Colour chemistry, engineered
Dye & Pigment Intermediates Supplier, Globally Precision Intermediates, Consistent Colour.
Pigment Intermediates, amine intermediates, nitro and chlorinated benzenes, and the process chemicals that turn them into finished colour. One supplier for your whole colour route.
Every lot is tested in-house and ships with batch test data and an SDS. Questions on grade or spec? Call +91 9819 1111 79
- 2B Acid 88-51-7
- 2,6-Dichloro-4-Nitroaniline 99-30-9
- 2,4-Dinitrochlorobenzene 97-00-7
- Oleum 23% 8014-95-7
- 4B Acid 88-44-8
- 6-Chloro-2,4-Dinitroaniline 3531-19-9
- Meta Dinitrobenzene 99-65-0
- Oleum 65% 8014-95-7
- 2,4-Dinitroaniline 97-02-9
- Ortho Chloro Para Nitro Aniline 121-87-9
- Para Nitrophenol 100-02-7
- Chlorosulfonic Acid 7790-94-5
- 2,4,5-Trichloroaniline 636-30-6
- Ortho Nitroaniline 88-74-4
- Ortho Nitroanisole 91-23-6
- Nitrosylsulfuric Acid 7782-78-7
- 2,5-Dichloro-4-Nitroaniline 6641-64-1
- Para Chloro Ortho Nitro Aniline 89-63-4
- 2,5-Dichloronitrobenzene 89-61-2
- Dimethyl Sulfate 77-78-1
- 3,3'-Dichlorobenzidine Dihydrochloride 612-83-9
- Para Nitroaniline 100-01-6
- 3,4-Dichloronitrobenzene 99-54-7
- Diethyl Sulfate 64-67-5
- Fast Bordeaux GP Base 96-96-8
- N,N,4-Trimethylaniline 99-97-8
- Meta Nitrochlorobenzene 121-73-3
- Potassium Chloride 7447-40-7
- Ortho Tolidine Base 119-93-7
- N,N-Diethylaniline 91-66-7
- Ortho Nitrochlorobenzene 88-73-3
- Sodium Silicofluoride 16893-85-9
- Para Nitrobenzamide 619-80-7
- N,N-Diethyl-M-Toluidine 91-67-8
- Meta Nitrotoluene 99-08-1
- Para Nitrobenzoic Acid 62-23-7
- N,N-Dimethylaniline 121-69-7
- Ortho Nitrotoluene 88-72-2
- N-Ethyl-M-Toluidine 102-27-2
- Para Nitrotoluene 99-99-0
- Meta Toluidine 108-44-1
- Para Nitrotoluene Ortho Sulphonic Acid 121-03-9
- Ortho Toluidine 95-53-4
- Mono Chlorobenzene 108-90-7
- Para Toluidine 106-49-0
- Ortho Dichlorobenzene 95-50-1
- Ortho Anisidine 90-04-0
- Meta Dichlorobenzene 541-73-1
- Para Anisidine 104-94-9
- Nitrobenzene 98-95-3
- Meta Phenylenediamine 108-45-2
- Ortho Phenylenediamine 95-54-5
- Para Phenylenediamine 106-50-3
- 2,5-Dichloroaniline 95-82-9
- 3,4-Dichloroaniline 95-76-1
- Meta Chloroaniline 108-42-9
- Ortho Chloroaniline 95-51-2
- Para Chloroaniline 106-47-8
- Para Chloro Ortho Amino Phenol 95-85-2
- Tested in-house
Every lot checked against its specification before dispatch.
- Full documentation
Batch test data and Safety Data Sheets with every shipment.
- Samples first
Trial the material in your own process before you order volume.
- Technical support
Talk to chemists who work in diazotisation, coupling and sulfonation.
- products across the colour route
- 59
- product families, one supplier
- 4
- of lots tested in-house before dispatch
- 100%
- enquiry line, +91 98191 11179
- 24hrs
How the range splits Tap a family to browse it
CIPart of Chelora Industries, supplying pan-India through the group's distribution network.
Built for people who can't afford a shade that drifts
We supply the pigment intermediates, amine intermediates and process chemicals behind dyes, pigments, inks and coatings, to the dye houses, pigment makers, formulators and plastics processors who need the same material lot after lot, delivered on their schedule.
Colour is unforgiving. A small shift in the purity or moisture of an intermediate can move a shade, slow a coupling reaction or change how a pigment disperses. That is why every product we supply is tested in-house before dispatch, and why each shipment travels with its documentation.
What working with us looks like
- One supplierIntermediates and the process chemicals that go with them.
- Same spec, every batchConsistent specifications, so the shade you approved holds.
- Packed for the hazardPacking matched to each product's form and hazard profile.
- Supply on your scheduleRepeat deliveries planned around your production.
- Straight answersClear answers on grade, availability and lead time.
- First enquiry to repeat orderOne team supports you from sample to scheduled supply.
Our product families
Organised the way colour is made: pigment intermediates, amine intermediates, the benzenes and nitro compounds they start from, and the process chemicals that drive each step.
Pigment intermediates
Diazo components, bases and aromatic acids that become reds, yellows, oranges and bordeaux shades in inks, paints and plastics.
See all pigment intermediatesAmine intermediates
Anilines, toluidines, anisidines and phenylenediamines — the diazo and coupling components behind most azo dyes.
See all amine intermediatesBenzenes & nitro compounds
Chlorinated and nitrated benzenes and toluenes — the starting materials for amines, brighteners and fine chemicals.
See all benzenes & nitro compoundsProcess chemicals
Sulfonating, diazotising and alkylating agents, plus inorganic salts, for the reaction steps between intermediate and colour.
See all process chemicalsFrom benzene ring to finished colour
Almost every product we supply sits somewhere on this route. Knowing where an intermediate fits helps you judge which specification matters most for your process.
Aromatic starting material
Benzene derivatives such as Nitrobenzene and Mono Chlorobenzene carry the ring that will eventually hold the colour.
Substitution
Nitration, chlorination and sulfonation add the groups that set shade and solubility — Oleum and Chlorosulfonic Acid do the sulfonating.
Reduction to an amine
Nitro groups are reduced to amines — nitrotoluenes become toluidines, nitrochlorobenzenes become chloroanilines.
Diazotisation
The amine becomes a diazonium salt. Weakly basic amines are diazotised in Nitrosylsulfuric Acid.
Coupling & finishing
The diazonium salt couples with a partner to form an azo dye or pigment, then is isolated and finished.
Terms buyers and chemists use
6 terms- Diazo component
- The aromatic amine that is diazotised; it largely sets the shade family.
- Coupling component
- The electron-rich partner the diazonium salt reacts with.
- Diazotisation
- Reacting a primary aromatic amine with a nitrous-acid source, usually cold, to form a diazonium salt.
- Sulfonation
- Adding sulfonic acid groups to the ring, which makes many dyes water-soluble.
- Alkylation
- Adding methyl or ethyl groups, including the quaternisation step in cationic dye making.
- Batch consistency
- Keeping purity, moisture and impurity profile inside a tight window from lot to lot.
Industries we supply
The intermediates we supply end up in fabric, packaging inks, wall paints and moulded parts. Here's where each part of the range does its work.
Textile dyeing & printing
Disperse, acid and reactive dyes all start with amine and nitro intermediates.
Relevant: Ortho Toluidine, Para Nitroaniline
Printing inks
Red and yellow ink pigments depend on diazo components with tight purity.
Paints & coatings
Organic pigments need consistent shade and strength, run after run.
Relevant: Fast Bordeaux GP Base
Plastics & masterbatch
Pigments for plastics have to disperse cleanly and hold shade through processing.
Relevant: 2B Acid, Ortho Tolidine Base
Dye & pigment manufacturers
Intermediates and diazotising/sulfonating agents for colour makers running their own synthesis.
Relevant: Nitrosylsulfuric Acid
Specialty chemical synthesis
Nitro compounds and alkylating agents for optical brighteners and fine-chemical routes.
Relevant: Dimethyl Sulfate
Search the range
Search by name or CAS number, or filter by family. Short forms work too — try "toluidine", "nitro" or "88-51-7".
10 of 59 products
- 2B AcidPigment intermediate
- 4B AcidPigment intermediate
- 2,4-DinitroanilinePigment intermediate
- Fast Bordeaux GP BasePigment intermediate
- Ortho Tolidine BasePigment intermediate
- 3,3'-Dichlorobenzidine DihydrochloridePigment intermediate
- Ortho ToluidineAmine intermediate
- Para ToluidineAmine intermediate
- Para AnisidineAmine intermediate
- Ortho AnisidineAmine intermediate
- N,N-DiethylanilineAmine intermediate
- N,N-DimethylanilineAmine intermediate
- N-Ethyl-M-ToluidineAmine intermediate
- Meta PhenylenediamineAmine intermediate
- Para NitroanilineAmine intermediate
- NitrobenzeneBenzene / nitro compound
- Mono ChlorobenzeneBenzene / nitro compound
- Ortho DichlorobenzeneBenzene / nitro compound
- Ortho NitrotolueneBenzene / nitro compound
- Para NitrophenolBenzene / nitro compound
- Para Nitrotoluene Ortho Sulphonic AcidBenzene / nitro compound
- Oleum 65%Process chemical
- Oleum 23%Process chemical
- Chlorosulfonic AcidProcess chemical
- Nitrosylsulfuric AcidProcess chemical
- Dimethyl SulfateProcess chemical
- Diethyl SulfateProcess chemical
- Potassium ChlorideProcess chemical
- 2,4,5-TrichloroanilinePigment intermediate
- 2,5-Dichloro-4-NitroanilinePigment intermediate
- Para NitrobenzamidePigment intermediate
- Para Nitrobenzoic AcidPigment intermediate
- 2,6-Dichloro-4-NitroanilineAmine intermediate
- 6-Chloro-2,4-DinitroanilineAmine intermediate
- Ortho Chloro Para Nitro AnilineAmine intermediate
- Ortho NitroanilineAmine intermediate
- Para Chloro Ortho Nitro AnilineAmine intermediate
- N,N,4-TrimethylanilineAmine intermediate
- N,N-Diethyl-M-ToluidineAmine intermediate
- Meta ToluidineAmine intermediate
- Ortho PhenylenediamineAmine intermediate
- Para PhenylenediamineAmine intermediate
- 2,5-DichloroanilineAmine intermediate
- 3,4-DichloroanilineAmine intermediate
- Meta ChloroanilineAmine intermediate
- Ortho ChloroanilineAmine intermediate
- Para ChloroanilineAmine intermediate
- Para Chloro Ortho Amino PhenolAmine intermediate
- 2,4-DinitrochlorobenzeneBenzene / nitro compound
- Meta DinitrobenzeneBenzene / nitro compound
- Ortho NitroanisoleBenzene / nitro compound
- 2,5-DichloronitrobenzeneBenzene / nitro compound
- 3,4-DichloronitrobenzeneBenzene / nitro compound
- Meta NitrochlorobenzeneBenzene / nitro compound
- Ortho NitrochlorobenzeneBenzene / nitro compound
- Meta NitrotolueneBenzene / nitro compound
- Para NitrotolueneBenzene / nitro compound
- Meta DichlorobenzeneBenzene / nitro compound
- Sodium SilicofluorideProcess chemical
Check the spelling or try part of the name. Looking for something not listed? Ask our technical team or .
Tested in-house, documented in full
Batch-consistent colour does not happen by accident. Every lot of every product is tested in-house against its specification before dispatch, and the results travel with the shipment — fewer surprises at goods-in, faster release into production.
- Each lot tested against the product specification before dispatch
- Batch test data supplied with every shipment
- Safety Data Sheets for every product
- Samples with test data, so you compare like with like
- A technical team to talk through results, grades and applications
Checks on a typical batch record
The exact parameters follow each product's specification — these are the checks buyers ask about most.
- Appearance
- Physical form and colour against the reference.
- Assay / purity
- Content of the main component — drives yield and shade.
- Moisture
- Affects weighing accuracy and how an amine diazotises.
- Melting / setting point
- A quick indicator of purity for solids.
- Insoluble matter
- Residue that can cause specks or filtration issues.
- Free SO₃ content
- The strength figure for oleum grades.
How to order
Start with a sample, move to scheduled supply. Four steps, start to finish.
- Step 1 of 4
Choose a product
Browse the product directory or send the chemical name, CAS number or specification you work to.
- Step 2 of 4
Share your requirement
Tell us the grade, quantity, packing and delivery location.
- Step 3 of 4
Evaluate a sample
We send a sample with its test data to trial in your own process.
- Step 4 of 4
Confirm supply
Once the sample clears trial, we schedule supply to the same spec, lot after lot.
Packing, storage & safe handling
Many intermediates and process chemicals are reactive, toxic or sensitive to air and moisture. Each is packed to suit what it is, with what your team needs to store and use it safely.
How products are supplied
- Powders and crystals are packed to keep moisture out
- Liquid amines are kept in closed containers that limit air contact
- Fuming and corrosive acids go in acid-resistant containers
- Every pack is labelled with product, lot and hazard information
Storing & handling on site
- Store cool, dry and well-ventilated, away from direct sunlight
- Keep containers tightly closed; many amines darken on exposure
- Keep oleum and chlorosulfonic/nitrosylsulfuric acids away from water
- Handle Dimethyl/Diethyl Sulfate in closed systems only
Who should handle what
- Only trained staff, with the protective equipment the SDS specifies
- Avoid skin contact with aromatic amines and nitro compounds
- Keep acids, oxidisers and amines segregated in storage
Read the Safety Data Sheet before first use. It sets out protective equipment, storage conditions, first-aid measures and spill response. If anything is unclear, ask our technical team.
Frequently asked questions
Answers to what buyers, chemists and plant teams ask us most. For anything else, get in touch.
What does Chelora Dyes supply?
Pigment intermediates, amine intermediates, nitro/chlorinated benzenes and the process chemicals used to turn them into colour — one supplier across the full route.
Is Chelora Dyes a manufacturer or a supplier?
A supplier. We source, test every lot in-house and ship with documentation, so you deal with one point of contact for your whole colour route.
What's the difference between a dye and a pigment intermediate?
Dye intermediates become dyes, which dissolve into the fibre. Pigment intermediates become pigments, which stay as insoluble particles dispersed in ink, paint or plastic. Many amines can serve either route.
Can I get a sample before a bulk order?
Yes — request one with the product name, grade and how you'll evaluate it. Samples ship with test data so you can compare directly against what you use today.
What documentation comes with each shipment?
A batch test report and a Safety Data Sheet. Technical data and spec sheets are available on request.
How do you keep batch-to-batch quality consistent?
Every lot is tested in-house against spec before dispatch — appearance, assay, moisture, melting point and insoluble matter, depending on the product.
Can you match a specific grade or specification?
Share the spec you work to and our technical team will confirm whether it can be met, and suggest a sample for trial.
How do I choose between Oleum 23% and 65%?
The percentage is free SO₃ content. 65% is the stronger sulfonating agent; 23% fumes less and suits milder reactions. Your chemistry decides which fits.
How are hazardous chemicals packed and handled?
In containers suited to their hazard profile, labelled and supplied with an SDS. On site, store closed in a dry, ventilated area and let only trained staff handle them.
How do I ask for a quote?
Get in touch with the product name, grade, quantity, preferred packing and delivery location — the more detail, the faster the quote.
Tell us the product, grade and quantity you need
Our technical team will come back with a specification and a sample plan — whether it's Ortho Toluidine for a dye route, 4B Acid for an ink pigment, or Oleum for sulfonation.