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에키네논 C화학적 특성, 용도, 생산

용도

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.

정의

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.

일반 설명

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.

Purification Methods

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.]

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공급자	전화	이메일	국가	제품 수	이점
Shaanxi Dideu Medichem Co. Ltd	18192627656	1012@dideu.com	China	3002	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	10002	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	17691182729 18161915376	1046@dideu.com	China	10007	58
JiangSu Star Science Co.,Ltd	400-400-605-7200-7200 17312445705	sales022@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	9269	58
Nanjing Shizhou Biology Technology Co.,Ltd	025-85560043 15850508050	rose.shi@synzest.com	China	6210	58

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