코스넷:::::화장품원료:::::

 ▣ 천연물에서 분리된 개별유효성분 레코드 등록정보

성 분 명 

7-Hydroxy-3-(4-hydroxybenzylidene)-4-chromanone

다른이름들 

7-Hydroxy-3-(4'-hydroxybenzylidene)chroman-4-one 2,3-Dihydro-7-hydroxy-3-[(4-hydroxyphenyl)methylene]-4H-1-benzopyran-4-one

함유 천연물 

Caesalpinia sappan Linne[소목](소목(蘇木))

분 자 식 

C₁₆H₁₂O₄

화학족 분류 

감마-피론(gamma_pyrone);

분 자 량 

268.272

녹 는 점 

248-249°C Acetone/hexane

UV_CHART 

(λmax, nm) (MeOH):369(4.58), 323sh(4.46), 239(4.34)

HNMR_CHART 

(CD3OD,100 MHz) δ:5.35(2H, d, 1.8, H2), 7.80(1H, d, 8.8, H5), 6.53(1H, dd, 2.2, 8.8, H6), 6.31(1H, d, 2.2, H8), 7.71(1H, t, 1.8, H9), 7.25(1H, d, 9.0, H2'), 6.88(1H, d, 9.0, H3'), 6.88(1H, d, 9.0, H5'), 7.25(1H, d, 7.25, H6')

MASS_CHART 

M+= 268.073, m/z= 267, 151, 138, 137(100), 132, 131, 103, 77

참고문헌 

· M. Namikoshi et al., Phytochemistry, 26, 1831, 1987