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Awọn ọja

Kaempferide Cas No.. 491-54-3 ifihan Aworan
  • Kaempferide Cas No.. 491-54-3
  • Kaempferide Cas No.. 491-54-3

Kaempferide Cas No.. 491-54-3

Apejuwe kukuru:

Kaempferol ni a tun mọ ni "camphenyl oti".Flavonoids jẹ ọkan ninu awọn oti.O ti rii lati tii ni ọdun 1937. Pupọ julọ awọn glycosides ni a ya sọtọ ni ọdun 1953.

Kaempferol ninu tii jẹ idapọpọ pupọ julọ pẹlu glucose, rhamnose ati galactose lati ṣe awọn glycosides, ati pe awọn ipinlẹ ọfẹ diẹ wa.Akoonu naa jẹ 0.1% ~ 0.4% ti iwuwo gbigbẹ tii, ati tii orisun omi ga ju tii ooru lọ.Awọn lọtọ kaempferol glycosides ni pato pẹlu kaempferol-3-rhamnoside, kaempferol-3-rhamnoside, kaempferol-3-glucoside, kaempferol triglucoside, ati bẹbẹ lọ Pupọ ninu wọn jẹ awọn kirisita ofeefee, eyiti o le tuka ninu omi, methanol ati ethanol.Wọn ṣe ipa kan ninu dida awọ bimo tii alawọ ewe.Ninu ilana ṣiṣe tii, kaempferol glycoside ti wa ni apakan hydrolyzed labẹ iṣe ti ooru ati enzymu lati yọọda sinu kaempferol ati awọn suga oriṣiriṣi lati dinku diẹ ninu kikoro.


Alaye ọja

ọja Tags

Alaye pataki

Cas No: 491-54-3

iwuwo: 1.5 ± 0.1 g / cm3

Ojutu farabale: 543.8 ± 50.0 ° C ni 760 mmHg

Oju Iyọ: 156-157 º C (tan.)

Fọọmu Molikula: C16H12O6

Iwọn Molikula: 300.263

Ojuami Filasi: 207.1 ± 23.6 ° C

Gangan Ibi: 300.063385

PSA: 100.13000, logP: 2.74

Ipa oru: 0.0 ± 1.5 mmHg ni 25 ° C

Refractive Atọka: 1.710

Awọn ipo ipamọ: 2-8 ° C

Ilana Molikula

Atọka itọka molar:76.232

Iwọn iwọn: (cm3 / mol):195.13

Iwọn isotonic kan pato (90.2k):578.04

Aifokanbale oju (dyne/cm):77.05

Iṣaṣepo (10-24cm3):30.22

Kemistri Iṣiro

1. Iye itọkasi fun iṣiro paramita hydrophobic (xlopp): Kò

2. Nọmba ti awọn oluranlọwọ iwe adehun hydrogen: 3

3. Nọmba awọn olugba hydrogen bond: 6

4. Nọmba awọn ifunmọ kemikali rotatable: 2

5. Nọmba ti tautomers: 24

6. Topological molikula polarity dada agbegbe 96.2

7. Nọmba awọn ọta eru: 22

8. Idiyele oju: 0

9. Idiju: 465

10. Nọmba awọn ọta isotopic: 0

11. Pinnu nọmba awọn stereocenters atomiki: 0

12. Nọmba awọn stereocenter atomiki ti ko ni idaniloju: 0

13. Ṣe ipinnu nọmba awọn stereocenters ti o ni asopọ kemikali: 0

14. Nọmba ti awọn stereocenters kemikali indeterminate: 0

15. Nọmba ti covalent mnu sipo: 1

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