How it is made
3,4-DCA is obtained by catalytic hydrogenation of 3,4-dichloronitrobenzene under pressure over noble-metal catalysts, with additives that suppress dehalogenation and corrosion-resistant reactors.
What that means for your process
- Free amino group for phosgenation, acylation and diazotisation
- Chlorine positions fixed at 3 and 4 for consistent active yield
- Isomer and dechlorinated content controlled to grade, checked by GC
- Low moisture (0.5% max) for stable storage and handling
Applications
What is 3,4-Dichloroaniline used for?
3,4-Dichloroaniline is used primarily as a chemical intermediate. Its main applications, industry by industry, include:
Herbicides
The main use. 3,4-DCA is the aniline behind the phenylurea and anilide herbicide families.
- Core intermediate for diuron, linuron and neburon
- Acylated with propionyl chloride to give propanil
- Routed through 3,4-dichlorophenyl isocyanate for the ureas
Dyes & pigments
Diazotised and coupled to build azo dyes and organic pigments with good fastness.
- Diazo component in azo colourant synthesis
- Intermediate for dye and pigment bases
Pharmaceuticals & fine chemicals
Used as a building block in API synthesis, including the antimalarial chlorproguanil, and in custom synthesis.
- Intermediate for pharmaceutical actives
- Custom synthesis and research scale-up
Process route
How is 3,4-Dichloroaniline used in herbicide manufacturing?
For the phenylurea herbicides, 3,4-DCA is converted to 3,4-dichlorophenyl isocyanate and then reacted with an amine — dimethylamine gives diuron, N-methoxy-N-methylamine gives linuron. For propanil, the same aniline is acylated directly with propionyl chloride, skipping the isocyanate step.
3,4-Dichloroaniline
Charged as the aromatic amine. Isomer purity and assay decide final active yield.
C6H5Cl2NPhosgenation
The amine is converted to the isocyanate under controlled temperature and scrubbing.
COCl2Urea formation
3,4-Dichlorophenyl isocyanate is reacted with dimethylamine or N-methoxy-N-methylamine.
Amine additionHerbicide active
Filtered, dried and finished into technical material — diuron, linuron or neburon.
DiuronIn depth
3,4-Dichloroaniline applications by industry
Below is a detailed breakdown of where 3,4-DCA is used and the role it plays in each downstream product.
| Industry | Typical downstream products | Role of 3,4-DCA |
|---|---|---|
| Herbicides (phenylurea) | Diuron, linuron, neburon | Core intermediate via the isocyanate |
| Herbicides (anilide) | Propanil | Acylation substrate |
| Dyes & pigments | Azo dyes and pigment bases | Diazo component |
| Pharmaceuticals | Chlorproguanil and other actives | Intermediate |
| Fine chemicals | Custom molecules | Precursor |
Safety
Is 3,4-Dichloroaniline hazardous?
Yes. 3,4-Dichloroaniline is a toxic aromatic amine and must be handled with care. It is toxic if swallowed, in contact with skin or if inhaled, causes serious eye damage, may cause an allergic skin reaction, and is very toxic to aquatic life with long-lasting effects. With correct PPE, ventilation and containment it is safely handled in industry.
3,4-DCA should be stored in sealed containers in a cool, dark, ventilated place away from heat, light, acids and oxidisers — it is incompatible with acid chlorides and anhydrides and decomposes at low pH. Prevent release to drains and waterways. A full MSDS is supplied with every order.
Signal word: Danger
Toxic by ingestion, skin contact and inhalation · very toxic to aquatic life
Safe-handling essentials
- Gloves, goggles and respiratory protection at all times
- Work with local exhaust ventilation; avoid dust generation
- Keep containers sealed, cool, dry and out of direct light
- Store away from heat, acids, acid chlorides and oxidisers
- Watch for skin sensitisation — avoid all skin contact
- Never allow release to drains, soil or waterways
- Transport as UN 3442 — a regulated dangerous good
Grades
3,4-Dichloroaniline grades & technical specifications
We supply 3,4-Dichloroaniline in commercial grades to match herbicide, dye and pharmaceutical requirements.
| Parameter | Specification |
|---|---|
| Assay (purity) | 99% min |
| Appearance | Light tan to grey-brown crystalline solid / flakes |
| Melting point | 70–72 °C |
| Moisture | 0.5% max |
| Isomer purity | As per grade |
| Aniline content | As per grade |
| Product form | Solid — bags, drums |
Note: Values are representative. Batch-specific figures are provided on the Certificate of Analysis (COA) supplied with each consignment.
Supply
Packaging, MOQ & supply
From trial quantities for process validation to repeat container loads on contract — packed, documented and dispatched to your plant in India or overseas.
Packaging
25/50 kg bags, fibre or MS drums, and liners as per grade and quantity.
Minimum order quantity
Flexible — trial quantities through to full-container bulk loads.
Shelf life
Long shelf life when stored sealed, cool, dry and dark; the solid darkens if exposed to light and air.
Dispatch
Pan-India dispatch and worldwide export with complete documentation and logistics support.
Why buy from us
Why choose Chelora as your 3,4-DCA supplier?
As an established 3,4-Dichloroaniline supplier and distributor based in India and shipping worldwide, we work with a wide network of trusted manufacturers to combine consistent quality with dependable service. More about Chelora Agrochem.
High purity, every batch
99% min assay, sourced only from quality-approved manufacturers we have worked with and audited.
Full documentation
COA, MSDS and TDS travel with every order, so your QA and EHS teams are never chasing paperwork.
Reliable bulk supply, flexible MOQ
Trial packs for process trials through to repeat container loads on schedule.
Worldwide supply
Export-grade packing, documentation and on-time dispatch to plants across Asia, the Middle East, Europe, Africa and the Americas.
Technical & safe-handling support
Guidance on storage, PPE and process fit from a team that knows aromatic amines.
One point of contact
Source 3,4-DCA alongside your other intermediates — one enquiry, one team, one invoice.
Ordering
How to order 3,4-Dichloroaniline from Chelora
Ordering is simple and fast — most enquiries are answered with pricing and availability within 24 hours.
- 1
Send your enquiry
Tell us the grade, quantity and application you are buying for.
- 2
Receive a quotation
We send pricing along with the COA and MSDS for your review.
- 3
Request a sample
Test suitability for your process before you commit to a bulk order.
- 4
Confirm the order
Lock in quantity, packaging and delivery preference.
- 5
Dispatch & tracking
We dispatch with full documentation and keep you updated until delivery.
Documentation
3,4-Dichloroaniline MSDS & COA
A summary of key safety information and a representative Certificate of Analysis. The complete 16-section Safety Data Sheet and the actual batch COA are supplied with each shipment — and both are sent with your quotation when you ask for a quote.
Safety data summary (MSDS)
| Section | Details |
|---|---|
| Hazard classification | Toxic (oral / dermal / inhalation); serious eye damage; skin sensitiser; very toxic to aquatic life |
| Signal word | Danger |
| First aid — inhalation | Move to fresh air; seek medical help |
| First aid — skin | Remove clothing; wash with soap & water |
| First aid — eyes | Rinse thoroughly with water; get medical advice immediately |
| Handling | Use PPE; avoid dust; ventilate |
| Storage | Cool, dry, dark, sealed; away from heat, acids & oxidisers |
| Stability | Sensitive to heat, light and air; darkens in storage; decomposes at low pH |
| Environment | Prevent release to drains / waterways |
| Transport | UN 3442; class 6.1; regulated dangerous good |
Certificate of Analysis (representative)
| Test parameter | Specification | Method |
|---|---|---|
| Assay (purity) | 99% min | GC |
| Appearance | Tan to grey-brown solid | Visual |
| Melting point | 70–72 °C | Capillary |
| Moisture | 0.5% max | Karl Fischer |
| Isomer content | As per grade | GC |
The actual batch COA is supplied with each shipment.
FAQ
Frequently asked questions
Common questions from buyers specifying 3,4-Dichloroaniline for herbicide, dye and pharmaceutical production.
What is 3,4-Dichloroaniline used for?
3,4-DCA is used mainly as an intermediate for herbicides such as diuron, linuron, neburon and propanil, and also in azo dyes and pigments and in pharmaceutical intermediates.
What is the CAS number of 3,4-Dichloroaniline?
The CAS number is 95-76-1 and the molecular formula is C6H5Cl2N. It is also known as 3,4-DCA or 1-amino-3,4-dichlorobenzene.
Which herbicides are made from 3,4-DCA?
Diuron and propanil are the largest volume products, along with linuron and neburon. The urea herbicides go through 3,4-dichlorophenyl isocyanate; propanil is made by direct acylation.
Is 3,4-Dichloroaniline hazardous?
Yes, it is toxic by ingestion, skin contact and inhalation, causes serious eye damage and is very toxic to aquatic life. It must be handled with proper PPE, ventilation and containment; we supply a full MSDS with every order.
What is the difference between 3,4-DCA and 2,5-DCA?
Both share the formula C6H5Cl2N but differ in chlorine positions. 3,4-DCA is used mainly for herbicides such as diuron and propanil, while 2,5-DCA is used mainly in dyes and pigments such as Pigment Yellow 10.
How should 3,4-DCA be stored?
In sealed bags or drums in a cool, dark, well-ventilated store, away from heat, acids and oxidisers. The solid is sensitive to heat, light and air and darkens over time, so keep packs closed until use.
Do you provide COA and MSDS for 3,4-DCA?
Yes, we provide a batch-specific COA and MSDS with every order, plus technical support on request.
Do you supply and export 3,4-Dichloroaniline?
Yes, we supply 3,4-DCA across India and export internationally with complete documentation, sourced from reliable manufacturers.
Request a quote or sample
Need a reliable 3,4-DCA supplier?
Looking for a dependable 3,4-Dichloroaniline (3,4-DCA) supplier and distributor — in India or anywhere we export to? Tell us the grade and quantity you need — our team responds with competitive bulk pricing, samples and complete documentation (COA, MSDS, TDS) within 24 hours.
Or email source@cheloraagrochem.com