2,5-Dimethylthiophene

2,5-Dimethylthiophene Basic information
Product Name:2,5-Dimethylthiophene
Synonyms:2,5-DIMETHYLTHIOPHENE;2,5-DIMETHYLTHIOPHENE, 98.5%;2 5-DIMETHYLTHIOPHENE 98+%;2,5-DIMETHYTHIOPHENE;2,5-Dimethylthiophene, 98.50%;2,5-Thioxene;2,5-DiMethylthiophene, 98.5% 25ML;2,5-Dimethylthiophene USP/EP/BP
CAS:638-02-8
MF:C6H8S
MW:112.19
EINECS:211-313-9
Product Categories:Flavors and Fragrances;Thiophene&Benzothiophene;Heterocyclic Compounds;Thiophens;Heterocyclic Building Blocks;Thiophenes;Alphabetical Listings;C-D;thiophene Flavor;Building Blocks
Mol File:638-02-8.mol
2,5-Dimethylthiophene Structure
2,5-Dimethylthiophene Chemical Properties
Melting point -63°C
Boiling point 134 °C/740 mmHg (lit.)
density 0.985 g/mL at 25 °C (lit.)
refractive index n20/D 1.512(lit.)
Fp 75 °F
storage temp. Keep in dark place,Inert atmosphere,Room temperature
form Liquid
Specific Gravity0.985
color Clear colorless to slightly yellow
Odorat 0.10 % in propylene glycol. nutty sulfury
Odor Typesulfurous
Water Solubility Insoluble in water. Soluble in alcohol, ether and benzene.
BRN 106450
InChIKeyGWQOOADXMVQEFT-UHFFFAOYSA-N
LogP2.523 (est)
CAS DataBase Reference638-02-8(CAS DataBase Reference)
NIST Chemistry ReferenceThiophene, 2,5-dimethyl-(638-02-8)
EPA Substance Registry System2,5-Dimethylthiophene (638-02-8)
Safety Information
Hazard Codes Xn,F,Xi
Risk Statements 10-37-20/22
Safety Statements 23-24/25-16-36-33-29-7/9-3/7/9
RIDADR UN 1993 3/PG 3
WGK Germany 3
HazardClass 3
PackingGroup II
HS Code 29349990
MSDS Information
ProviderLanguage
2,5-DimethylthiopheneEnglish
SigmaAldrichEnglish
ACROSEnglish
ALFAEnglish
2,5-Dimethylthiophene Usage And Synthesis
Chemical Propertiesclear colorless to slightly yellow liquid
Uses2,5-Dimethylthiophene is used as an intermediate in organic synthesis.
DefinitionChEBI: 2,5-Dimethylthiophene is a member of thiophenes.
Synthesis Reference(s)The Journal of Organic Chemistry, 20, p. 1363, 1955 DOI: 10.1021/jo01127a012
General Description2,5-Dimethylthiophene is a volatile flavoring compound that has been identified in the essential oil of onion. It is reported to be one of the sulfur-containing compounds formed via Maillard reaction/Strecker degradation of cysteine with furaneol.
2,5-Dimethylthiophene Preparation Products And Raw materials
Raw materialsCarbon tetrachloride–>Phosphorus pentasulfide–>2,5-Hexanedione
Preparation ProductsThiophene(SIV) (9CI)–>5-Methylthiophene-2-carboxaldehyde–>2,5-Dimethylthiophene-3-boronic acid–>2-Methylthiophene–>1-(2,5-dimethylthiophen-3-yl)-2-methylpropan-1-one–>3-[2-(2,5-dimethylthiophen-3-yl)cyclopenten-1-yl]-2,5-dimethylthiophene–>CHEMBRDG-BB 4012561–>2,5-Dimethyl-thiophene-3,4-dicarbonitrile

دیدگاهی بنویسید

نشانی ایمیل شما منتشر نخواهد شد. بخش‌های موردنیاز علامت‌گذاری شده‌اند *

ترجمه علمی مطالب این صفحه

شما می توانید مطالب این صفحه را به فارسی ترجمه کنید

تبادل مواد اولیه

آموزش

مجله مهندسی مواد

دسته بندی های مواد در یک نگاه