Agro, pharma & dye intermediate
Para Chloro Aniline (4-Chloroaniline) Supplier & Distributor in India & Worldwide
Chelora Agrochem is a trusted Para Chloro Aniline (PCA) supplier and distributor in India, connecting buyers with high-purity material sourced from leading, quality-approved manufacturers. Our 4-Chloroaniline meets 99.5% min purity with low aniline and isomer content, 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 PCA requirements, backed by COA, MSDS and TDS on every order.
- CAS number
- 106-47-8
- Formula
- C6H6ClN
- Molecular weight
- 127.57 g/mol
- Purity
- 99.5% min
Quick product specifications
Para Chloro Aniline at a glance
Identifiers, physical data and trade codes for PCA. Batch-specific figures are confirmed on the Certificate of Analysis supplied with each consignment, in India and on export shipments alike.
- Chemical name
- 4-Chloroaniline
- CAS number
- 106-47-8
- EC number
- 203-401-0
- Molecular formula
- C6H6ClN
- Molecular weight
- 127.57 g/mol
- IUPAC name
- 4-Chloroaniline
- HS code
- 2921 42 11
- UN number
- UN 2018Chloroanilines, solid — class 6.1, PG II
- Appearance
- White to pale-yellow crystalline solidFlakes or lumps; darkens on exposure to air and light
- Melting point
- 69–72.5 °CSetting point 69 °C min for commercial grade
- Boiling point
- 232 °C
- Density
- 1.43 g/cm³ (solid)
- Flash point
- ~113 °C
- Solubility
- Slightly soluble in waterAbout 2.6 g/L at 20 °C; freely soluble in ethanol, acetone and most organic solvents
- Purity
- 99.5% min
- Moisture
- 0.2% max
- Synonyms
- PCAp-Chloroaniline · 1-Amino-4-chlorobenzene · 4-Chlorobenzenamine
- Product form
- Flakes / crystalline solid — bags and drums
- Documentation
- COA, MSDS & TDSSupplied with every order
Product overview
What is Para Chloro Aniline?
Para Chloro Aniline (4-chloroaniline, PCA) is a chlorinated aromatic amine and one of the most widely used aniline intermediates in crop protection, pharmaceuticals and colours. It is the starting point for the antiseptic chlorhexidine, for fungicides such as pyraclostrobin, for benzoylurea insecticides such as diflubenzuron and for phenylurea herbicides — in every case the para chlorine is carried into the finished molecule.
With the formula C6H6ClN (CAS 106-47-8), PCA is a white to pale-yellow crystalline solid that melts at about 70 °C and darkens with air and light. It is not made by chlorinating aniline, which over-chlorinates; instead it is produced by reducing 4-nitrochlorobenzene — the same nitro-reduction logic used for Para Toluidine.
Because the amino group is free and the chlorine sits para to it, PCA converts cleanly into 4-chlorophenyl isocyanate, 4-chlorophenylhydrazine, biguanides and diazonium salts — which is why agrochemical and API producers specify it by assay, aniline content and isomer purity.
How it is made
Chlorobenzene is nitrated and the para isomer, 4-nitrochlorobenzene, is separated from the ortho isomer. It is then reduced — by catalytic hydrogenation or iron (Béchamp) reduction — to 4-chloroaniline, which is purified by distillation and flaked.
What that means for your process
- Free amino group for phosgenation, diazotisation and condensation
- Para chlorine retained intact through downstream steps
- Aniline and ortho / meta isomers controlled to grade, checked by GC
- Low moisture and colour for clean reactions and stable storage
Applications
What is Para Chloro Aniline used for?
PCA is used as an intermediate in the synthesis of agrochemicals, pharmaceuticals and dyes. Its main applications, industry by industry, include:
Agrochemicals
The largest use. PCA supplies the 4-chlorophenyl group found in many crop-protection actives.
- Strobilurin fungicides such as pyraclostrobin, via 4-chlorophenylhydrazine
- Benzoylurea insecticides such as diflubenzuron
- Urea and organophosphate herbicides — monolinuron, anilofos
Pharmaceuticals & antiseptics
A long-established entry point for chlorinated drug and biocide molecules.
- Key raw material for chlorhexidine
- Triclocarban, made together with 3,4-dichloroaniline
- Building block in API and custom synthesis
Dyes & fine chemicals
Diazotised and coupled to give azo colours with good fastness.
- Diazo component for azo dyes and pigments
- Reagent and building block in research and analytical work
Process route
How is Para Chloro Aniline used downstream?
PCA enters a synthesis through its amino group. It is converted to an isocyanate, hydrazine, biguanide or diazonium salt, that reactive handle is coupled or cyclised, and the para chlorine rides through untouched into the finished active or colour.
Para Chloro Aniline
Charged as the chlorinated amine. Assay and aniline content decide downstream purity.
C6H6ClNActivation
The amine is phosgenated, diazotised or reacted with cyanoguanidine to give the reactive intermediate.
Isocyanate / hydrazine / biguanideCoupling or ring closure
The intermediate is coupled to its partner or cyclised into the urea, pyrazole or azo core.
4-Chlorophenyl coreFinished product
Purified into the crop-protection active, API or colour, chlorine intact.
Active, API or dyeIn depth
Para Chloro Aniline applications by industry
Below is a detailed breakdown of where PCA is used and the role it plays in each downstream product.
| Industry | Typical downstream products | Role of PCA |
|---|---|---|
| Agrochemicals | Pyraclostrobin (strobilurin fungicide) | Via 4-chlorophenylhydrazine |
| Agrochemicals | Diflubenzuron (benzoylurea insecticide) | Via 4-chlorophenyl isocyanate |
| Agrochemicals | Monolinuron, anilofos (herbicides) | Aniline building block |
| Pharmaceuticals | Chlorhexidine (antiseptic) | Core raw material |
| Personal care | Triclocarban (antimicrobial) | Isocyanate partner to 3,4-DCA |
| Dyes & pigments | Azo dyes and pigments | Diazo component |
Safety
Is Para Chloro Aniline hazardous?
Yes. 4-Chloroaniline is toxic if swallowed, in contact with skin or if inhaled, may cause an allergic skin reaction, may cause cancer and is very toxic to aquatic life with long-lasting effects. Like other aromatic amines it is absorbed through the skin and can cause methaemoglobinaemia. With correct PPE, ventilation and containment it is safely handled in industry.
PCA should be stored in sealed containers in a cool, dry, dark and well-ventilated place away from acids, acid chlorides, anhydrides and strong oxidisers. It darkens with air and light, so keep packs closed between uses. Prevent any release to drains and waterways. A full MSDS is supplied with every order.
Signal word: Danger
Toxic by all routes · may cause cancer · very toxic to aquatic life
Safe-handling essentials
- Chemical-resistant gloves, goggles and protective clothing — PCA is absorbed through the skin
- Handle flakes with dust control and local exhaust; use respiratory protection where dust or vapour may form
- Keep containers sealed, dry and out of direct light
- Store away from acids, acid chlorides, anhydrides and oxidisers
- Wash thoroughly after handling; no eating or drinking in work areas
- Never allow release to drains, soil or waterways
- Transport as UN 2018 — a regulated dangerous good
Grades
Para Chloro Aniline grades & technical specifications
We supply PCA in technical and high-purity grades to match agrochemical, pharmaceutical and dye requirements.
| Parameter | Specification |
|---|---|
| Assay (purity) | 99.5% min |
| Appearance | White to pale-yellow flakes or crystalline solid |
| Setting point | 69 °C min |
| Aniline | 0.2% max |
| Other chloroaniline isomers | 0.5% max |
| Moisture | 0.2% max |
| Colour | As per grade |
| Product form | Flakes / crystalline solid — bags and 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 kg or 50 kg HDPE bags with liner, or 50 kg HDPE / fibre drums, as per grade and quantity.
Minimum order quantity
Flexible — single bags or drums for trials through to full-container loads.
Shelf life
Long shelf life in sealed, unopened packs stored cool, dry and away from light.
Dispatch
Pan-India dispatch and worldwide export with complete documentation and logistics support.
Why buy from us
Why choose Chelora as your PCA supplier?
As an established Para Chloro Aniline 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
99.5% 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 work 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, dust control, PPE and process fit from a team that knows aromatic amines.
One point of contact
Source PCA alongside your other intermediates — one enquiry, one team, one invoice.
Ordering
How to order Para Chloro Aniline 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
Para Chloro Aniline 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); skin sensitiser; may cause cancer (Carc. 1B); very toxic to aquatic life with long-lasting effects |
| Signal word | Danger |
| First aid — inhalation | Move to fresh air; seek medical help |
| First aid — skin | Remove contaminated clothing; wash with soap & plenty of water; get medical advice |
| First aid — eyes | Rinse with water for at least 15 minutes; get medical advice |
| First aid — ingestion | Rinse mouth; call a doctor immediately — watch for cyanosis (methaemoglobinaemia) |
| Handling | Use PPE; avoid dust and vapour; ventilate |
| Storage | Cool, dry, dark, sealed; away from acids and oxidisers |
| Decomposition | Emits nitrogen oxides, carbon oxides and hydrogen chloride on burning |
| Environment | Prevent release to drains / waterways |
| Transport | UN 2018; class 6.1; PG II; regulated dangerous good |
Certificate of Analysis (representative)
| Test parameter | Specification | Method |
|---|---|---|
| Assay (purity) | 99.5% min | GC |
| Appearance | White to pale-yellow flakes | Visual |
| Setting point | 69 °C min | Setting-point apparatus |
| Aniline | 0.2% max | GC |
| Other isomers | 0.5% max | GC |
| Moisture | 0.2% max | Karl Fischer |
The actual batch COA is supplied with each shipment.
FAQ
Frequently asked questions
Common questions from buyers specifying Para Chloro Aniline for agrochemical, pharmaceutical and dye production.
What is Para Chloro Aniline used for?
PCA is used as an intermediate for agrochemicals such as pyraclostrobin, diflubenzuron, monolinuron and anilofos, for the antiseptic chlorhexidine, and for azo dyes, pigments and fine chemicals.
What is the CAS number of Para Chloro Aniline?
The CAS number is 106-47-8 and the molecular formula is C6H6ClN. It is also known as PCA, 4-chloroaniline, p-chloroaniline or 1-amino-4-chlorobenzene.
How is Para Chloro Aniline manufactured?
By reducing 4-nitrochlorobenzene, usually by catalytic hydrogenation. The nitro compound is made by nitrating chlorobenzene and separating the para isomer; direct chlorination of aniline is not used because it over-chlorinates.
Is Para Chloro Aniline hazardous?
Yes. It is toxic by ingestion, skin contact and inhalation, may cause cancer, is a skin sensitiser and is very toxic to aquatic life. It must be handled with proper PPE, dust control and containment; we supply a full MSDS with every order.
What is the difference between PCA and the dichloroanilines?
PCA carries one chlorine, para to the amine. 2,4-Dichloroaniline and 3,4-dichloroaniline carry two chlorines and lead to different actives — 3,4-DCA to diuron, linuron and propanil, for example. We supply all three.
How should PCA be stored?
In sealed bags or drums in a cool, dry, dark and well-ventilated store, away from acids, acid chlorides and oxidisers. Keep packs closed between uses, as the solid darkens with air and light.
Do you provide COA and MSDS for PCA?
Yes, we provide a batch-specific COA and MSDS with every order, plus technical support on request.
Do you supply and export Para Chloro Aniline?
Yes, we supply PCA across India and export internationally with complete documentation, sourced from reliable manufacturers.
Request a quote or sample
Need a reliable PCA supplier?
Looking for a dependable Para Chloro Aniline (4-chloroaniline) 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