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

β,β-Carotin-4-on

ECHINENONE Struktur
432-68-8
CAS-Nr.
432-68-8
Bezeichnung:
β,β-Carotin-4-on
Englisch Name:
ECHINENONE
Synonyma:
ECHINENONE;Einecs 207-083-4;β,β-Caroten-4-one;?,?-caroten-4-one;all-trans-Echinenone;beta,beta-caroten-4-one;Echinenone (In Solution);9-cis-β,β-Carotene-4-one;9'-cis-β,β-Carotene-4-one;Echinenone (Technical Grade)
CBNumber:
CB4423339
Summenformel:
C40H54O
Molgewicht:
550.86
MOL-Datei:
432-68-8.mol

β,β-Carotin-4-on Eigenschaften

Schmelzpunkt:
178-180°
Siedepunkt:
685.3±25.0 °C(Predicted)
Dichte
0.972±0.06 g/cm3(Predicted)
storage temp. 
-20°C
L?slichkeit
Chloroform (Slightly), Diethyl Ether (Slightly), Methanol (Slightly)
Aggregatzustand
Solid
Farbe
Dark Red to Very Dark Red
maximale Wellenl?nge (λmax)
λ: 459 nm±5 nm Amax
BRN 
2030114
Stabilit?t:
Light Sensitive, Temperature Sensitive

Sicherheit

WGK Germany  3

β,β-Carotin-4-on Chemische Eigenschaften,Einsatz,Produktion Methoden

Verwenden

Echinenone may be used as an external standard for the extraction of carotenoid from plasma samples. It may also been used as an internal standard, added to samples for extraction and quantification.

Definition

ChEBI: A carotenone that is beta-carotene in which the 4 position has undergone formal oxidation to afford the corresponding ketone. Isolated as orange-red crystals, it is widely distributed in marine invertebrates.

Allgemeine Beschreibung

Echinenone is a carotenoid with a conjugated carbonyl group. Echinenone (4-keto-β-carotene) is a monoketo compound, is an intermediate between β-carotene and canthaxanthin in animals. It is one of the major carotenoids of Anabaena sp., and also present in Micrococcus roseus. It is located in the thylakoid membrane of Anabaena. The conversion of β-carotene to echinenone is catalysed by CrtO, a β-carotene ketolase.

l?uterung methode

Purify β,β-caroten-4-one by chromatography on partially deactivated alumina or magnesia, or by using a thin layer plate of silica gel G with 4:1 cyclohexane/diethyl ether as the developing solvent. Recrystallise it from *C6H6/MeOH. Store it in the dark at -20o. The oxime crystallises from *C6H6 with m 208o. [Beilstein 7 III 2858, 7 IV 1881.]

β,β-Carotin-4-on Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


β,β-Carotin-4-on Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 19)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Shaanxi Dideu Medichem Co. Ltd
+86-29-81139210 +86-18192627656
1059@dideu.com China 3003 58
Sigma-Aldrich 021-61415566 800-8193336
orderCN@merckgroup.com China 51456 80
Shanghai Huicheng Biological Technology Co., Ltd. 021-021-60498804 18930193824
sales@e-biochem.com China 295 58
cjbscvictory 13348960310 13348960310
3003867561@qq.com China 9911 58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 17691182729 18161915376
1046@dideu.com China 10001 58
JiangSu Star Science Co.,Ltd 400-400-605-7200-7200 15335295587
sales037@b2star.com China 3761 58
Hebei ruqi technology co., ltd 176-03256889 17603256889
1123722730@qq.com China 3376 58
Shanghai Saikerui Biotechnology Co. , Ltd. 021-58000709 15900491054
info@scrbio.com China 10329 58
Shanghai Beiwanta Biotechnology Co., Ltd. 021-67187366 19901745723
info@bwtlab.com China 9289 58
Nanjing Shizhou Biology Technology Co.,Ltd 025-85560043 15850508050
rose.shi@synzest.com China 6210 58

432-68-8(β,β-Carotin-4-on)Verwandte Suche:


  • beta,beta-caroten-4-one
  • 9'-cis-β,β-Carotene-4-one
  • 9-cis-β,β-Carotene-4-one
  • all-trans-Echinenone
  • Einecs 207-083-4
  • ECHINENONE
  • 2,4,4-trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-2-en-1-one
  • Echinenone (Technical Grade)
  • ?,?-caroten-4-one
  • β,β-Caroten-4-one
  • Echinenone (In Solution)
  • 432-68-8
Copyright 2019 ? ChemicalBook. All rights reserved