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Secondary Toluidine · CAS 102-27-2

N-Ethyl-m-Toluidine

C9H13N Molar mass 135.21 g/mol

N-Ethyl-m-Toluidine is the secondary-amine relative of N,N-Diethyl-m-Toluidine -- carrying one N-H and one N-ethyl group rather than two N-ethyl groups -- supplied as a dye and rubber-chemical intermediate.

Identification Sheet REP.
IUPAC nameN-Ethyl-3-methylaniline
CAS number102-27-2
EC / EINECS number203-013-8
Molecular formulaC₉H₁₃N
Molar mass135.21 g/mol
AppearanceColourless to pale-yellow liquid
Common synonymsN-Ethyl-3-methylaniline
Melting Point< 0 °Cliquid at ambient
Boiling Pointapprox. 237 °Cat 1 atm
Densityapprox. 0.95 g/cm³at 20 °C
Flash Pointapprox. 95 °Cclosed cup, source estimate
Purity Offered98% / 99%technical grade
01 / PRODUCT DOSSIER

What N-Ethyl-m-Toluidine 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-Ethyl-m-Toluidine retains one N-H on the amino nitrogen, which makes it more reactive toward further N-alkylation or acylation than its fully N,N-dialkylated relatives, while keeping the same electron-rich, methyl-activated aromatic ring.

It is documented as a dye intermediate -- consistent with the broader m-toluidine family's established role in azo-dye synthesis -- and as a building block in rubber-chemical and fine-chemical synthesis, where the free N-H allows further functionalisation that the fully dialkylated relatives in our range cannot undergo. We did not find a single specific named end-product documented for this exact compound and report it at the level of general intermediate use that the sources support.

Where it fits in the synthesis chain

We supply N-Ethyl-m-Toluidine itself as a dye and fine-chemical intermediate. We do not manufacture or supply any finished dye or rubber-chemical product made using it.

Grades we supply

98% and 99% grades are both seen across the trade.

02 / MANUFACTURING ROUTE

How N-Ethyl-m-Toluidine 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-Ethyl-m-Toluidine is made by mono-N-ethylation of m-toluidine with ethanol or ethyl halide under controlled, sub-stoichiometric conditions designed to favour the mono-alkylated product over the N,N-diethyl relative.

Reaction conditions and ethylating-agent stoichiometry are tuned specifically to limit over-alkylation, since the commercially required product here is the mono-substituted secondary amine, not the tertiary amine made elsewhere in our range.

The crude product is purified by distillation to separate it from unreacted m-toluidine and the over-alkylated N,N-diethyl by-product, then tested for purity and colour before release.

A mono- vs. di-alkylation distinction worth stating clearly

This compound and N,N-Diethyl-m-Toluidine elsewhere in our range are easy to conflate, since both start from the same m-toluidine and both carry ethyl substituents. The difference is deliberate and process-controlled: this product retains one N-H, made by limiting ethylation to a single substitution, while the other product is fully N,N-diethylated. We keep that distinction explicit on both pages.

03 / APPLICATIONS

Industries and processes that use it

N-Ethyl-m-Toluidine is consumed almost entirely as a synthesis intermediate. The four fields below account for most of the demand we see through our export desk.

Field 01

Dye Intermediate

Used as an intermediate in azo-dye synthesis, consistent with the broader m-toluidine family's established role in dye chemistry.

Field 02

Rubber & Fine-Chemical Intermediate

Used as a building block in rubber-chemical and fine-chemical synthesis, where the free N-H allows further N-functionalisation.

04 / REACTION CHEMISTRY

How the molecule is typically carried forward

N-Ethyl-m-Toluidine offers both the electron-rich aromatic ring common to this family and a free N-H available for further N-alkylation or N-acylation, a reactive handle its fully dialkylated relatives lack.

Further N-alkylation or N-acylation

The remaining N-H can be alkylated or acylated to build more complex intermediates, a reactive handle not available on the fully N,N-disubstituted relatives in our range.

Electrophilic substitution (dye chemistry)

The electron-rich ring undergoes electrophilic substitution reactions relevant to azo-dye intermediate synthesis.

05 / FAMILY COMPARISON

N-Ethyl-m-Toluidine against its near relatives

N-Ethyl-m-Toluidine and N,N-Diethyl-m-Toluidine are the two m-toluidine-derived amines in this part of our range, differing in degree of N-alkylation.

ProductCAS NumberTypically Used InNotes
N-Ethyl-m-Toluidine102-27-2Dye and rubber-chemical intermediateThe product on this page.
N,N-Diethyl-m-Toluidine91-67-8Dye and fine-chemical intermediateAlso 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.

06 / HAZARD & HANDLING

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.

H302

Harmful if swallowed.

H312

Harmful in contact with skin.

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H332

Harmful if inhaled.

Signal word

Warning

No harmonised EU CLP Annex VI entry was located for this specific compound. The classification above reflects general irritant/harmful self-classification consistent with its character as a substituted aniline. IARC has not evaluated this substance.

07 / STORAGE & SHELF LIFE

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.

Shelf Life24 months, unopened
Storage Temp15–30 °C
ContainerDrums, tightly sealed

Store in a cool, well-ventilated area away from strong oxidisers and acids, consistent with its character as a secondary aromatic amine. Keep containers tightly sealed.

08 / PACKING & EXPORT

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.

Standard Packing220 kg drums
Bulk PackingIBC / ISO tank
Min. OrderFrom 1 drum
Lead Time2 – 4 weeks
Export TermsFOB · CFR · CIF
09 / QUALITY & DOCUMENTATION

What travels with every batch

Specification is agreed before the purchase order, not discovered on arrival. Every shipment of N-Ethyl-m-Toluidine leaves with a documented, checkable paper trail.

Doc 01

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.

Doc 02

Safety Data Sheet

GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.

Doc 03

Technical Data Sheet

Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.

Doc 04

Certificate of Origin

Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.

Doc 05

Dangerous Goods Declaration

UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.

Doc 06

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.

10 / FAQ

Frequently asked questions

What buyers most often ask our sales desk about this grade.

01What is N-Ethyl-m-Toluidine used for?+
N-Ethyl-m-Toluidine is used as a dye intermediate in azo-dye synthesis and as a building block in rubber-chemical and fine-chemical synthesis.
02What is the CAS number of N-Ethyl-m-Toluidine?+
Its CAS Registry Number is 102-27-2, with EC number 203-013-8, molecular formula C₉H₁₃N and a molar mass of 135.21 g/mol.
03What purity grades does Chelora Chemicals supply?+
We supply technical grade and high-purity grade — the exact figures are shown in the specification rail at the top of this page. Each batch ships with a certificate of analysis stating assay, isomer purity and moisture against the agreed specification.
04Is N-Ethyl-m-Toluidine hazardous?+
Yes. It carries the GHS signal word Warning with the hazard statements listed in the hazard section of this page. It should be handled with appropriate PPE and in line with the safety data sheet supplied with each shipment.
05Is this the same as N,N-Diethyl-m-Toluidine?+
Related, not the same -- this compound retains one N-H (a secondary amine); N,N-Diethyl-m-Toluidine elsewhere in our range is fully N,N-diethylated (a tertiary amine). We control for the distinction during manufacture and confirm it by GC.
06Is a specific dye or rubber product named for this compound?+
We did not find one specific, named commercial end-product documented in the sources we checked. We describe its use at the general dye/fine-chemical-intermediate level the evidence supports, rather than attaching it to an unconfirmed specific product.
07What packing options are available?+
Standard packing is 220 kg drums, with ibc / iso tank available for bulk orders. Trial quantities from a single drum can usually be arranged before you commit to larger volumes.
08How long does delivery take?+
Typical lead time is two to four weeks plus transit, depending on whether the grade is ex-stock or made to order and your destination port. A firm date is confirmed in the written quotation.
09Can I get a sample before placing a bulk order?+
Yes. Pre-shipment samples and a batch certificate of analysis can be arranged so your QC team can verify the specification before committing to volume.
10How is N-Ethyl-m-Toluidine manufactured?+
m-Toluidine Mono-N-ethylation of m-toluidine with ethanol or ethyl halide under controlled, sub-stoichiometric conditions is the usual industrial route, followed by washing and distillation or recrystallisation before packing.
11What is the shelf life, and how should it be stored?+
Typical shelf life is around 24 months in original, unopened packaging stored as described in the storage section of this page. If a batch is held beyond its shelf life, we recommend re-checking assay and moisture before use.
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