Abstract: A solar dark green glass and a vehicle are provided. The solar dark green glass includes a glass basic component and a glass tinted component. The solar dark green glass includes a glass basic component and a mass tinted component. The glass tinted component includes, as percentages by weight, 0.8%-2.0% total iron expressed as Fe2O3, 0.01%-0.6% TiO2, 0.001%-2.0% CeO2, 5 ppm-150 ppm Cr2O3, 15 ppm-60 ppm Zro2, 2 ppm-1000 ppm CuO, 5 ppm-50 ppm SrO, 80 ppm-200 ppm BaO, and 5 ppm-120 ppm Co2O3. A content of total iron expressed as Fe2O3 and a content of TiO2 total 1.0%-2.0%, and the content of TiO2 and a content of CeO2 total 0.2%-2.1%. The solar dark green glass manufactured has a thickness of 1.6 mm-2.1 mm, and solar direct transmittance less than or equal to 65%, infrared transmittance less than or equal to 45%, and ultraviolet transmittance less than or equal to 35%.

Abstract: The present invention relates to the field of natural pharmaceutical chemistry, and in particular, to a resveratrol dimer (7R,8R)-trans-?-viniferin (I), a preparation process therefor and a purpose thereof in lowering a blood sugar level. According to the present invention, an R type of resveratrol dimer is separated from the resveratrol dimer by using high-speed countercurrent chromatography. Pharmacodynamic tests proved that the R type of resveratrol dimer has a better effect in lowering a blood sugar level than a racemate.

Abstract: The present invention relates to the field of natural pharmaceutical chemistry, and in particular, to a resveratrol dimer (7R,8R)-trans-?-viniferin (I), a preparation process therefor and a purpose thereof in lowering a blood sugar level. According to the present invention, an R type of resveratrol dimer is separated from the resveratrol dimer by using high-speed countercurrent chromatography. Pharmacodynamic tests proved that the R type of resveratrol dimer has a better effect in lowering a blood sugar level than a racemate.