Detail of "34539-65-6"

CAS Number:
34539-65-6
Name:
2-Butenoic acid,3-methyl-,(1S)-1-(1,4-dihydro-5,8-dihydroxy-1,4-dioxo-2-naphthalenyl)-4-methyl-3-penten-1-ylester
Superlist Name:
beta,beta-Dimethylacrylalkannin
Molecular Structure:
Formula:
C21H22 O6
Synonyms:
2-Butenoicacid, 3-methyl-, (1S)-1-(1,4-dihydro-5,8-dihydroxy-1,4-dioxo-2-naphthalenyl)-4-methyl-3-pentenylester (9CI); 2-Butenoic acid, 3-methyl-,1-(1,4-dihydro-5,8-dihydroxy-1,4-dioxo-2-naphthalenyl)-4-methyl-3-pentenylester, (S)-; Crotonic acid, 3-methyl-, 2-ester with 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-pentenyl)-1,4-naphthoquinone(8CI); b,b-Dimethylacrylalkannin

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Naphthoquinone pigments in Xinjiang Ruanzicao (Arnebia euchroma): Naphthoquinone pigments in Xinjiang Ruanzicao (Arnebia euchroma). Fu, Shanlin; Xiao, Peigen (Inst. Med. Plant Dev., Chin. Acad. Med. Sci., Beijing, Peop. Rep. China). Zhongcaoyao, 17(10), 434-7 (Chinese) 1986. CODEN: CTYAD8. ISSN: 0253-2670. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Deoxyshikonin [43043-74-9], b,b-dimethylacrylalkannin [34539-65-6], DL-acetylshikonin [106295-33-4], acetylalkannin [34232-27-4], b-acetoxyisovalerylalkannin [69091-17-4], DL-shikonin [11031-58-6], b-hydroxyisovalerylalkannin [87798-74-1], and 1-methoxyacetylshikonin [106265-27-4] were pigments identified in A. euchroma (a kind of Chinese herbal medicine). IR, NMR, and mass spectrometry were used for the identification.

Analysis of naphthaquinone pigments in some Chinese medicinal "Zi Cao": Analysis of naphthaquinone pigments in some Chinese medicinal "Zi Cao". Fu, Shanlin; Shang, Tianmin; Xiao, Peigen (Inst. Mater. Med., Chin. Acad. Med. Sci., Beijing, Peop. Rep. China). Yaoxue Xuebao, 19(12), 921-5 (Chinese) 1984. CODEN: YHHPAL. ISSN: 0513-4870. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 11 Deoxyshikonin [43043-74-9], b,b-dimethylacrylalkannin [34539-65-6], acetylshikonin [24502-78-1], b-acetoxyisovalerylalkannin [69091-17-4], shikonin [517-89-5] and b-hydroxyisovalerylalkannin [87798-74-1] were isolated from the root of Arnebia euchroma (a Zi Cao prepn.) and identified. Contents of naphthaquinone pigments in other Zi Cao prepns. (roots of Lithospermum erythrorhizon, A. guttata, Onosma paniculatum and O. hookeri) ranged from 0.13% to 6.73%. Regional variations were obsd. All prepns. contained b,b-dimethylacrylalkanin and acetylshikonin as main constituents. Naphthaquinone pigments were detd. by a HPLC scanning method.