93050-82-9

Basic information

• Product Name: Polyvinyl chloride
• Synonyms: PVC
• CAS NO: 93050-82-9
• Molecular Formula: C₁₂H₁₆O₂
• Molecular Weight: 0
• EINECS: 200-831-0
• Mol File: 93050-82-9.mol

Chemical Properties

• Appearance: /
• Density: 0.918g/cm³
• Vapor Pressure: 2580mmHg at 25°C
• Refractive Index: 1.383
• CAS DataBase Reference: Polyvinyl chloride(CAS DataBase Reference)
• NIST Chemistry Reference: Polyvinyl chloride(93050-82-9)
• EPA Substance Registry System: Polyvinyl chloride(93050-82-9)

Safety Data

• Hazard Codes: Xi:Irritant
• Statements: R36/37/38:
• Safety Statements: S26:; S36/37:
• Hazardous Substances Data: 93050-82-9(Hazardous Substances Data)

Usage

Uses

Used in Construction Industry:
PVC is used as a construction material for its durability and resistance to weathering, serving in applications such as pipes, windows, and doors.
Used in Electrical Industry:
PVC is utilized as an electrical insulator due to its insulating properties, making it suitable for various electrical applications.
Used in Medical Industry:
PVC is employed in the manufacturing of medical devices, taking advantage of its chemical resistance and ability to be sterilized.
Used in Automotive Industry:
PVC is used in the production of automotive parts, leveraging its durability and resistance to abrasion.
Used in Packaging Industry:
PVC is applied in packaging materials for its ability to be molded into various shapes and its resistance to certain chemicals.
However, it is important to note that PVC has been a subject of environmental and health concerns due to the release of harmful chemicals such as dioxins and phthalates during its production and disposal. As a result, there is an ongoing effort to develop more sustainable alternatives to PVC and to improve the recycling and waste management of PVC products.

InChI:InChI=1/C2H3Cl/c1-2-3/h2H,1H2

Upstream product

• 499-75-2 carvacrol 
• 108-24-7 acetic anhydride 
• 75-36-5 acetyl chloride 
• 64-19-7 acetic acid 
• 10309-68-9 (+)-4-trans-isopropenyl-1-methylbicyclo<3.1.0>hexan-2-one 
• 2033-24-1 cycl-isopropylidene malonate 
• 89-83-8 thymol 
• 10309-65-6 (-)-4α-acetoxy-3β-hydroxy-trans-carane 

Relevant articles and documents

Magnetically recyclable silica-coated ferrite magnetite-K10montmorillonite nanocatalyst and its applications in O, N, and S-acylation reaction under solvent-free conditions

Novel silica-coated ferrite nanoparticles supported with montmorillonite (K10) have been prepared successfully by using a simple impregnation method. Further, these nanoparticles were characterized by using different analytical methods like FT-IR, PXRD, EDS, and FE-SEM techniques. In addition, these nanoparticles have been explored for their catalytic activity for the O, N, and S-acylation reactions under solvent-free conditions which gave moderate to excellent yields in a much shorter reaction time. Moreover, these nanoparticles could easily be separated out from the reaction medium after the reaction completion by using an external magnetic field and have been re-used for 10 cycles without any significant loss of the catalytic activity.

Structure-Odor Activity Studies on Derivatives of Aromatic and Oxygenated Monoterpenoids Synthesized by Modifying p-Cymene

Thymoquinone was recently reported as having a unique pencil-like odor and being the impact compound for the cedar-like and cedar wood-based product smell such as pencils. The compounds thymol and carvacrol are structurally related odorants commonly found in plants and foods such as thyme and oregano, also having a significant contribution to their overall aroma. However, a systematic elucidation of the sensory properties in this class of oxygenated, aromatic monoterpenoids has not been carried out. To close this gap and gain new insights into structure-odor relationships leading to pencil-like and woody odors, 19 structurally related derivatives of p-cymene starting from thymol and carvacrol were synthesized and characterized. The compounds had odor thresholds ranging from 2.0 ng/L air to 388.8 ng/L air, being lowest for thymol and carvacrol and highest for thymohydroquinone. The compounds smelled mostly thyme-like, oregano-like, and pencil-like with phenolic, earthy, and medicinal variations in their odor character, which could be successfully linked to structural motifs.

Environmentally benign decarboxylative: N-, O-, and S-Acetylations and acylations

An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum's acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically pure acetylated products without the requirement of work-up and any chromatography. This journal is

INSECTICIDAL COMPOSITION

PROBLEM TO BE SOLVED: To provide a composition that can exhibit effective insecticidal action on insect pests. SOLUTION: An insecticidal composition comprises, e.g., a compound represented by general formula (1) in the figure. [R1 is a C1-10 alkyl group or the like, where the alkyl group and the like may be substituted with a halogen atom or the like; R2 is a hydrogen atom or the like, or R2 may bind a methoxy group binding a carbon atom adjacent to a carbon atom which R2 binds, to form a -O-CH2-O- group.] SELECTED DRAWING: None COPYRIGHT: (C)2021,JPO&INPIT

Antifungal activity of phenolic monoterpenes and structure-related compounds against plant pathogenic fungi

The aim of this work is to explore the possibility of using the phenolic monoterpenes (PMs) as leading compounds with antifungal activity against plant disease. The in vitro antifungal activities of carvacrol and thymol against seven kinds of plant pathogenic fungi were evaluated on mycelium growth rate method, and the results showed that carvacrol and thymol exhibited broad spectrum antifungal activity. Structure requirement for the antifungal activity of PMs was also investigated. The preliminary conclusion was that phenolic hydroxyl and monoterpene were basic structures for the antifungal activity of PMs, and the position of phenolic hydroxyl showed less effect. Ester derivatives of carvacrol and thymol were more effective than carvacrol and thymol against plant pathogenic fungi. We suggested that carvacrol, thymol and their ester derivatives could potentially be used as new fungicide leading compounds.

INSECTICIDAL COMPOSITION

PROBLEM TO BE SOLVED: To provide a composition that can exhibit effective insecticidal action on pests. SOLUTION: An insecticidal composition comprises a compound represented by general formula (1) [R1 is a C1-10 alkyl group or the like, where the alkyl group and the like may be substituted with a halogen atom and the like; R2 is a hydrogen atom and the like, or R2 may bind a methoxy group binding a carbon atom adjacent to a carbon atom which R2 binds, to form a -O-CH2-O- group]. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

Carvacryl acetate, a novel semisynthetic monoterpene ester, binds to the TRPA1 receptor and is effective in attenuating irinotecan-induced intestinal mucositis in mice

Objectives: We aimed to determine whether carvacryl acetate acts as a TRPA1 receptor agonist and its effects against irinotecan (CPT-11) induced intestinal mucositis in mice. Methods: TRPA1 structure was obtained from a protein databank, and the 3D structure of carvacryl acetate was determined. Appropriate binding conformations were discovered via automatic docking simulations. To determine the effect of carvacryl acetate in vivo, mice were treated with either DMSO 2%, CPT-11, carvacryl acetate followed by CPT-11, or HC-030031, a TRPA1 antagonist, followed by carvacryl acetate. Jejunum samples were taken and structural, inflammatory and antioxidant parameters were studied. Key findings: Eight amino acids residues in TRPA1 established stable interactions with carvacryl acetate, which led to pharmacological efficacy against CPT-11-induced intestinal mucositis via reduction of both neutropenia and bacteremia, increase in villi height and crypt depth, decrease in pro-inflammatory cytokines (interleukin-1β, keratinocyte chemoattractant and tumour necrosis factor-α) and decrease in malondialdehyde and nitric oxide metabolite levels in the jejunum. Conclusions: Carvacryl acetate is a promising anti-inflammatory and antioxidant agent, a fact confirmed through observations of its interactions with TRPA1 in CPT-11-induced intestinal mucositis in mice.

Heteropoly acid catalysts for the synthesis of fragrance compounds from bio-renewables: Acetylation of nopol and terpenic alcohols

The cesium salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40, is an active and environmentally friendly heterogeneous catalyst for the liquid-phase acetylation of nopol and several biomass-derived terpenic alcohols (i.e., α-terpineol, nerol, geraniol, linalool, menthol, isoborneol, perillyl alcohol, carveol, isopulegol, carvacrol and nerolidol) with acetic anhydride. The resulting flavor and fragrance acetic esters, which are widely used in perfumery, household and food products, are obtained in good to excellent yields. The reactions occur at room temperature with low catalyst loadings without substantial catalyst leaching and can be performed with stoichiometric amounts of an acetylating agent in solvent free systems.

Neuropharmacological effects of carvacryl acetate on δ-aminolevulinic dehydratase, Na+, K+-ATPase activities and amino acids levels in mice hippocampus after seizures

Epileptic syndromes are highly prevalent neurological conditions and can often be disabling. In order to find an alternative for treatment, this study evaluated anticonvulsant effects of carvacryl acetate (CA), a derivative of monoterpene carvacrol, after seizures induced by pilocarpine (P400), picrotoxin (PIC) or pentylenetetrazol (PTZ). We also analyzed the CA effects on Na+, K+-ATPase and δ-aminolevulinic acid dehydratase (δ-ALA-D) activities in hippocampus mice after seizures induced by P400, PIC or PTZ. In addition, glutamate, δ-aminobutyric acid (GABA), glutamine and aspartate levels in mice hippocampus treated with CA after seizures induced by P400, PIC or PTZ were also measured. CA produced anticonvulsant effects against seizures induced by P400, PIC or PTZ, and its effects were reversed by flumazenil, suggesting that action mechanism can be mediated by GABAergic system. CA increased GABA levels, but did not alter glutamate and aspartate concentrations in mice hippocampus after seizures induced by P400, PIC or PTZ when compared with seizures induced by P400, PIC or PTZ (p +, K+-ATPase and δ-aminolevulinic acid dehydratase activities after seizures induced by P400, PIC or PTZ when compared with seizures induced by P400, PIC or PTZ (p 0.05), respectively. This study demonstrated that CA could be a future therapeutic option for treatment of epilepsy, with a multifactorial brain action mechanism.

Identification and structure-activity relationship study of carvacrol derivatives as Mycobacterium tuberculosis chorismate mutase inhibitors

In the present study, we identified carvacrol, a major phenolic component of oregano oil as a novel small molecule inhibitor of Mycobacterium tuberculosis (MTB) chorismate mutase (CM) enzyme with IC50 of 1.06±0.4μM. Virtual screening of the BITS-Pilani in-house database using the crystal structure of the MTB CM bound transition state intermediate (PDB: 2FP2) as framework identified carvacrol as a potential lead. Further various carvacrol derivatives were evaluated in vitro for their ability to inhibit MTB CM enzyme, whole cell MTB and cytotoxicity as steps toward the derivation of structure-activity relationships (SAR) and lead optimization.