Fast Bordeaux GP Base
Fast Bordeaux GP Base is a textbook azoic diazo component — a stable amine that a dyehouse diazotizes on site, right before applying it, then couples directly onto cotton fibre already impregnated with a naphthol to build the finished bordeaux or maroon colour in place.
Chelora Chemicals supplies Fast Bordeaux GP Base to textile dyehouses and azoic-dye formulators worldwide, in standard packing, with a batch COA and GHS safety data sheet on every consignment.
Product identity
- CAS Number
- 96-96-8
- IUPAC name
- 4-Methoxy-2-nitroaniline
- Molecular formula
- C₇H₈N₂O₃
- Molecular weight
- 168.15 g/mol
- Colour Index name
- Azoic Diazo Component 1
- Common names
- Fast Bordeaux GP, Fast Bordeaux GP Base
- SMILES
- COc1ccc(N)c(c1)[N+](=O)[O-]
- HS Code
- 2922 29*
* Confirm the exact HS heading with your customs broker — fast color bases of this type are commonly classified under the sulfonamide/amino-compound headings of chapter 29 in several tariff schedules.
What Fast Bordeaux GP Base is used for
Fast Bordeaux GP Base is an orange to yellow crystalline solid catalogued in the Colour Index as Azoic Diazo Component 1 — a nitro-substituted anisidine whose amine group is stable enough to store and ship, but reactive enough to diazotize cleanly at the dyehouse immediately before use.
Its sole commercial purpose is azoic (ice-color) dyeing of cotton and other cellulosic fibres. The fabric is first impregnated with a naphthol AS coupling component; Fast Bordeaux GP Base is then diazotized on site in cold, acidified solution and applied, where it couples instantly with the naphthol already in the fibre to generate an insoluble azo pigment in place — giving the characteristic deep bordeaux-to-maroon shade this base is named for.
Where it sits in the azoic diazo-component family
- Fast Bordeaux GP Base (this product) C.I. Azoic Diazo Component 1; couples to give bordeaux/maroon shades.
- Fast Red Base B / Fast Scarlet Base R sulfonamide-type diazo components coupling to red and scarlet shades respectively — a different chemistry family, same dyeing method.
- Fast Blue Base RR / Fast Garnet GBC Base further Colour Index diazo components covering blue and garnet shades in the same azoic dyeing system.
- Nitrosylsulfuric acid an alternative to in-situ sodium nitrite for diazotizing this and other azoic bases on a larger batch scale. See that page.
Specify the base by its Colour Index name and CAS number together on your purchase order, since trade names for this base vary widely by region and manufacturer. See the full azoic dye and diazo component range.
Appearance and handling character
The material ships as an orange to yellow crystalline solid, with limited water solubility that is improved by the acidification step used in diazotization. As a nitroaniline, it carries the toxicity and skin-sensitization profile typical of this chemical class, and should be handled with the same care as other dye and pigment intermediates in our range. The safety section below should be read before any handling is planned.
| Parameter | Typical value |
|---|---|
| Appearance | Orange to yellow crystalline solid |
| Assay | 98.0% min |
| Melting range | Reported per batch |
| Moisture | 0.5% max |
| Isomer / residual impurities | Reported per batch |
Important: the figures above are indicative of commercial-grade material and are offered for planning only. The batch certificate of analysis is the governing document. Assay and isomer purity are the figures that most affect diazotization behaviour and final shade — tell us your target and we will quote against it.
| Property | Value |
|---|---|
| Physical state | Crystalline solid at ambient |
| Molecular weight | 168.15 g/mol |
| Water solubility | Low in neutral water; improved on acidification |
| Diazotization behaviour | Standard cold acidified diazotization |
| Colour Index classification | Azoic Diazo Component 1 |
| Coupling partner type | Naphthol AS derivatives |
Physical constants compiled from public reference data for CAS 96-96-8 and rounded for readability. Treat them as orientation, not as a specification.
Where our customers put this diazo base to work
This base exists for one dyeing method. The applications below reflect the different fibre forms and end products that method serves.
Cotton piece-dyeing (azoic / ice colors)
Diazotized on site and applied to naphthol-impregnated cotton fabric to generate bordeaux and maroon shades directly in the fibre.
- Classic azoic dyeing method
- Cotton and cellulosic fibre
- Technical desk support for your dyebath
Yarn and hank dyeing
The same diazotization and coupling chemistry applied to yarn or hank-dyed cotton for knitwear and woven-fabric production.
- Yarn-dyeing azoic method
- Batch-to-batch shade consistency
- See our azoic dye range
Textile printing pastes
Azoic printing systems use the same diazo-and-couple chemistry in paste form for pattern printing on cotton fabric.
- Print-paste formulation support
- Custom particle size on request
- Technical desk review of your formulation
Dye & pigment intermediate synthesis
Beyond direct azoic dyeing, this nitroaniline also serves as a general synthesis intermediate wherever its specific substitution pattern is the target.
- Fine chemical intermediate use
- End-use declaration required
- Custom synthesis quantities available
Shade-matching & formulation trials
Dyehouses qualify new lots against standard shade cards before committing to production-scale dyeing.
- Small trial quantities available
- Full analytical documentation
- Reference-grade material on request
Contract & scheduled supply
Textile dyehouses consume azoic bases on a seasonal, order-driven schedule. We hold inventory and release it against your production calendar.
- Annual contracts with scheduled call-off
- Price held across the contract period
- Second source held in reserve
How we supply Fast Bordeaux GP Base
Chelora Chemicals is a supplier and sourcing partner, not a manufacturer. On a product where trade names vary enormously between manufacturers but the Colour Index identity does not, owning no plant means we can route your order to whichever producer's isomer purity and particle size actually gives the shade consistency your dyehouse specifies.
We place your order with whichever qualified producer best matches your assay, your specification, your price point and your delivery window.
We keep a second qualified source on this line. When a plant goes down for maintenance, your order switches source rather than stalling.
- CAS and Colour Index identity confirmed before we quote. Trade names for this base vary by region — we settle the identity against CAS 96-96-8 / C.I. Azoic Diazo Component 1 in the first reply.
- Isomer purity reported, not averaged. It is what your diazotization and coupling step actually responds to, and what decides final shade consistency.
- Batch COA shared before dispatch. You approve assay, melting range and isomer profile against your own shade-card specification while the material is still in our warehouse.
- Toxicity and skin-sensitization stated up front. As a nitroaniline, this material carries the hazard profile typical of the class — we say so at enquiry stage so your EHS team can plan.
- Pre-shipment samples for shade qualification. New account or new source, your dyehouse runs a trial dyeing before the full quantity ever moves.
- Export machinery handled in-house. Approved packing, labelling, freight booking and customs paperwork are ours to manage.
Packed the way your plant receives it
Pack format drives your landed cost and your handling effort. Tell us how the material will be charged at your end and we will quote the format that suits your operation.
Lined bags / fibre drums
Standard lined packs for this dye intermediate — the standard commercial format for dyehouse consumption.
Bulk bag (FIBC) / container
Bulk packaging for larger, continuous-consumption dyehouse and formulator accounts.
Trial / sample quantities
Small quantities dispatched so your dyehouse can run shade-matching trials before committing to production volumes.
Incoterms to suit you
Quoted on the Incoterm your purchasing team works to, with documentation filed before the booking is made.
Seasonal despatch
We hold contracted tonnage and release it against your dyehouse's seasonal production calendar.
Handle as a nitroaniline dye intermediate
Fast Bordeaux GP Base is harmful by ingestion and skin contact, a potential skin sensitizer, and may cause damage to blood (methaemoglobin formation) typical of substituted nitroanilines. The summary below is orientation only — the safety data sheet supplied with your consignment is the authoritative document.
Classified hazards
H302Harmful if swallowed.H312Harmful in contact with skin.H317May cause an allergic skin reaction.H319Causes serious eye irritation.H411Toxic to aquatic life with long lasting effects.
Hazard statements reflect classifications commonly published for substituted nitroanilines of this type. As with other members of the chloronitroaniline and nitroanisidine family, methaemoglobin formation is a recognised concern on significant exposure — always read the SDS issued with your specific batch. Always read the SDS issued with your specific batch.
Spill & emergency orientation
Plan your response before the pallet arrives. Sections 4, 5 and 6 of the SDS are the authoritative instructions and should be posted at the point of use.
- Contain, do not hose to drain. H411 applies — collect spilled solid mechanically, avoid raising dust, and dispose of it as regulated chemical waste.
- Avoid skin and eye contact during cleanup. Wear gloves and eye protection; wash any contaminated skin thoroughly with soap and water.
- Watch for delayed symptoms on significant exposure. As with other nitroanilines, effects such as methaemoglobinaemia may present some hours after contact — seek medical assessment if a significant exposure occurs.
- Ventilate the work area during cleanup. Minimise dust generation and inhalation during collection.
Storage
- Cool, dry, well-ventilated store. Away from direct sunlight and heat sources, in tightly closed original packing.
- Keep containers sealed and clearly labelled. On a sealed floor to prevent dust escape and cross-contamination with other dye intermediates.
- Segregate from strong oxidizing agents. Standard good practice for aromatic amine and nitro-compound storage.
- Shelf life typically 24 months or more. In sealed original packing. Re-assay before use after extended storage.
Handling & PPE
- Minimise dust generation during weighing and charging. Local exhaust ventilation or enclosed transfer for powder handling.
- Standard chemical-handling PPE. Gloves, eye protection and dust mask or respirator during weighing, dissolution and diazotization.
- Follow validated diazotization procedure. Cold, acidified conditions as specified for azoic diazo components — temperature control affects both yield and safety.
- Never discharge dyebath liquor untreated. H411 applies — treat or contain spent dyebath liquor per your site's effluent protocol.
Transport
Fast Bordeaux GP Base is typically classified and documented according to its hazard profile as an aromatic nitro-amine dye intermediate. We confirm the applicable transport classification for your specific shipment and destination, apply correct packaging and labelling, and file any required documentation before the booking is made — ask us for the current paperwork when you plan the shipment.
What travels with every consignment
A chemical shipment is only as good as the file that travels with it. Verifying what the source plant sends is precisely the work you are buying from a supplier.
Certificate of Analysis
Batch-specific assay, melting range, isomer content and moisture — checked against your purchase specification before release.
GHS Safety Data Sheet
Full 16-section SDS in GHS format covering hazards, exposure controls, handling, storage, spill response and disposal, issued in the language your destination requires.
Certificate of Origin
Chamber-attested where required, plus preferential-origin forms where a trade agreement gives your import duty relief.
Third-party inspection
SGS, Intertek or Bureau Veritas sampling and inspection arranged on request before loading, giving you independent verification of what actually ships.
Retained & pre-shipment samples
Pre-shipment samples carry the same COA as the commercial lot, so the shade your dyehouse qualifies is exactly what arrives.
Shade-card reference data
Reference dyeing data and shade comparison available on request to support your qualification trial.
Diazotize on site, couple in the fibre
Azoic dyeing builds the final pigment inside the cotton fibre itself, rather than applying a pre-formed dye — which is why the diazo component must be stable enough to ship but reactive enough to diazotize cleanly on the shop floor. The routes below are the general industrial pattern, not a process disclosure.
Impregnate the fibre with naphthol
Cotton fabric or yarn is first padded or dyed with a naphthol AS coupling component and dried.
Diazotize the base on site
Fast Bordeaux GP Base is dissolved and diazotized in cold, acidified solution immediately before application, generating the reactive diazonium salt.
Apply and couple in the fibre
The diazotized solution is applied to the naphthol-impregnated fibre, where coupling occurs instantly, generating an insoluble azo pigment trapped inside the fibre structure.
Wash and finish
The dyed fabric is washed to remove unreacted material and finished to the required specification.
Why isomer purity and particle size carry through to final shade
On a diazo component used directly in production dyeing, consistency is the entire commercial value:
- Isomer impurities shift the coupled shade. A contaminating isomer diazotizes and couples alongside the intended component, giving a visibly different final colour.
- Particle size affects dissolution rate during diazotization. Inconsistent particle size can give uneven diazotization and patchy dyeing results.
- Melting range is the quick practical purity check. Dyehouse quality control commonly uses it as a fast screen before committing a lot to production.
- Moisture affects weighing accuracy in dyehouse dosing. A consistent, dry lot dyes more predictably than a variable one.
That is why we quote against your written shade-card requirement rather than a generic "azoic base" label, and why the batch COA is shared for approval before dispatch rather than sent with the invoice.
| Material | Downstream / use |
|---|---|
| Fast Bordeaux GP Base CAS 96-96-8 — this product | Bordeaux/maroon shades on cotton |
| Fast Red Base B Sulfonamide-type diazo component | Red shades on cotton |
| Fast Scarlet Base R p-Aminoacetanilide-type component | Scarlet shades on cotton |
| Nitrosylsulfuric acid CAS 7782-78-7 | Alternative large-batch diazotizing reagent |
We supply across this intermediate family — see the full intermediate range. Send the CAS number and we will confirm the correct material before quoting.
What actually moves the price of this product
Knowing what drives the quote helps you time a purchase and read whether an offer is realistic.
Isomer-free synthesis cost
Clean nitration and reduction to the target isomer, rather than a mixture, is what buyers are actually paying for on this intermediate.
- Tighter isomer limits narrow the source list
- We will tell you when you are over-specifying
- Ask about standard vs premium-purity grades
Seasonal textile-industry demand
Azoic dyeing demand follows textile production cycles, which are themselves seasonal in many major manufacturing regions.
- Book ahead of your region's peak dyeing season
- Contracted call-off smooths seasonal exposure
- We flag seasonal booking windows in advance
Freight and packaging format
As a standard (non-bulk-DG) solid, freight cost is driven mainly by distance and consignment size rather than hazardous-cargo surcharges.
- Compare on landed cost, not ex-works
- We quote FOB, CIF, CFR or DDP as you prefer
- Bulk bag format reduces per-kg freight cost
Co-product and plant scheduling.
Azoic base producers often run several Colour Index bases on shared equipment; demand for sister shades affects your lead time.
- Ask us what the sister-shade market is doing
- Contracted call-off smooths the exposure
- We hold a second qualified source
Source availability
A plant turnaround or feedstock disruption can take capacity offline at short notice on this specialty intermediate.
- We hold a second qualified source on this line
- Qualify the alternate before you need it
- Ask us about dual-source contracts
| If your end use is… | Specify |
|---|---|
| Cotton piece / yarn dyeing (azoic) | 98% min assay, tight isomer limit, shade-matched to your card |
| Textile printing paste formulation | Particle size matched to your paste system |
| General dye intermediate synthesis | Standard commercial grade, end-use declaration |
| Laboratory / shade trial | Small pack, full COA and reference shade data |
Not sure which column you are in? Describe what you make from it and our technical desk will recommend the grade — including telling you when a cheaper specification would do the job just as well.
Support that goes beyond shipping the drum
What our technical desk will do
- Confirm identity against CAS and Colour Index name. Trade names for this base vary widely by region and manufacturer — we settle the exact identity in the first reply, before anything else.
- Confirm isomer purity against your shade card. On a colour-critical product this is the figure that decides whether a lot matches your existing production shade.
- Be straight about the hazard profile. Harmful by ingestion and skin contact, skin sensitizer, methaemoglobin-formation concern — stated at enquiry stage so your EHS team can plan.
- Review your specification before it goes into a contract. So you are not locked into a purity or particle size no plant can consistently hit.
Regulatory & compliance notes
- Azo dye and intermediate regulation varies by destination. Several jurisdictions restrict specific azo dye intermediates on toxicological grounds — we check current rules before quoting.
- Import controls vary by destination. We check destination rules before quoting, not after you have raised the PO.
- Effluent rules matter for spent dyebath liquor. H411 applies — check your discharge consent against the material before introducing it to site.
- Chemical inventory listings differ between regions. We will supply the identity data you need for that filing.
None of the above is legal advice — your own regulatory affairs team owns the final compliance position for your import and your workplace. What we commit to is accurate product identity data, an honest statement of the hazard classification and complete documentation to work from.
From enquiry to delivered pallet
Send the specification
Product name, CAS 96-96-8, your shade-card reference if applicable, quantity and destination port.
Receive a firm quote
Pricing, lead time, packing and Incoterm confirmed in writing within 24 hours — our sourcing desk is staffed around the clock.
Qualify and approve
Sample dispatched for your dyehouse's shade-matching trial. Batch COA shared for your approval before the material is released.
Ship and track
Export documents issued and the consignment tracked through transit and clearance to your dyehouse.
Others in the Chelora range
What buyers ask us about Fast Bordeaux GP Base
What is Fast Bordeaux GP Base used for?
Why does it have so many different trade names?
How is azoic dyeing different from using a pre-made dye?
What purity do you normally supply?
Is it hazardous?
What is the minimum order quantity?
How should we store it?
Do you supply to my country?
Do you manufacture this yourself?
Request pricing on Fast Bordeaux GP Base
Send your shade-card reference if you have one, required quantity, pack format and destination port. Our sourcing desk is available 24 hours a day, 7 days a week, and comes back with pricing, lead time and packing options — whether that is a single trial pack or a contracted programme for the season.