Fraxetin;Fraxetol;7,8-Dihydroxy-6-methoxycoumarin No CAS: 574-84-5
Hōʻuluʻulu manaʻo
Alias:Qinpi Pavilion;ʻO Fraxinus lactone
inoa Pelekania:fraxetin;fraxetol
No nā pūhui coumarin.He aniani ʻeleʻele (ethanol), wahi heheʻe 228 ℃, huli melemele ma 150 ℃, a ʻeleʻele i ka helu heheʻe.ʻO ia ka hydrolyzate o aesculin, hiki ke hoʻoheheʻe ʻia i ka ethanol a me ka waika hydrochloric aqueous solution, hiki ke hoʻoheheʻe ʻia i ka wai paila a hiki ʻole ke hoʻoheheʻe ʻia i ka ether.
No Fraxinus brngeana DC Bark, nā lau o ka pā F. floribunda, etc.
Loaʻa iā ia ka hopena o ka bacilli anti dysentery a ua hoʻohana ʻia i ka lāʻau lapaʻau no ka mālama ʻana i ka maʻi maʻi maʻi bacillary i nā keiki.
Hāʻawi nā huahana i ka fraxetin: Qinpi Pavilion
Nā ʻāpana huahana:No CAS: 574-84-5
Maʻiʻo kūpono (%):98.5%
Noi:hoʻoholo maʻiʻo, reagent pharmacological, etc
Hōʻike huahana:10mg, 20mg, 1g
Hoʻolako fraxetin:ʻO Qinpiting, i kapa ʻia ʻo Fraxinus lactone
inoa Pelekania:fraxetin;Fraxetol； Fraxexin； Coumarin, 7,8-dihydroxy-6-methoxy-
ʻAʻohe CAS:574-84-5
Maʻemaʻe maoli unuhi, ma hope o ka NMR kūkulu hōʻoia ʻana a me ka HPLC maʻemaʻe ʻike, ʻoi aku ka ʻike ma mua o 98.5%.
inoa Pākē:7,8-dihydroxy-6-methoxycoumarin English Name: 7,8-dihydroxy-6-methoxycoumarin English alias: EINECS No.: 209-376-2 molecular formula: c10h8o5 molecular weight: 208.1675inchi: Inchi = 1 / c10h8o5 / c10h8o5 -14-6-4-5-2-3-7 (11) 15-10 (5) 9 (13) 8 (6) 12 / h2-4,12-13h, 1h3 mānoanoa: 1.508g/cm wahi paila : 472 ° C ma 760 mmHg kiko uila: 196 ° C
Na waiwai kino o Fraxetin
Māmā: 1.5 ± 0.1 g / cm3
Puni paila: 472.0 ± 45.0 ° C ma 760 mmHg
Lae hehee: 230-232 ° C
Ke Kumu Molekala: c10h8o5
Kaumaha Molekala: 208.167
Lahi Uila: 196.0 ± 22.2 ° C
Nuipa pololei: 208.037170
PSA:79.90000
LogP:0.59
Ke ʻano: papa aniani melemele māmā
Paʻa: ʻeleʻele melemele ʻeleʻele aniani, ʻeleʻele ka waihoʻoluʻu i ka wā i wela ai, a lilo ʻo Brown kokoke i ka helu heheʻe.Hiki ke hoʻoheheʻe ʻia i loko o ka wai etera a me ka wai e hoʻolapalapa ʻia ʻO ke aniani ʻulaʻula melemele māmā ʻeleʻele ke hoʻomehana ʻia, a lilo i ʻeleʻele kokoke i ka helu heheʻe.Hiki ke hoʻoheheʻe ʻia i ka ether a me ka wai e hoʻolapalapa ai, ʻike ʻia ka uliuli-'ōmaʻomaʻo i mua o ka ferric chloride.Paʻa ma lalo o ka mahana maʻamau a me ke kaomi.
Kemika helu
1. Waiwai kuhikuhi no ka helu ʻana i nā ʻāpana hydrophobic (xlogp): 1.2
2. Ka helu o nā mea hāʻawi paʻa hydrogen: 2
3. Ka helu o nā mea hoʻopaʻa paʻa hydrogen: 5
4. Ka helu o nā mea paʻa kemika hiki ke hoʻololi: 1
5. Ka helu o nā tautomer: 16
6. Topological molecular polarity ili ili 76
7. Ka helu o nā mana kaumaha: 15
8. Ka uku o ka ʻili: 0
9. Paʻakikī: 288
10. Ka helu o nā ʻātoma isotopic: 0
11. E hoʻoholo i ka heluna o nā stereocenter atomika: 0
12. Ka helu o nā stereocenter atomika maopopo ʻole: 0
13. E hoʻoholo i ka heluna o nā stereocenters paʻa kemika: 0
14. Ka helu o nā stereocenters paʻa kemika paʻa ʻole: 0
15. Ka helu o nā pūʻulu pili covalent: 1
