成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
+1 (818) 612-2111
Inquriy
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

RFQ
skype
MY Account
Top
Postion:Product Catalog >Flavors and fragrances>Synthetic fragrances>Oxygen-containing heterocyclic compounds>Lactones>Dihydrocoumarin
Dihydrocoumarin
  • Dihydrocoumarin
  • Dihydrocoumarin
  • Dihydrocoumarin
  • Dihydrocoumarin
  • Dihydrocoumarin

Dihydrocoumarin NEW

Price Get Latest Price
Package 25KG
Min. Order: 1KG
Supply Ability: 50000KG/month
Update Time: 2023-08-26

Product Details

Product Name: Dihydrocoumarin CAS No.: 119-84-6
EC-No.: 204-354-9 Min. Order: 1KG
Purity: 99% Supply Ability: 50000KG/month
Release date: 2023/08/26

CAS:119-84-6
MF:C9H8O2
MW:148.16
EINECS:204-354-9
Product Categories:Coumarins
Mol File:119-84-6.mol
Article illustration

Dihydrocoumarin Chemical Properties
Melting point 24-25 °C (lit.)
Boiling point 272 °C (lit.)
density 1.169 g/mL at 25 °C (lit.)
vapor pressure 13.6kPa at 20℃
FEMA 2381 | DIHYDROCOUMARIN
refractive index n20/D 1.556(lit.)
Fp >230 °F
storage temp. Sealed in dry,2-8°C
solubility Chloroform, Methanol (Sparingly)
form Solid
Specific Gravity1.169
color Colourless to Off-White
Odorat 10.00 % in dipropylene glycol. sweet tonka coumarinic coconut herbal cinnamon balsamic
Odor Typetonka
Water Solubility insoluble
JECFA Number1171
BRN 4584
LogP1.82 at 25℃
CAS DataBase Reference119-84-6(CAS DataBase Reference)
NIST Chemistry Reference2H-1-Benzopyran-2-one, 3,4-dihydro-(119-84-6)
EPA Substance Registry System3,4-Dihydrocoumarin (119-84-6)

Dihydrocoumarin Usage And Synthesis
DescriptionWith a sweet, creamy, and herbal, fragrance, with a slightly burnt taste, dihydrocoumarin (DHC) is used as a flavoring agent in food, tobacco, soap, and perfume, etc. Its exotic flavor is well suited for caramel, nuts, dairy, vanilla, tropical fruit, and alcohol. It is a eukaryotic metabolite found in tonka beans grown in northern South America, from which it was isolated as early as the 1820s, as well as sweet clover. Other uses include as an organic solvent and pharmaceutical intermediary. It has been shown to influence the epigenetic process of human cells in vitro.
Sourceshttp://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16151
http://www.bojensen.net/EssentialOilsEng/EssentialOils29/EssentialOils29.htm#Tonka
https://books.google.kg/books?id=pUEqBgAAQBAJ&pg=PA427&lpg=PA427&dq=dihydrocoumarin+uses&source=bl&ots=HTZrffvsXu&sig=GPGKqrMRXQaRJ-qgHk7aULeBmGw&hl=en&sa=X&redir_esc=y#v=onepage&q=dihydrocoumarin%20uses&f=false
https://products.symrise.com/aroma-molecules/product-search/dihydrocoumarin/action/pdf/
http://www.lookchem.com/3-4-Dihydrocoumarin/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1315280/
Chemical PropertiesDihydrocoumarin forms colorless crystals (mp 24°C) with a sweet, herbal odor. Dihydrocoumarin is prepared by hydrogenation of coumarin, for example, in the presence of a Raney nickel catalyst. Another process employs the vapor-phase dehydrogenation of hexahydrocoumarin in the presence of Pd or Pt-Al2O3 catalysts . Hexahydrocoumarin is prepared by cyanoethylation of cyclohexanone and hydrolysis of the nitrile group, followed by ring closure to the lactone.
Chemical PropertiesDihydrocoumarin has an odor similar to coumarin at room temperature or reminiscent of nitrobenzene at higher temperature. It has a burning taste.
OccurrenceReported found in Melilotus officinalis, from which it may be extracted by water distillation.
UsesHydrocoumarin can be used as a reagent to prepare splitomicin analogs as inhibitors of Sir2.
UsesDihydrocoumarin may be used as an analytical reference standard for the determination of the analyte in guaco extracts and pharmaceutical preparations, and various plant extracts by chromatography-based techniques and capillary electrophoresis.
DefinitionChEBI: A chromanone that is the 3,4-dihydro derivative of coumarin.
PreparationDihydrocoumarin is synthesized by reduction of coumarin under pressure in the presence of nickel at 160 to 200°C or in the presence of Pd-BaSO4 in alcoholic solution.
Synthesis Reference(s)Tetrahedron Letters, 37, p. 4555, 1996 DOI: 10.1016/0040-4039(96)00902-1
General DescriptionWhite to pale yellow clear oily liquid with a sweet odor. Solidifies around room temperature.
Air & Water ReactionsSolutions of the chemical in water are stable for less than two hours. Insoluble in water.
Reactivity ProfileHydrocoumarin is a lactone (behaves as an ester). Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Hydrocoumarin may hydrolyze under alkaline or acidic conditions.
Fire HazardHydrocoumarin is combustible.
Biochem/physiol ActionsTaste at 10 ppm

Packing &shipping&Payment

Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
Quantity(Kilograms)1 - 10000>10000
Est. Time(days)5To be negotiated

Article illustration

Article illustrationCompany information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.

Article illustrationAdvantage
In stock

Article illustration





Company Profile Introduction

-

You may like

Recommended supplier

Product name Price   Suppliers Update time
$10.00/1KG
VIP6Y
Hebei Weibang Biotechnology Co., Ltd
2024-12-03
$29.00/1mL
VIP5Y
TargetMol Chemicals Inc.
2024-11-19
$0.00/1KG
VIP3Y
Hebei Weibang Biotechnology Co., Ltd
2024-11-01
$5.00/1KG
VIP4Y
Hebei Chuanghai Biotechnology Co,.LTD
2024-08-21
$30.00/1kg
VIP3Y
Hebei Fengjia New Material Co., Ltd
2024-08-13
$0.00/25kg
VIP1Y
Hebei Mojin Biotechnology Co.,Ltd
2024-07-30
$0.00/1kg
VIP1Y
JINING XINHE CHEMICAL CO., LTD
2024-07-22
$10.00/1kg
VIP1Y
Shandong Deshang Chemical Co., Ltd.
2024-06-07
$0.00/1kg
VIP2Y
Hebei Kingfiner Technology Development Co.Ltd
2024-05-11
$100.00/1kg
VIP1Y
Hebei Zhuanglai Chemical Trading Co.,Ltd
2024-05-06
  • Since: 2017-12-08
  • Address: Building A, Enjoy city, Zhongshan East Road, Shijiazhuang city, Hebei province
INQUIRY
xing
13288715578
sales@hbmojin.com