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.

Sorbitol is een chemische verbinding, geregistreerd onder CAS-nummer 50-70-4. Brutoformule: C6H14O6. Molaire massa: 182.17 g/mol. IUPAC: (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol.

Wat is het CAS-nummer van Sorbitol?

Het CAS-nummer van Sorbitol is 50-70-4 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Sorbitol?

Brutoformule: C6H14O6. Molaire massa: 182.17 g/mol. logP (XLogP3): -3.1. PSA: 121 Å².

Waar kan ik Sorbitol kopen?

Sorbitol is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/sorbitol/

Waar komen de chemische gegevens voor Sorbitol vandaan?

De chemische gegevens voor Sorbitol zijn afkomstig van gezaghebbende bronnen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 5780. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Sorbitol

CAS 50-70-4 · C₆H₁₄O₆ · MW 182.17 g/mol

Over Sorbitol

Sorbitol is een chemische verbinding, geregistreerd onder nummer CAS 50-70-4, met de brutoformule C₆H₁₄O₆, en een molaire massa van 182.17 g/mol.

Het molecuul bevat 26 atomen verbonden door 25 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol. Het interactieve 3D-model hierboven toont de ruimtelijke rangschikking van de atomen — u kunt het met de muis draaien, met het scrollwiel inzoomen en schakelen tussen de weergavemodi skelet / Ball & Stick / Space Fill.

Wat de fysisch-chemische eigenschappen betreft, de verdelingscoëfficiënt logP = -3.1 (negatieve waarde, hydrofiele verbinding), polair oppervlak PSA = 121 Å², 6 donoren en 6 waterstofbrugacceptoren. Deze parameters zijn cruciaal bij de beoordeling van de biobeschikbaarheid en de interactie met biomoleculen.

De chemische gegevens voor deze verbinding zijn afkomstig van PubChem (NIH NLM NCBI), een van de grootste chemische databanken ter wereld. Alle informatie wordt automatisch bijgewerkt en verrijkt met vertalingen van GHS-gevarenaanduidingen conform de CLP-verordening (EG 1272/2008). De bovenstaande widget mag worden gebruikt voor educatieve, onderzoeks- en commerciële doeleinden.

Fysisch-chemische eigenschappen

Wzór sumaryczny	C₆H₁₄O₆
Masa molowa	182.17 g/mol
IUPAC	(2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol
SMILES	`C([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O`
InChIKey	`FBPFZTCFMRRESA-JGWLITMVSA-N`
logP (XLogP3)	-3.1
PSA	121 Å²
HBD / HBA	6 / 6
PubChem CID	CID 5780 ↗

Wetenschappelijke literatuur

Literatura naukowa

8 artykułów · 4 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (8 artykułów)

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

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Mechano-dependent sorbitol accumulation supports biomolecular condensate.

Torrino S, Oldham WM, Tejedor AR et al. (2025) · Cell

Open AccessDOI ↗PubMed ↗PDF ↗

Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.

Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care

Review$ PaywallDOI ↗PubMed ↗

Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.

Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care

Review$ PaywallDOI ↗PubMed ↗

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High fat intake sustains sorbitol intolerance after antibiotic-mediated Clostridia depletion from the gut microbiota.

Lee JY, Tiffany CR, Mahan SP et al. (2024) · Cell

Open AccessDOI ↗PubMed ↗PDF ↗

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Intestine-derived sorbitol drives steatotic liver disease in the absence of gut bacteria.

Jackstadt MM, Fowle-Grider R, Song MG et al. (2025) · Science signaling

Open AccessDOI ↗PubMed ↗PDF ↗

Tackling sorbitol intolerance.

Papatriantafyllou M (2024) · Nature reviews. Gastroenterology & hepatology

$ PaywallDOI ↗PubMed ↗

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Host Sorbitol and Bacterial Sorbitol Utilization Promote Clostridioides difficile Infection in Inflammatory Bowel Disease.

Yang Z, Qin J, Zhao L et al. (2023) · Gastroenterology

Open AccessDOI ↗PubMed ↗PDF ↗

Identification of catabolic pathway for 1-deoxy-D-sorbitol in Bacillus licheniformis.

Li Y, Huang H, Zhang X (2022) · Biochemical and biophysical research communications

$ PaywallDOI ↗PubMed ↗

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

Synoniemen

D-Sorbitol · sorbitol · D-Glucitol · 50-70-4 · glucitol · Glucarine · (-)-Sorbitol · Nivitin · Sorbit · D-(-)-Sorbitol · Diakarmon · Sorbilande · Sorbostyl · Esasorb · Multitol

Gegevensbronnen

📊 PubChem CID 5780 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Kopen in de winkel

Sorbitol →

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Propylene Glycol Ethyl Ether CAS 1569-02-4 · C5H12O2 Tetraethylene Glycol CAS 112-60-7 · C8H18O5 Diethylene glycol dimethyl ether CAS 111-96-6 · C6H14O3 Trichloroethylene CAS 79-01-6 · C2HCl3 Tert-Butanol CAS 75-65-0 · C4H10O Methyl acetate CAS 79-20-9 · C3H6O2