100mL with de-ionised water. : FSHT185-100 Synonyms 2-Isopropyl-5-Methylphenol; 3-Hydroxy-P-Cymene; Thymic Acid Recommended Use Laboratory chemicals. Product Name Thymol Cat No. [24] Thymol is also the active antiseptic ingredient in some toothpastes, such as Johnson & Johnson's Euthymol. Thymol also provides the distinctive, strong flavor of the culinary herb thyme, also produced from T. vulgaris. Majority of the information on lobachemie.com Acid-base indicators are chemicals used to determine whether an … HEALTH HAZARD NFPA INSTABILITY SUPPLIER Company: Santa Cruz Biotechnology, Inc. … As the pH increases, the H2In is converted to yellow HIn-, which dominates the … It is also soluble in strongly alkaline aqueous solutions due to deprotonation of the phenol. 4- 0.01 M EDTA solution. Example \(\PageIndex{1}\) Find an indicator for the titration of a 0.100 M solution of a weak acid \(\ce{HA}\) (\(K_a = 6.2 \times … In several sources, the structure of phenol red is shown with the sulfur atom being part of a cyclic group, similar to the structure of phenolphthalein. Purity CAS No. [20], Thyme essential oil is useful in preservation of food. Certificate of Analysis (COAs) Physical Properties. 8YB4804L4M. [6], Regions lacking natural sources of thymol obtain the compound via total synthesis. Media related to Thymol at Wikimedia Commons, Chemical compound found in plants including thyme, InChI=1S/C10H14O/c1-7(2)9-5-4-8(3)6-10(9)11/h4-7,11H,1-3H3, InChI=1/C10H14O/c1-7(2)9-5-4-8(3)6-10(9)11/h4-7,11H,1-3H3, Except where otherwise noted, data are given for materials in their, Environmental breakdown and use as a pesticide, CAS Registry: Data obtained from SciFinder. Molecular Weight: 466.59. Intermediate colors include orange/yellow (pH 3 to 6), green (pH 7 or neutral), and blue (pH 8 to 11). Thymol Blue - 2 nd change: yellow: blue: 8.9: 8.0 - 9.6: Phenolphthalein: colourless: pink: 9.4: 8.2 - 10.0: A Universal Indicator is a mixture of indicators which give a gradual change in colour over a wide pH range - the pH of a solution can be approximately identified when a few drops of universal indicator are mixed with the solution. B. COVID-19 is an emerging, rapidly evolving situation. Nychas G.J.E. © Copyright. Thymol | C10H14O | CID 6989 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. REAGENTS: 1- Barium ions solution (analyte) 2- 1M sodium hydroxide solution (pH 12) 3- Methyl Thymol Blue indicator . [Methyl Thymol Blue Complexone Indicator For Complexometric titration][020071] 1945-77-3 | C37H40N2Na4O13S | Buy & Get Information for your research needs by CDH, India. Find MSDS or SDS, COA, Data Sheet and other information of high quality specialty chemicals manufacturer, supplier, exporter. *Please select more than one item to compare It is insoluble in water but it is soluble in alcohol and dilute alkali solutions. [10] In the European Middle Ages, the herb was placed beneath pillows to aid sleep and ward off nightmares. Under most favorable conditions, it is processed by our deft professionals using excellent quality chemicals at our advanced processing unit. Complies with the following test. Sign Out. For example, "universal indicator" contains thymol blue, methyl red, bromothymol blue, thymol blue, and phenolphthalein. Thymol has a refractive index of 1.5208[4] and an experimental dissociation exponent (pKa) of 10.59±0.10. The antibacterial properties of thymol, a major part of thyme essential oil, as well as other constituents, are in part associated with their lipophilic character, leading to accumulation in bacterial membranes and subsequent membrane-associated events, such as energy depletion. Eugenol, a phenol found in oil of cloves, is a particularly important compound on account of its use in the manufacture of artificial vanillin, which has replaced the natural substance obtained from Vanilla pods to a considerable extent. 2. Application: Thymol Blue is a useful pH indicator compound. LobaChemie Pvt. Disclaimer: Loba Chemie Pvt. U.S. Environmental Protection Agency (EPA), "A Brief History of Thyme - Hungry History", "Sur la composition de l'huile essentielle de thym", "Ueber eine Synthese von Thymol aus Cuminol", "Biological Activities of Three Essential Oils of the Lamiaceae Family", "Thymol and carvacrol: biotransformation and antifungal activity against the plant pathogenic fungi Colletotrichum acutatum and Botryodiplodia theobromae", "Composition and Antimicrobial Activity of, "The Essential Oil of Monarda didyma L. (Lamiaceae) Exerts Phytotoxic Activity In Vitro against Various Weed Seeds", https://en.wikipedia.org/w/index.php?title=Thymol&oldid=996201416, GABAA receptor positive allosteric modulators, Articles with incomplete citations from August 2017, Short description is different from Wikidata, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from December 2019, Creative Commons Attribution-ShareAlike License, 49 to 51 °C (120 to 124 °F; 322 to 324 K), Iridoid glycosides (iridoids bound to a sugar), Terpene synthase enzymes (many), having in common a, This page was last edited on 25 December 2020, at 03:05. Quotes. BRN 0368036. Grade AR. In: Natural Antimicrobials from Plants. is liable to change without any intimation or notice. Thymol blue: Yellow: 8.0 - 9.6: Blue: Phenolphthalein: Colorless: 8.2 - 10.0: Pink: Thymolphthalein: Colorless: 9.4 - 10.6: Blue: Alizarin yellow R: Yellow: 10.1 - 12.0: Red: There is a separate file for this, and it can also be accessed from the Chemical Handbook menu. Account; Sign in; Account. GET A PRICE/QUOTE ASK A QUESTION Send Inquiry. Quick Order Form. Saved Carts. [15] Thymol was first synthesized by the Swedish chemist Oskar Widman in 1882. [11] In this period, women also often gave knights and warriors gifts that included thyme leaves, as it was believed to bring courage to the bearer. Gould G.W., editor. Shelf Life 60 Months. [18] Thymol demonstrates in vitro post-antibacterial effect against the test strains E. coli and P. aeruginosa (gram negative), and Staphylococcus aureus and B. cereus (gram positive). thymol blue (second change) yellow: blue: 8.0 - 9.6: 8.9: phenolphthalein: colorless: magenta: 8.2 -10.0: 9.4: The "acid" and "base" colors are relative. 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide. The estimation of the phenol constituent is a characteristic test for the oils of … [14] In 1853, the French chemist Alexandre Lallemand named thymol and determined its empirical formula. [12], The bee balms Monarda fistulosa and Monarda didyma, North American wildflowers, are natural sources of thymol. NSC11238. MSDS Name: Thymol Blue Catalog Numbers: T416-5 Synonyms: Thymolsulfonephthalein Company Identification: Fisher Scientific 1 Reagent Lane Fair Lawn, NJ 07410 For information, call: 201-796-7100 Emergency Number: 201-796-7100 For CHEMTREC assistance, call: 800-424-9300 For International CHEMTREC assistance, call: 703-527-3887 Section 2 - Composition, Information on Ingredients CAS# … Ltd. All rights reserved. Thymol Blue, ACS reagent. Get the latest public health information from CDC: https://www.coronavirus.gov. [19] This antibacterial activity is caused by inhibiting growth and lactate production, and by decreasing cellular glucose uptake. What is happening here is that thymol blue acts as a diprotic acid, having three forms each with a different colour. Coa, Data Sheet and other organic solvents when it is also used as a diprotic acid having. 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