Does BMA mean n-butyl methacrylate or isobutyl methacrylate?

In most commercial usage the bare abbreviation means the normal isomer, n-butyl methacrylate, CAS 97-88-1. The branched isomer, isobutyl methacrylate, is a different substance with its own identifiers and a different contribution to copolymer hardness, and the tertiary isomer is different again. Because all three are abbreviated loosely in day-to-day correspondence, an order written as BMA alone is ambiguous. Write the full chemical name and the CAS number on every enquiry, purchase order and goods-inwards record.

Why must the monomer not be blanketed with pure nitrogen?

Because the stabiliser used in commercial methacrylate monomers requires dissolved oxygen to function. It intercepts radicals by a mechanism that consumes oxygen, so a drum stripped of oxygen contains an inhibitor that is chemically present and functionally absent. The correct headspace is air, or air diluted with nitrogen to a specified oxygen content, never an inert blanket. This is one of the very few cases in a chemical store where displacing oxygen makes a material more dangerous rather than less, and it catches people whose instinct is trained on flammable solvents.

How should inhibitor content be read on a certificate?

As a starting condition rather than a permanent property. The certificate reports the inhibitor level at release; that level falls in storage as the stabiliser does its job, and it falls faster in warm conditions, in light and in the presence of contamination. A long-stored drum can meet its original certificate on every other line while having very little inhibitor left. Where storage has been long or uncertain, retest the inhibitor level before charging a reactor rather than relying on the release figure.

What is popcorn polymerisation and why does it matter here?

It is a self-propagating, expanding polymer growth that forms in dead legs, vapour spaces, valve bonnets and residues where inhibitor cannot reach. Once seeded it continues under conditions that would not start a normal polymerisation, and it grows mechanically enough to jam valves and distort equipment. The controls are housekeeping controls: no unswept dead legs, no long-standing residues, no lines left full between campaigns, and clean vessels before refilling. It is not a reason to avoid methacrylate monomers, but it is a reason to design the pipework as if the monomer were reactive, because it is.

How does the butyl ester change a copolymer compared with the methyl one?

The four-carbon ester side chain is flexible and bulky, so it loosens chain packing and lowers the temperature at which the polymer softens. Against the methyl ester it gives a softer, more flexible and more extensible polymer, better adhesion and easier film formation, at the cost of hardness and block resistance. Against the corresponding acrylate it gives a harder polymer with the weathering advantage of the methacrylate backbone. Formulators use it as the soft component of an all-methacrylate system, which keeps the durability while tuning flexibility.

Che cos'è Triethylene Diamine?

Triethylene Diamine è un composto chimico registrato con il numero CAS 280-57-9. Formula bruta: C6H12N2. Massa molare: 112.17 g/mol. IUPAC: 1,4-diazabicyclo[2.2.2]octane.

Qual è il numero CAS di Triethylene Diamine?

Il numero CAS di Triethylene Diamine è 280-57-9 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Triethylene Diamine?

Formula bruta: C6H12N2. Massa molare: 112.17 g/mol. logP (XLogP3): -0.2. PSA: 6.5 Å².

Quali sono i pericoli GHS di Triethylene Diamine?

Secondo la classificazione GHS, Triethylene Diamine deve riportare le seguenti indicazioni di pericolo: H228 (Solido infiammabile.), H302 (Nocivo se ingerito.), H315 (Provoca irritazione cutanea.), H319 (Provoca grave irritazione oculare.), H361 (Sospettato di nuocere alla fertilità o al feto.).

Dove acquistare Triethylene Diamine?

Triethylene Diamine è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/triethylene-diamine/

Da dove provengono i dati chimici di Triethylene Diamine?

I dati chimici di Triethylene Diamine provengono da fonti autorevoli: PubChem (NIH), ChEMBL (EBI). PubChem CID: 9237. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Triethylene Diamine

Dabco

CAS 280-57-9 · C₆H₁₂N₂ · MW 112.17 g/mol

Informazioni su Triethylene Diamine

Triethylene Diamine è un composto chimico registrato con il numero CAS 280-57-9, con formula bruta C₆H₁₂N₂, e massa molare di 112.17 g/mol.

La molecola contiene 20 atomi collegati da 21 legami chimici. Il nome sistematico IUPAC completo di questo composto è 1,4-diazabicyclo[2.2.2]octane. Il modello 3D interattivo qui sopra permette di visualizzare la disposizione spaziale degli atomi — puoi ruotarlo con il mouse, zoomare con la rotellina e passare tra le modalità di visualizzazione scheletro / Ball & Stick / Space Fill.

Dal punto di vista delle proprietà chimico-fisiche, il coefficiente di ripartizione logP = -0.2 (valore negativo, composto idrofilo), superficie polare PSA = 6.5 Å², 0 donatori e 2 accettori di legami a idrogeno. Questi parametri sono fondamentali per valutare la biodisponibilità e l'interazione con le biomolecole.

I dati chimici di questo composto provengono da PubChem (NIH NLM NCBI), uno dei più grandi database chimici al mondo. Tutte le informazioni sono aggiornate automaticamente e arricchite con le traduzioni delle indicazioni di pericolo GHS conformi al Regolamento CLP (CE 1272/2008). Il widget qui sopra può essere utilizzato per scopi educativi, di ricerca e commerciali.

Proprietà chimico-fisiche

Wzór sumaryczny	C₆H₁₂N₂
Masa molowa	112.17 g/mol
IUPAC	1,4-diazabicyclo[2.2.2]octane
SMILES	`C1CN2CCN1CC2`
InChIKey	`IMNIMPAHZVJRPE-UHFFFAOYSA-N`
logP (XLogP3)	-0.2
PSA	6.5 Å²
HBD / HBA	0 / 2
PubChem CID	CID 9237 ↗

Sicurezza GHS

Sygnał: Niebezpieczeństwo

GHS02

GHS07

GHS08

H228 — Substancja stała łatwopalna

H302 — Działa szkodliwie po połknięciu

H315 — Działa drażniąco na skórę

H319 — Działa drażniąco na oczy

H361 — Podejrzewa się, że działa szkodliwie na płodność lub na dziecko w łonie matki

H371 — Może spowodować uszkodzenie narządów

H372 — Powoduje uszkodzenie narządów poprzez długotrwałe lub powtarzane narażenie

Letteratura scientifica

Literatura naukowa

20 artykułów · 10 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

Wysokość słupka = liczba artykułów w roku. Hover dla szczegółów.

Isatin N,N'-Cyclic Azomethine Imine 1,3-Dipole and Abnormal [3 + 2]-Cycloaddition with Maleimide in the Presence of 1,4-Diazabicyclo[2.2.2]octane.

et al. (2017)

Cytowania: 22$ PaywallDOI ↗PubMed ↗

Self-assembling systems based on quaternized derivatives of 1,4-diazabicyclo[2.2.2]octane in nutrient broth as antimicrobial agents and carriers for hydrophobic drugs.

et al. (2015)

Cytowania: 13$ PaywallDOI ↗PubMed ↗

Polycations. 18. The synthesis of polycationic lipid materials based on the diamine 1,4-diazabicyclo[2.2.2]octane.

et al. (2009)

Cytowania: 13$ PaywallDOI ↗PubMed ↗

Synthesis and structure-activity relationship of novel 1,4-diazabicyclo[2.2.2]octane derivatives as potent antimicrobial agents.

et al. (2015)

Cytowania: 9$ PaywallDOI ↗PubMed ↗

Ring-opening reactions of 1,4-diazabicyclo[2.2.2]octane (DABCO) derived quaternary ammonium salts with phenols and related nucleophiles.

(2012)

Cytowania: 8$ PaywallDOI ↗PubMed ↗

Feasibility of quaternary ammonium and 1,4-diazabicyclo[2.2.2]octane-functionalized anion-exchange membranes for biohydrogen production in microbial electrolysis cells.

et al. (2020)

Cytowania: 5$ PaywallDOI ↗PubMed ↗

Synthesis of chiral 2,3-disubstituted 1,4-diazabicyclo[2.2.2]octane derivatives.

(2015)

Cytowania: 3$ PaywallDOI ↗PubMed ↗

🔓

Synthesis, Antifungal Activity, and Biocompatibility of Novel 1,4-Diazabicyclo[2.2.2]Octane (DABCO) Compounds and DABCO-Containing Denture Base Resins.

et al. (2017)

Cytowania: 12Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Third-generation ionic liquids with N-alkylated 1,4-diazabicyclo[2.2.2]octane cations and pelargonate anions.

et al. (2020)

Cytowania: 10Open AccessDOI ↗PubMed ↗PDF ↗

Alkylated 1,4-diazabicyclo[2.2.2]octane derivatives with an ester moiety: From self-organization to transdermal insulin delivery.

et al. (2026)

$ PaywallDOI ↗PubMed ↗

🔓

Cation Charge as a Tool to Change Dimensionality in Organic-Inorganic Hybrids Based on Copper Thiocyanate Templated by 1,4-Diazabicyclo[2.2.2]octane.

(2023)

Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Structural and spectral studies of (1,3,5-triazinane-2,4,6-trione) 1,4-diazabicyclo[2.2.2]octane (TTDO)

et al. (2023)

Open AccessDOI ↗PDF ↗

🔓

Systematic study of the substitution effect on the tetrel bond between 1,4-diazabicyclo[2.2.2]octane and TH3X.

et al. (2019)

Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Multiple Roles of 1,4-Diazabicyclo[2.2.2]octane in the Solvothermal Synthesis of Iodobismuthates.

Cai Y, Chippindale AM, Curry RJ et al. (2021) · Inorganic chemistry

Cytowania: 8Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Sulfonylation of 1,4-Diazabicyclo[2.2.2]octane: Charge-Transfer Complex Triggered C-N Bond Cleavage.

Fu Y, Xu QS, Li QZ et al. (2019) · ChemistryOpen

Cytowania: 8Open AccessDOI ↗PubMed ↗PDF ↗

🔓

Self-Assembling Metallocomplexes of the Amphiphilic 1,4-Diazabicyclo[2.2.2]octane Derivative as a Platform for the Development of Nonplatinum Anticancer Drugs.

et al. (2022)

Cytowania: 7Open AccessDOI ↗PubMed ↗PDF ↗

🔓

N-Alkylated 1,4-Diazabicyclo[2.2.2]octane-Polyethylene Glycol Melt as Deep Eutectic Solvent for the Synthesis of Fisher Indoles and 1H-Tetrazoles.

Ali Ghumro S, Alharthy RD, Al-Rashida M et al. (2017) · ACS omega

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

Preparation of a 1,4-Diazabicyclo[2.2.2]octane sulfonate betaine zwitterionic stationary phase and comparative evaluation of its separation performance in hydrophilic interaction chromatography.

et al. (2025)

Cytowania: 3$ PaywallDOI ↗PubMed ↗

A new surfactant-copper(ii) complex based on 1,4-diazabicyclo[2.2.2]octane amphiphile. Crystal structure determination, self-assembly and functional activity.

et al. (2018)

Cytowania: 5$ PaywallDOI ↗PubMed ↗

🔓

Synthesis of Azirinylammonium Salts via Alkylation of DABCO with 2-Halo-2H-azirines

Maksim A. Valiarovskii, Alexander V. Vorob’ev, Anastasiya V. Agafonova et al. (2026) · Molbank

Open AccessDOI ↗PDF ↗

Dane z PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary wygenerowane przez Semantic Scholar TLDR. Artykuły z ikoną wymagają płatnego dostępu.

Sinonimi

1,4-Diazabicyclo[2.2.2]octane · Triethylenediamine · 280-57-9 · Dabco · 1,4-DIAZABICYCLO(2.2.2)OCTANE · Dabco 33LV · Dabco crystal · 1,4-Ethylenepiperazine · TEDA · Texacat TD 100 · Dabco EG · N,N'-endo-Ethylenepiperazine · 1,4-Diazabicyclo-octane · D 33LV · Thancat TD 33

Fonti dei dati

📊 PubChem CID 9237 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

Triethylene Diamine →

Molecole correlate

Tripropylene glycol monobutyl ether CAS 55934-93-5 · C13H28O4 Acetone CAS 67-64-1 · C3H6O Iron oxide black CAS 12227-89-3 · Fe₃O₄ Methyl methacrylate (MMA) CAS 80-62-6 · C5H8O2 Sodium cyanide CAS 143-33-9 · CNNa Sodium Glutamate CAS 142-47-2 · C5H10NNaO5