Benzofuran
|
|
Benzofuran Eigenschaften
- Schmelzpunkt:
- <-18℃
- Siedepunkt:
- 173-175 °C(lit.)
- Dichte
- 1.095 g/mL at 20 °C(lit.)
- Brechungsindex
- n
20/D 1.567
- Flammpunkt:
- 133 °F
- storage temp.
- 2-8°C
- L?slichkeit
- soluble in Dichloromethane
- pka
- 33.2
- Aggregatzustand
- Crystalline Powder or Crystals
- Farbe
- Yellow to green to yellow-brown
- Wasserl?slichkeit
- insoluble
- Merck
- 14,1088
- BRN
- 107704
- LogP
- 2.670
- CAS Datenbank
- 271-89-6(CAS DataBase Reference)
- IARC
- 2B (Vol. 63) 1995
- NIST chemische Informationen
- Benzofuran(271-89-6)
- EPA chemische Informationen
- Benzofuran (271-89-6)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher | Xn,Xi | ||
---|---|---|---|
R-S?tze: | 40-52-10 | ||
S-S?tze: | 36/37-16 | ||
RIDADR | UN 1993 3/PG 3 | ||
WGK Germany | 3 | ||
RTECS-Nr. | DF6423800 | ||
F | 10-23 | ||
Hazard Note | Irritant | ||
TSCA | Yes | ||
HazardClass | 3 | ||
PackingGroup | III | ||
HS Code | 29329900 | ||
Giftige Stoffe Daten | 271-89-6(Hazardous Substances Data) | ||
Toxizit?t | Isolated from coal oil and used in the manufacture of coumarone-indene resin. This resin is used in paints, glue, etc. and is allowed in food packaging. Little is known about the toxicity of benzofuran to humans but acute toxicity in experimental animals involves liver and kidney failure. Chronic toxicity to animals involves damage to the liver, kidneys, lungs, and stomach. Lifetime administration (oral administration) caused cancer in both rats and mice. |
Bildanzeige (GHS) |
![]() ![]() |
|||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alarmwort | Warnung | |||||||||||||||||||||
Gefahrenhinweise |
|
|||||||||||||||||||||
Sicherheit |
|
Benzofuran Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE ?LIGE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH.CHEMISCHE GEFAHREN
Langsame Polymerisation bei Raumtemperatur, schneller jedoch unter Einfluss von Hitze und unter Einfluss von sauren Katalysatoren.ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation des Aerosols.INHALATIONSGEFAHREN
Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitssch?dliche Konzentration in der Luft beim Verdampfen bei 20°C erreicht wird.WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
M?glich sind Auswirkungen auf Nierenund Leber. M?glicherweise krebserzeugend für den Menschen.LECKAGE
Zündquellen entfernen. Ausgelaufene Flüssigkeit in abgedeckten Beh?ltern sammeln. NICHT in die Kanalisation spülen. NICHT in die Umwelt gelangen lassen.R-S?tze Betriebsanweisung:
R40:Verdacht auf krebserzeugende Wirkung.R52:Sch?dlich für Wasserorganismen.
R10:Entzündlich.
S-S?tze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
2,3-Benzofuran is a colorless, sweet-smelling, oily liquid made by processing coal into coal oil. It may also be formed during other uses of coal or oil. 2,3-Benzofuran is not used for any commercial purposes, but the part of the coal oil that contains 2,3-benzofuran is made into a plastic called coumarone-indene resin. This resin resists corrosion and is used to make paints and varnishes. The resin also provides water resistance and is used in coatings on paper products and fabrics. It is used as an adhesive in food containers and some asphalt fl oor tiles. The resin has been approved for use in food packages and as a coating on citrus fruits. We do not know how often the resin is used or whether any 2,3-benzofuran in the coating or packaging gets into the food. 2,3-Benzofuran may enter the air, water, and soil during its manufacture, use, or storage at hazardous waste sites. Breathing contaminated air or touching the chemical in the workplace is the source of human exposure.Verwenden
manufacture of coumarone-indene resins.Definition
A bicyclic ring compound derived from coal tar naphtha, the parent substance of coumarone-indene resins.Allgemeine Beschreibung
Clear oily yellow liquid with an aromatic odor.Air & Water Reaktionen
Highly flammable. May be sensitive to prolonged exposure to air. Very slightly water soluble.Reaktivit?t anzeigen
Benzofuran slowly polymerizes on standing. Benzofuran may be sensitive to prolonged exposure to air. Benzofuran is polymerized by H2SO4.Hazard
Possible carcinogen.Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition Benzofuran emits acrid and irritating smoke and fumes.Brandgefahr
Benzofuran is combustible.Carcinogenicity
Benzofuran was not mutagenic in bacterial assays but did cause chromosomal aberrations and sister chromatid exchanges in cultured rodent cells.l?uterung methode
Benzofuran is steam distilled, dissolved in Et2O, washed with 5% aqueous NaOH, saturated NaCl, dried (Na2SO4), evaporated and redistilled. UV: max 245, 275, 282nm (log 4.08, 3.45, 3.48). The picrate has m 102-103o. [Burgstahler & Worden Org Synth Coll Vol V 251 1973, NMR: Black & Heffernan Aust J Chem 18 353 1965, Beilstein 17/2 V 3.]Benzofuran Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Natriumacetat
Inden
Essigs?ureanhydrid
1-Benzopyran-2-on
heavy benzol
Sodium acetate trihydrate
Phenoxyessigsure
Destillate (Kohlenteer)
Salicylaldehyd
Naphtha
COUMARONE RESIN
Essigsure
(E)-4-(2-hydroxybenzylidene)-3-methylisoxazol-5(4H)-one
Phenol, 2-(2,2-dibromoethenyl)-
4-METHYLDIBENZOTHIOPHENE
Downstream Produkte
Befunolol
Benzofuran-2-boronic acid
Inden
2,3-Dihydro-2,2-dimethylbenzofuran-7-ol
3-(Benzofuran-2-yl)-3-oxopropanenitrile ,97%
Benfuracarb
Carbofuran (ISO)
1-(1-BENZOFURAN-2-YL)-2-BROMOETHAN-1-ONE
Citalopram
3-BROMO-1-BENZOFURAN
Benzofuran-2-ylmethylketon
2-Hydroxystyrene
2,3-Dihydrobenzofuran
2-ETHYNYL-PHENOL
Benzofuran Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 315)Lieferanten
Firmenname | Telefon | Land | Produktkatalog | Edge Rate | |
---|---|---|---|---|---|
Springchem New Material Technology Co.,Limited | +86-021-62885108 +8613917661608 |
info@spring-chem.com | China | 2068 | 57 |
Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 |
sales@capot.com | China | 29730 | 60 |
Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 |
sales01@cooperate-pharm.com | CHINA | 1803 | 55 |
Hi-Tech Chemistry Corp | 0519-86626038 |
yuhh@hitechem.com | CHINA | 810 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21629 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29860 | 58 |
Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 |
sales@amoychem.com | China | 6383 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22963 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39894 | 58 |
Alchem Pharmtech,Inc. | 8485655694 |
sales@alchempharmtech.com | United States | 63687 | 58 |
271-89-6(Benzofuran)Verwandte Suche:
5-Bromo-1-benzofuran
1-(((5-Nitro-2-furanyl)methylen)-amino)-2,4-imidazolidindion
FURFURYL ALCOHOL RESIN
Furazolidon
2-Benzothienylboronic acid
Tetrahydrofuran
Dibenzofuran
2,3-Dihydrobenzofuran
Furan
2-Butylbenzofuran
Carbofuran (ISO)
Trioxysalen
Benzofuran-2-carboxaldehyd
Benzofuran-2-carbonsure
Xanthotoxin
4-Methoxy-7-methylfuro[3,2-g]chromen-5-on
4-Methoxy-7H-furo[3,2-g][1]benzopyran-7-on
4,9-Dimethoxy-7-methyl-5H-furo-(3,2-g)(1)benzo-pyran-5-on
- 2,3-Benzofuran, GC 99%
- Benzo[b]furan, 99+%
- Benzobüfuran, 99+%
- 2,3-Benzofuran ,97%
- Benzo[b]furan 98%
- 2,3-Benzofuran, 99.5%
- 2,3-benzofuranyl
- 2,3-Benzofuran, 99.5% 10ML
- BENZOFURAN
- Benzo[b]furan, (2,3-Benzofuran
- 2,3- Benzofuran (Coumarone)
- 2,3-Benzofuran, 99+%
- Cumaron
- 2,3-BENZOBFURAN
- BenzoÄbÜfuran,99+%
- Amiodarone intermediate D
- 2,3-BENZOFURANE
- 2,3-Benzofuran, 99.50%
- Benzofuran 98%
- COUMARONE 2,3-BENZOFURAN
- Benzofuran (1Mg/ML In DichloroMethane)
- 2,3-Benzofuran 99%
- 2,3-Benzofuran, 99.5%, 99.5%
- Coumarone Cumarone
- 2,3-Benzofurfuran
- Coumarone, 1-Benzofuran
- Benzofuran analogue
- Benzo[b]furan for synthesis
- 1-oxidene
- 1-Oxindene
- NCI-C56166
- Yellowcoumarone
- Benzofurfuran
- coumaron
- 2,3-Benzofuran >
- clear coumarone
- 7-(2-bromoethyl)-2,3-dihydro Benzofuran
- Benzofuran Cas NO. 271-89-6
- Benzo[b]furan, 97+%,
- 1-BENZOFURAN
- Coumarone
- CUMARONE
- BENZO[B]FURAN
- BENZOFURANE
- 2,3-BENZOFURAN
- Azelastine Impurity 8
- 2,3-Benzofuran, ≥ 99.0%
- 2,3-Benzofuran Solution in Methanol
- Benzofuran in n-hexane
- C20591500 Benzo[b]furan
- Zavegepant Impurity 4
- 271-89-6
- 271-89-61
- C8H601
- C8H6O
- Heterocyclic Building Blocks
- Building Blocks
- Benzofurans