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koumine

koumine
koumine structure
CAS No.
1358-76-5
Chemical Name:
koumine
Synonyms
koumine;(3R,7alpha,20alpha)-1,2,18,19-Tetradehydro-3,17-epoxy-7,20(2H,19H)cyclovobasan;7,20(2H,19H)-Cyclovobasan, 1,2,18,19-tetradehydro-3,17-epoxy-, (3R,7alpha,20alpha)-;6,4-(Epoxymethano)-3,11b-methano-11bH-pyrido[4,3-c]carbazole, 11c-ethenyl-1,2,3,4,4a,5,6,11c-octahydro-2-methyl-, (3S,4S,4aR,6R,11bS,11cS)-
CBNumber:
CB31480541
Molecular Formula:
C20H22N2O
Formula Weight:
306.4
MOL File:
1358-76-5.mol

koumine Properties

Melting point:
168℃
Boiling point:
436.5±45.0 °C(Predicted)
Density 
1.42
storage temp. 
Sealed in dry,2-8°C
pka
8.67±0.40(Predicted)
CAS DataBase Reference
1358-76-5

koumine Chemical Properties,Uses,Production

Description

The Chinese drug 'Kou-wen', said to be derived from Gelsemium elegans Benth., is stated to contain this alkaloid which forms rhombic prisms from Me2 CO. It has [α]23D - 265° (EtOH) and forms a crystalline hydrochloride, m.p. 255°C (dec.) and a hydrobromide, m.p. 269°C (dec.).

Occurrence

Koumine is an alkaloid isolated from Gelsemium elegans Benth.

References

Chou, Pak, Hou., Chin. 1. Physiol., 5, 345 (1931)
Chou, Wang, Chen., ibid, 8,40 (1934)
Chi, Kao, Huang., 1. Amer. Chem. Soc., 60, 1723 (1938)

koumine Preparation Products And Raw materials

Raw materials

Preparation Products


koumine Suppliers

Global( 125)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
Chengdu Greenpure Biopharma CO.,Ltd
18283602253
jancyzheng@gcgreenpure.com CHINA 1257 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
Chengdu GLP biotechnology Co Ltd
13350802083 028-87075086
scglp@glp-china.com CHINA 1824 58
Chengdu Biopurify Phytochemicals Ltd.
18482058008 18080483897
maggie@biopurify.com CHINA 2712 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Chongqing Chemdad Co.,Ltd
+86-19923101450
sales@chemdad.com CHINA 4000 58
Shaanxi Pioneer Biotech Co., Ltd .
86-13259417953(Whatsapp/Wechat) 86-13259417953(Whatsapp)
029-84385017 sales@pioneerbiotech.com CHINA 3001 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
Shanghai Standard Technology Co., Ltd.
18502101150
+86-21-57127007-6606 ft-sales@nature-standard.com CHINA 1923 58

View Lastest Price from koumine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-02 koumine
1358-76-5
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2020-05-11 Koumine
1358-76-5
US $0.00 / mg 5mg ≥98%(HPLC) 10 g Shanghai Standard Technology Co., Ltd.
2019-07-06 koumine
1358-76-5
US $1.00 / KG 1g 99% 100KG career henan chemical co

1358-76-5(koumine)Related Search:


  • koumine
  • (3R,7alpha,20alpha)-1,2,18,19-Tetradehydro-3,17-epoxy-7,20(2H,19H)cyclovobasan
  • 7,20(2H,19H)-Cyclovobasan, 1,2,18,19-tetradehydro-3,17-epoxy-, (3R,7alpha,20alpha)-
  • 6,4-(Epoxymethano)-3,11b-methano-11bH-pyrido[4,3-c]carbazole, 11c-ethenyl-1,2,3,4,4a,5,6,11c-octahydro-2-methyl-, (3S,4S,4aR,6R,11bS,11cS)-
  • 1358-76-5
  • 58-76-5
  • Alkaloids
  • chemical reagent
  • pharmaceutical intermediate
  • phytochemical
  • reference standards from Chinese medicinal herbs (TCM).
  • standardized herbal extract
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