Are TMEDA, TEMED and Tetramethylethylenediamine the same substance?

Yes. These names commonly identify CAS 110-18-9, formula C₆H₁₆N₂. The full name and CAS number should appear on purchase documents because similar abbreviations are used for other amines and formulated catalyst systems. Confirm that the offered product is the free diamine rather than a salt, solution or metal complex.

Which batch specifications should be set for TMEDA?

Agree GC assay, water, color, density or refractive index, and limits for specified amine-related impurities. Low-moisture synthesis may require a tighter water limit and controlled sampling than general industrial use. Compare the batch COA and test methods with the process requirement rather than assuming every nominal 99% TMEDA grade is equivalent.

How should industrial TMEDA be packed and transferred?

Specify net weight, compatible drum or IBC materials, closure, headspace condition and moisture limit at delivery. Confirm seals, loading date, previous cargo where applicable, current SDS, grounding and bonding, ventilation and a closed-transfer connection. Protect the material from ignition sources and prolonged exposure to humid air during storage and sampling.

Tetramethylethylenediamine (TMEDA) CAS 110-18-9

Tetramethylethylenediamine (TMEDA), CAS 110-18-9, is also known as 1,2-bis(dimethylamino)ethane. It is a tertiary diamine used in coordination chemistry and base-mediated synthesis. For procurement review, confirm the intended process role, assay method, impurity limits, and offered form, packaging, and applicable safety documentation.

CAS: 110-18-9
Synonyms: Tetramethylethylenediamine; TMEDA; 1,2-Bis(dimethylamino)ethane
Einecs: 203-744-6
Molecular Formula: C₆H₁₆N₂
Grade: Confirm current product specification
Package: Confirm packaging for the offered form

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Product Description

Tetramethylethylenediamine (TMEDA) is a tertiary diamine used in coordination chemistry and base-mediated synthesis. TMEDA is the established abbreviation for tetramethylethylenediamine, CAS 110-18-9.

Product: Tetramethylethylenediamine (TMEDA); CAS number: 110-18-9.

For procurement review, confirm the intended process role, assay method, impurity limits, and offered form, packaging, and applicable safety documentation.

FAQ - Technical & Supply Chain

Q:
Are TMEDA, TEMED and Tetramethylethylenediamine the same substance?

A: Yes. These names commonly identify CAS 110-18-9, formula C₆H₁₆N₂. The full name and CAS number should appear on purchase documents because similar abbreviations are used for other amines and formulated catalyst systems. Confirm that the offered product is the free diamine rather than a salt, solution or metal complex.
Q:
Which batch specifications should be set for TMEDA?

A: Agree GC assay, water, color, density or refractive index, and limits for specified amine-related impurities. Low-moisture synthesis may require a tighter water limit and controlled sampling than general industrial use. Compare the batch COA and test methods with the process requirement rather than assuming every nominal 99% TMEDA grade is equivalent.
Q:
How should industrial TMEDA be packed and transferred?

A: Specify net weight, compatible drum or IBC materials, closure, headspace condition and moisture limit at delivery. Confirm seals, loading date, previous cargo where applicable, current SDS, grounding and bonding, ventilation and a closed-transfer connection. Protect the material from ignition sources and prolonged exposure to humid air during storage and sampling.

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