N,N-Diethylaniline
N,N-Diethylaniline is the ethylated relative of N,N-Dimethylaniline — a well-documented triarylmethane dye intermediate, which is the use we can confirm, rather than the broader pharma and rubber-chemical roles sometimes claimed for it that we could not independently verify.
What N,N-Diethylaniline is, and why buyers source it
A working overview of the compound's chemistry, its place in the aniline-derivative family, and the grades Chelora Chemicals keeps in regular supply.
N,N-Diethylaniline carries two ethyl groups on aniline's amino nitrogen rather than the two methyl groups of its simpler relative elsewhere in this part of our range. We want to be direct about something: in researching this page, we specifically checked for a documented local-anesthetic-chain use and a rubber-chemical-intermediate use sometimes associated with this compound in general trade descriptions, and we could not independently confirm either in the primary sources we reviewed. Rather than publish unverified claims, we omit them and describe only what the evidence actually supports.
What is well documented is its role as a dye intermediate in triarylmethane dye chemistry — specifically named sources confirm its use in the synthesis of brilliant green and ethyl violet (and related Patent Blue-type dyes), a direct parallel to N,N-Dimethylaniline's role in malachite green and crystal violet. Separately, its borane complex (N,N-diethylaniline borane, DEANB) is a known, if specialty, reducing agent used in organic and pharmaceutical synthesis laboratories — a real but smaller-scale, specialty-reagent use rather than a bulk industrial application.
Where it fits in the synthesis chain
We supply N,N-Diethylaniline itself. We do not manufacture or supply the finished dyes made from it, nor the borane complex reagent.
Grades we supply
99%+ is the standard commercial grade.
How N,N-Diethylaniline is made
An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.
N,N-Diethylaniline is made, by direct analogy to N,N-Dimethylaniline's manufacture, by N-alkylation of aniline with ethanol (or diethyl sulfate) under acid catalysis and elevated temperature and pressure.
We want to be honest that we did not find this exact route explicitly documented in a primary source during this research pass — it is the chemically standard, expected analogue to the well-documented methylation route used for N,N-Dimethylaniline, and we present it as the expected route on that basis rather than as independently confirmed.
The crude product is purified by distillation to separate it from unreacted aniline and partially ethylated intermediates, then tested for purity and colour before release.
Being honest about which uses we could and couldn't confirm
General trade literature sometimes lists this compound against a local-anesthetic synthesis chain or as a rubber-chemical intermediate. We looked specifically for primary documentation of either use and did not find it. We would rather describe this compound by its confirmed dye-intermediate and specialty-reagent uses than repeat a broader set of claims we couldn't independently stand behind.
Industries and processes that use it
N,N-Diethylaniline is consumed almost entirely as a synthesis intermediate. The four fields below account for most of the demand we see through our export desk.
Triarylmethane Dye Intermediate
A documented intermediate in the synthesis of brilliant green, ethyl violet, and related Patent Blue-type triarylmethane dyes.
Specialty Reducing-Agent Precursor
Its borane complex (N,N-diethylaniline borane) is a known specialty reducing agent used in organic and pharmaceutical synthesis laboratories — a smaller-scale, specialty use rather than a bulk industrial one.
How the molecule is typically carried forward
N,N-Diethylaniline's reaction chemistry mirrors its simpler methyl relative: an electron-rich ring for electrophilic substitution in dye synthesis, and a basic nitrogen that can form specialty complexes such as its borane adduct.
Electrophilic substitution (dye chemistry)
The electron-rich ring undergoes condensation-type electrophilic substitution reactions that build triarylmethane dye structures such as brilliant green and ethyl violet.
Borane complex formation
Reaction with a borane source gives N,N-diethylaniline borane (DEANB), a specialty reducing agent used in organic and pharmaceutical synthesis.
Base-mediated acid scavenging
Like other tertiary anilines, this compound's basic nitrogen can absorb acid by-products in various synthesis reactions, a straightforward consequence of its basicity.
N,N-Diethylaniline against its near relatives
N,N-Diethylaniline, N,N-Dimethylaniline and N,N,4-Trimethylaniline are the three tertiary anilines in this part of our range.
| Product | CAS Number | Typically Used In | Notes |
|---|---|---|---|
| N,N-Diethylaniline | 91-66-7 | Triarylmethane dye intermediate (brilliant green, ethyl violet) | The product on this page. |
| N,N-Dimethylaniline | 121-69-7 | Triarylmethane dye intermediate; polyester/acrylic resin accelerator | Also supplied — see its product page. EU Carc. 2 (H351); IARC Group 3. |
| N,N,4-Trimethylaniline | 99-97-8 | Acrylic/dental resin accelerator; dye and photographic chemical intermediate | Also supplied — see its product page. |
Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide rather than a specification sheet.
Safety classification at a glance
Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.
Combustible liquid.
Toxic if swallowed.
Toxic in contact with skin.
Toxic if inhaled.
May cause damage to organs (blood) through prolonged or repeated exposure.
Toxic to aquatic life with long lasting effects.
Danger
No harmonised EU CLP Annex VI entry was located for this substance. A commercial SDS we checked lists: Signal word Danger; H227 (combustible), H301/H311/H331 (toxic by all three exposure routes, Acute Tox. 3), H373 (STOT RE 2, blood), and H411 (aquatic chronic 2). Japan's NITE self-classification gives a milder acute-toxicity set (H302/H332, Category 4) with the organ-damage statement split slightly differently across H371/H373 — a genuine discrepancy between sources that we flag rather than resolve silently; the stricter, more commercial-SDS-aligned set is shown above. No aspiration-hazard statement (H304) was found documented for this compound in any source checked. IARC has not evaluated this substance.
Keeping it on spec between delivery and use
General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.
Store in a cool, well-ventilated area away from ignition sources and strong oxidisers, consistent with a combustible liquid with Acute Tox. 3 classification across all exposure routes. Full PPE is recommended for all handling.
How it ships from Indonesia
Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.
What travels with every batch
Specification is agreed before the purchase order, not discovered on arrival. Every shipment of N,N-Diethylaniline leaves with a documented, checkable paper trail.
Certificate of Analysis
Batch-wise assay (by GC), isomer purity, melting point range and moisture, issued against the agreed specification so your QC team can check it, not just file it.
Safety Data Sheet
GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.
Technical Data Sheet
Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.
Certificate of Origin
Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.
Dangerous Goods Declaration
UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.
Third-Party Inspection
Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.
Frequently asked questions
What buyers most often ask our sales desk about this grade.
01What is N,N-Diethylaniline used for?+
02What is the CAS number of N,N-Diethylaniline?+
03What purity grades does Chelora Chemicals supply?+
04Is N,N-Diethylaniline hazardous?+
05Is this used to make local anesthetics or rubber chemicals?+
06Is this the same as diethanolamine (also sometimes abbreviated DEA)?+
07Does this carry an aspiration hazard like some similar compounds?+
08What packing options are available?+
09How long does delivery take?+
10Can I get a sample before placing a bulk order?+
11How is N,N-Diethylaniline manufactured?+
12What is the shelf life, and how should it be stored?+
Need N,N-Diethylaniline on spec, on time?
Send us your required purity, quantity, packing preference and destination port. Our desk quotes most enquiries within one working day.