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.

什么是Propionic Acid？

Propionic Acid 是一种化学品，CAS 登记号为 79-09-4。分子式: C3H6O2. 摩尔质量: 74.08 g/mol. IUPAC: propanoic acid.

Propionic Acid 的 CAS 号是多少？

Propionic Acid 的 CAS 号为 79-09-4——化学文摘社 (CAS) 的唯一标识符。

Propionic Acid 的分子式是什么？

分子式: C3H6O2. 摩尔质量: 74.08 g/mol. logP (XLogP3): 0.3. PSA: 37.3 Å².

Propionic Acid 有哪些 GHS 危害？

根据 GHS 分类，Propionic Acid 须标注以下危险说明： H314 (造成严重皮肤灼伤和眼损伤), H335 (可引起呼吸道刺激).

在哪里可以购买Propionic Acid？

Propionic Acid 在我们的商店有售。查看产品：https://epchems.online/products/propionic-acid/

Propionic Acid 的化学数据来自哪里？

Propionic Acid 的化学数据来自权威来源：PubChem (NIH)。 PubChem CID: 1032. 符合 CLP 法规（EC 1272/2008），依据 CC-BY 4.0 许可提供。

Propionic Acid

CAS 79-09-4 · C₃H₆O₂ · MW 74.08 g/mol

关于 Propionic Acid

Propionic Acid 是一种化学品，登记号为 CAS 79-09-4，分子式为 C₃H₆O₂，摩尔质量为 74.08 g/mol。

该分子包含 11 个原子，通过 10 个化学键连接。该化合物的完整系统 IUPAC 名称为 propanoic acid。上方的交互式 3D 模型可查看原子的空间排列——您可以用鼠标旋转、用滚轮缩放，并在骨架 / 球棍 (Ball & Stick) / 空间填充 (Space Fill) 显示模式之间切换。

在理化性质方面，分配系数 logP = 0.3 (正值，亲脂性化合物)，极性表面积 PSA = 37.3 Å²，1 个氢键供体和 2 个氢键受体。这些参数对于评估生物利用度以及与生物分子的相互作用至关重要。

该化合物的化学数据来自 PubChem（NIH NLM NCBI），全球最大的化学数据库之一。所有信息均自动更新，并附有符合 CLP 法规（EC 1272/2008）的 GHS 危险说明翻译。上方的小部件可用于教育、研究和商业用途。

理化性质

Wzór sumaryczny	C₃H₆O₂
Masa molowa	74.08 g/mol
IUPAC	propanoic acid
SMILES	`CCC(=O)O`
InChIKey	`XBDQKXXYIPTUBI-UHFFFAOYSA-N`
logP (XLogP3)	0.3
PSA	37.3 Å²
HBD / HBA	1 / 2
PubChem CID	CID 1032 ↗

GHS 安全

Sygnał: Niebezpieczeństwo

GHS05

GHS07

H314 — Powoduje poważne oparzenia skóry oraz uszkodzenia oczu

H335 — Może powodować podrażnienie dróg oddechowych

科学文献

Literatura naukowa

20 artykułów · 17 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

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

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In Vitro Evaluation of Antiproliferative Properties of Novel Organotin(IV) Carboxylate Compounds with Propanoic Acid Derivatives on a Panel of Human Cancer Cell Lines.

et al. (2021)

Cytowania: 13Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis of N-Alkyl-3-[2-oxoquinolin-1(2H)-yl]propanoic Acid Derivatives and Related Compounds: Cytotoxicity and EGFR Inhibition of Some Propanamide Derivatives.

et al. (2024)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

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The Organogermanium Compound 3-(trihydroxygermyl)propanoic Acid Exerts Anti-Inflammatory Effects via Adenosine-NR4A2 Signaling.

et al. (2025)

Cytowania: 1Open AccessDOI ↗PubMed ↗PDF ↗

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Design and Synthesis of Highly Active Antimycobacterial Mutual Esters of 2-(2-Isonicotinoylhydrazineylidene)propanoic Acid.

et al. (2021)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

Discovery of (S)-3-(4-(benzyloxy)phenyl)-2-(2-phenoxyacetamido)propanoic acid derivatives as a new class of GPR34 antagonists.

et al. (2024)

Cytowania: 3$ PaywallDOI ↗PubMed ↗

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Synthetic Transformation of 2-{2-Fluoro[1,1'-biphenyl]-4-yl} Propanoic Acid into Hydrazide-Hydrazone Derivatives: In Vitro Urease Inhibition and In Silico Study.

et al. (2022)

Cytowania: 26Open AccessDOI ↗PubMed ↗PDF ↗

Biostability study, quantitation method and preliminary pharmacokinetics of a new antifilovirus agent based on borneol and 3-(piperidin-1-yl)propanoic acid.

et al. (2021)

Cytowania: 4$ PaywallDOI ↗PubMed ↗

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Synthesis of 2,3-(Diheterocyclyl)Propanoic Acid Esters as New Building Blocks via Complementary Meldrum's Acid and Aza-Michael Strategies.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis of 3-((4-Hydroxyphenyl)amino)propanoic Acid Derivatives as Promising Scaffolds for the Development of Antimicrobial Candidates Targeting Multidrug-Resistant Bacterial and Fungal Pathogens.

et al. (2024)

Cytowania: 8Open AccessDOI ↗PubMed ↗PDF ↗

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Ultrasound Assisted Synthesis and In Silico Modelling of 1,2,4-Triazole Coupled Acetamide Derivatives of 2-(4-Isobutylphenyl)propanoic acid as Potential Anticancer Agents.

et al. (2022)

Cytowania: 11Open AccessDOI ↗PubMed ↗PDF ↗

Improved flame retardancy of cotton fabric by crosslinking 3-hydroxyphenyl phosphinyl propanoic acid using 1,2,3,4-butane tetracarboxylic acid.

et al. (2025)

$ PaywallDOI ↗PubMed ↗

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Cationic Materials for Gene Therapy: A Look Back to the Birth and Development of 2,2-Bis-(hydroxymethyl)Propanoic Acid-Based Dendrimer Scaffolds.

(2023)

Cytowania: 8Open AccessDOI ↗PubMed ↗PDF ↗

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Multifunctional ionic hybrid poly(propyleneimine) dendrimers surrounded by carbazole dendrons: liquid crystals, optical and electrochemical properties†

Susana Castelar, Pilar Romero, José-Luis Serrano et al. (2015) · RSC Advances

Cytowania: 16Open AccessDOI ↗PDF ↗

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Identification of 3-((4-Hydroxyphenyl)amino)propanoic Acid Derivatives as Anticancer Candidates with Promising Antioxidant Properties.

et al. (2024)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis and Evaluation of Hypoglycemic Activity of Structural Isomers of ((Benzyloxy)phenyl)propanoic Acid Bearing an Aminobornyl Moiety.

et al. (2023)

Cytowania: 3Open AccessDOI ↗PubMed ↗PDF ↗

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3-[[(3S)-1,2,3,4-Tetrahydroisoquinoline-3-Carbonyl]Amino]Propanoic Acid (THICAPA) Is Protective Against Aβ42-Induced Toxicity In Vitro and in an Alzheimer's Disease Drosophila.

et al. (2023)

Cytowania: 2Open AccessDOI ↗PubMed ↗PDF ↗

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Apiol from Parsley Seeds as a Source for the Synthesis of Coenzyme Q0 Propanoic Acid Conjugates with Amines Featuring Antioxidant Activity.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis and Development of 3-((2,4-Difluorophenyl)Amino)Propanoic Acid Derivatives as an Antiproliferative Medicinal Chemistry Scaffold Targeting Growth Factor Receptors.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Identification of 3-[(4-Acetylphenyl)(4-Phenylthiazol-2-Yl)Amino]Propanoic Acid Derivatives as Promising Scaffolds for the Development of Novel Anticancer Candidates Targeting SIRT2 and EGFR.

et al. (2025)

Open AccessDOI ↗PubMed ↗PDF ↗

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Propanoic Acid-Derived Nitrogen-Doped Carbon Nanoparticles with Enhanced Fluorescence for Cellular Imaging

Van-Thuan Nguyen, Narendhar Chandrasekar, Michael Taeyoung Hwang et al. (2026) · Applied Sciences

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.

数据来源

📊 PubChem CID 1032 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

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