Meta Chloroaniline
A simple monochlorinated aromatic amine, supplied as 3-chloroaniline for use as a diazo component across dye intermediate manufacture.
What is Meta Chloroaniline?
Meta Chloroaniline, formally 3-chloroaniline, is a clear pale yellow to brown liquid built on a benzene ring carrying a primary amine at C-1 and a single chlorine atom at the meta C-3 position.
That simple substitution pattern is what makes the molecule such a versatile building block. The amine diazotises readily under standard acidic conditions, and the meta chlorine gives the resulting diazonium salt clean, predictable coupling behaviour, making it a dependable diazo component for azo dye and pigment chemistry.
At Chelora Dyes, Meta Chloroaniline is distilled and packed under controlled conditions to a consistent colour and low moisture, so diazotisation and coupling reactions downstream run cleanly and give consistent, reproducible results batch to batch.
- Appearance
- Pale yellow to brown liquid
- Odour
- Characteristic amine
- Solubility
- Acetone, ether, ethanol
- Function
- Diazo component
- Grade
- Technical / dye
Meta-substituted chloroaniline
- Molecular formulaC6H6ClN
- Molecular weight127.57 g/mol
- IUPAC name3-Chloroaniline
- Functional groupsAromatic amine, aryl chloride
- CAS number108-42-9
Technical product information
Standard specification for Chelora Dyes' technical grade Meta Chloroaniline. Custom-grade and bulk specifications are available on request.
| Chemical name | Meta Chloroaniline |
|---|---|
| Synonyms | 3-Chloroaniline, m-Chloroaniline, MCA |
| CAS number | 108-42-9 |
| Molecular formula | C6H6ClN |
| Molecular weight | 127.57 g/mol |
| Assay (purity) | ≥ 98.0% |
| Appearance | Clear, pale yellow to brown liquid |
| Melting point | −11 to −9°C |
| Boiling point | 230–231°C |
| Moisture content | ≤ 0.5% |
| Solubility | Slightly soluble in water; miscible with acetone, ether and ethanol |
| Packaging | 25 kg / 200 kg drums, IBC totes for bulk |
| Shelf life | 24 months in sealed original packaging |
Applications of Meta Chloroaniline
Azo dye diazo component
Diazotised and coupled with phenolic or amine partners to build azo dye chromophores.
Pigment intermediates
A common building block feeding a range of organic pigment intermediates.
Dye & pigment chemistry
Feeds intermediates used across dye, pigment and specialty colourant manufacture.
Pharmaceutical intermediates
Used as a starting material in select pharmaceutical and fine chemical synthesis routes.
Analytical reagents
Used as a reference reagent in analytical and laboratory-scale synthesis work.
Custom synthesis
Supplied to order for custom manufacturing and contract synthesis projects.
Why choose Chelora Dyes
Consistent purity
Assay controlled at ≥98% with moisture and colour verified before dispatch.
Full documentation
COA, SDS, and regulatory data supplied with every shipment.
Flexible volumes
From 25 kg drums to bulk IBC tote quantities.
Technical support
Process, diazotisation, and compliance guidance from our chemistry team.
Storage and guidelines
- Store in tightly sealed original containers, protected from light.
- Keep below 30°C, in a cool, dry, well-ventilated area.
- Store under inert gas where practical, as the material darkens on air exposure.
- Segregate strictly from strong oxidising agents.
- Use compatible containers: lined steel or HDPE drums.
- Re-seal containers promptly after use to preserve assay specification.
Handling precautions
Meta Chloroaniline is classified as toxic by inhalation, in contact with skin and if swallowed, with aquatic toxicity; contact should be strictly avoided.
Use closed handling equipment, vapour extraction, and full PPE including chemically resistant gloves, goggles and, where indicated by the risk assessment, respiratory protection during transfer, charging and any bulk handling operation.
Keep away from strong oxidisers and sources of ignition.
Refer to the full Safety Data Sheet for exposure limits, spill containment, disposal, and first-aid measures before use.
Frequently asked questions
What is Meta Chloroaniline used for?
Meta Chloroaniline is used as a diazo component in the synthesis of azo dyes and pigments, and as a general aromatic amine intermediate in agrochemical and pharmaceutical synthesis.
Why is the amine on this molecule useful for diazotisation?
As a simple primary aromatic amine with a single meta chlorine, it diazotises readily and predictably under standard acidic conditions, giving a diazonium salt suited to azo coupling.
Is Meta Chloroaniline soluble in water?
It is only slightly soluble in water. It is miscible with common organic solvents such as acetone, ether and ethanol, which is why it is normally handled and reacted in an organic or mixed solvent system.
What purity do you supply?
Standard technical grade is supplied at a minimum assay of 98%, with moisture and colour held within tight limits. Higher assay grades can be manufactured to order.
What packaging is available for a liquid intermediate like this?
25 kg and 200 kg lined steel or HDPE drums, with bulk supply available in IBC totes for larger volumes.
How should it be stored, and for how long?
In sealed original containers below 30°C, under inert gas where practical and protected from light, away from strong oxidising agents. Shelf life is 24 months from manufacture when storage conditions are maintained.
Is it hazardous to handle?
It is classified as toxic by inhalation, in contact with skin and if swallowed, with aquatic toxicity, and must be handled strictly according to its Safety Data Sheet, with closed handling, dedicated PPE and adequate ventilation.
Do you provide a Certificate of Analysis?
Yes. Each batch ships with a Certificate of Analysis and Safety Data Sheet covering assay, moisture, appearance and boiling range.
