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 L-lisina cloridrato?

L-lisina cloridrato è un composto chimico registrato con il numero CAS 657-27-2. Formula bruta: C₆H₁₅ClN₂O₂. Massa molare: 182.65 g/mol. IUPAC: (2S)-2,6-diaminohexanoic acid;hydrochloride.

Qual è il numero CAS di L-lisina cloridrato?

Il numero CAS di L-lisina cloridrato è 657-27-2 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di L-lisina cloridrato?

Formula bruta: C₆H₁₅ClN₂O₂. Massa molare: 182.65 g/mol. PSA: 89.3 Å².

Dove acquistare L-lisina cloridrato?

L-lisina cloridrato è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/l-lysine-hcl-high/

Da dove provengono i dati chimici di L-lisina cloridrato?

I dati chimici di L-lisina cloridrato provengono da fonti autorevoli: PubChem (NIH), ChEMBL (EBI). PubChem CID: 69568. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

L-lisina cloridrato

L-Lysine monohydrochloride

CAS 657-27-2 · C₆H₁₅ClN₂O₂ · MW 182.65 g/mol

Informazioni su L-lisina cloridrato

L-lisina cloridrato è un composto chimico registrato con il numero CAS 657-27-2, con formula bruta C₆H₁₅ClN₂O₂, e massa molare di 182.65 g/mol.

La molecola contiene 26 atomi collegati da 24 legami chimici. Il nome sistematico IUPAC completo di questo composto è (2S)-2,6-diaminohexanoic acid;hydrochloride. 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, superficie polare PSA = 89.3 Å², 4 donatori e 4 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	C₆H₁₅ClN₂O₂
Masa molowa	182.65 g/mol
IUPAC	(2S)-2,6-diaminohexanoic acid;hydrochloride
SMILES	`C(CCN)C[C@@H](C(=O)O)N.Cl`
InChIKey	`BVHLGVCQOALMSV-JEDNCBNOSA-N`
logP (XLogP3)	—
PSA	89.3 Å²
HBD / HBA	4 / 4
PubChem CID	CID 69568 ↗

Letteratura scientifica

Literatura naukowa

9 artykułów · 7 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (9 artykułów)

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

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CYLD-mediated lysine63 deubiquitination regulates synaptic transmission and autophagy to mitigate age-related sequelae.

Sotiriou A, Konstantinidis G, Tavernarakis N (2026) · Nature communications

Open AccessDOI ↗PubMed ↗PDF ↗

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Lysine restriction attenuates obesity-related anxiety-like behaviors via increasing Oscillibacter ruminantium-mediated tryptophol regulation.

Zhao F, Wang J, Liang W et al. (2025) · Microbiome

Open AccessDOI ↗PubMed ↗PDF ↗

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ETV4 lysine 2-hydroxyisobutyrylation promotes intrahepatic cholangiocarcinoma progression by suppressing ferroptosis through TXNIP downregulation.

Wu J, Ma Y, Wang X et al. (2026) · Cancer letters

Open AccessDOI ↗PubMed ↗PDF ↗

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SUCLA2 Inhibited Lysine Succinylation of SHMT2 to Suppress Ferroptosis and Renal Interstitial Fibrosis.

Lyu H, Hou D, Liu Y et al. (2025) · FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Open AccessDOI ↗PubMed ↗PDF ↗

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HDAC2 as a therapeutic target in bladder cancer: insights into the altered epigenetic regulation and lysine lactylation.

Xu G, Liang S, Hu G et al. (2025) · Journal of experimental & clinical cancer research : CR

Open AccessDOI ↗PubMed ↗PDF ↗

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KDM3A catalyses the oxidation of acetyl-lysine to hydroxyacetyl-lysine on histone H3K9.

Belle R, Bukowski JP, Schiller R et al. (2026) · Nature chemistry

Open AccessDOI ↗PubMed ↗PDF ↗

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Lysine malonylation regulates human sperm motility.

Cheng Y, Tian Y, Chen H et al. (2026) · Communications biology

Open AccessDOI ↗PubMed ↗PDF ↗

Lysine (2,6-Diaminohexanoic Acid, H2l)

O. Yamauchi, A. Odani (2016) · IUPAC Standards Online

$ PaywallDOI ↗

l-Lysine Monohydrochloride.

$ PaywallDOI ↗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

L-Lysine hydrochloride · 657-27-2 · L-Lysine monohydrochloride · lysine hydrochloride · L-Lysine, monohydrochloride · L-(+)-Lysine Monohydrochloride · Lysine hcl, l- · JNJ23Q2COM · Lysine, l-, monohydrochloride · NSC-9253 · CHEBI:53633 · Trulysine · VIRALYS · ENISYL-F · RefChem:55525

Fonti dei dati

📊 PubChem CID 69568 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

L-Lysine HCl – High →

Molecole correlate

Iron oxide red CAS 1309-37-1 · Fe₂O₃ Polyethylene glycol CAS 25322-68-3 Tert-Butanol CAS 75-65-0 · C4H10O Tetrahydrofuran CAS 109-99-9 · C4H8O Succinic Acid CAS 110-15-6 · C4H6O4 Iron oxide yellow CAS 51274-00-1 · FeH₃O₃