INTRODUCTION

The product, acronymed ETD, is an organic compound with a fused bicyclic ring system and an ethylidene group. The structure renders the chemical special properties leading to its applications in diverse fields.

Manufacture

ETD is manufactured by Diels Alder reaction between dicyclopentadiene and a suitable diene.

SynonymETD
Ethylidenetetracyclododecene
1,7,13-Tetradecatriyne
CAS no.38233-76-0
EINECS no.700-518-3
Molecular formulaC14H18
Molecular weight186.29
Structure

Applications

APIs
As a valuable intermediate in development of novel drug candidates
Agrochemicals
As an ingredient in advanced crop protection formulations
Others
As resin in 3D printing inks
Material science
Building block for novel polymers and ion exchange resins
Proteomic research
TestUnitSpecifications
AppearanceLight yellow liquid
Purity%Min 95

STORAGE

Stored at ambient temperature

PACKING

Suitable

REACH Status

Not registered

ExSyn offers ETD on commercial scales  and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please contact us.

More Prodcuts
In focus: Ciclopirox Olamine Ph.Eur.
Products in focus · 24/03/2026

Ciclopirox Olamine (CPO)  is the N-oxide of a 2 -hydroxy pyridine derivative that carries antifungal, antibacterial, and anti-inflammatory properties. It is composed of 6-cyclohexyl-1-hydroxy-4-methyl-2(1H)-pyridone combined with 2 aminoethanol (olamine) in a 1:1 ratio.

READ MORE
In focus: N,N-Dimethylglycine sodium salt (DMG Na)
Products in focus · 17/03/2026

N,N-Dimethylglycine sodium salt (DMG Na) is the sodium salt form of N,N-dimethylglycine, a tertiary amino acid derivative is white to off white crystalline solid, freely soluble in water.

READ MORE
In focus: Blown Castor Oil (15-17 Poise)
Products in focus · 10/03/2026

Blown Castor Oil (15-17 Poise) is a modified grade of Castor oil. The “15-17 Poise” specification refers to its viscosity range, indicating a medium-viscosity blown oil suitable for industrial applications requiring improved body, tackiness, and elasticity compared to regular castor oil.

READ MORE
In focus: Dimethyl Amino Ethanol (DMAE)
Products in focus · 03/03/2026

Dimethylaminoethanol (DMAE) is a is a tertiary amine that is ethanolamine having two N-methyl substituents. It is clear & colourless to pale yellow liquid with ammoniacal odor.  DMAE is stable at room temperature and is completely miscible with water as well as organic solvents such as alcohols and ethers. It decomposes at high temperatures. It is a versatile chemical intermediate primarily used as a curing agent for polyurethane foams and epoxy resins.

READ MORE
In focus: 1,4,7-Trimethyl-1,4,7-triazonane (Me₃TACN)
Products in focus · 24/02/2026

1,4,7-Trimethyl-1,4,7-triazonane (Me₃TACN) is a valuable macrocyclic tridentate ligand derived from 1,4,7-triazacyclononane. In Me₃TACN, each nitrogen atom is substituted with a methyl group, which significantly modifies its steric and electronic properties. Me₃TACN is widely used as a ligand in coordination chemistry due to its ability to form stable complexes with transition metals such as Cu, Ni, Fe, Mn, and Zn.

READ MORE
In focus: Adenosine
Products in focus · 17/02/2026

Adenosine is a naturally occurring purine nucleoside composed of adenine and ribose, present in all living cells. It plays a vital role in biochemical processes such as energy transfer (ATP/ADP), signal transduction, and regulation of physiological functions, and is widely used in pharmaceutical applications.

READ MORE
In focus: Methyl-2- Methoxy-5-Sulfamoyl Benzoate
Products in focus · 10/02/2026

Methyl-2-Methoxy-5-Sulfamoyl Benzoate (MSMB) is a sulfur containing organic building block acting as a chemical intermediate. MSMB contains ester and sulfamoyl functional groups, which make it useful as a pharmaceutical and fine-chemical intermediate.

READ MORE
In focus: Imidazolidinyl Urea
Products in focus · 03/02/2026

Imidazolidinyl urea is a widely used antimicrobial preservative in the cosmetic and personal care industry. It is a formaldehyde-releasing compound that effectively inhibits the growth of bacteria, yeast, and molds, thereby extending the shelf life of formulations. Due to its broad-spectrum efficacy and cost-effectiveness, it is commonly used in rinse-off and leave-on products within regulated concentration limits.

READ MORE
In focus: 2-Cyanoethyl tetraisopropylphosphorodiamidite
Products in focus · 20/01/2026

Phosphorodiamidites are a unique class of phosphorus-based compounds characterized by one P–O bond and two P–N moieties. 2-Cyanoethyl tetraisopropylphosphorodiamidite plays a crucial role in solid-phase oligonucleotide synthesis. Beyond their application as synthetic precursors for oligonucleotides, phosphorodiamidites have also been reported as valuable starting materials for the synthesis of industrially relevant polymers and flame-resistant materials, including adhesives, coatings, and laminates.

READ MORE