天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片



JR-6661, (E)-4-(4-Methoxyphenyl)-4-oxobut-2-enoic acid, 97%
Details
Catalog ID: JR-6661 Name: (E)-4-(4-Methoxyphenyl)-4-oxobut-2-enoic acid
CAS Number: 5711-41-1 Formula: C11H10O4
Mol. Weight: 206.2 Purity: 97%
Melting Point: 134 - 138 °C
Pricing
QuantityPrice(USD)
5g250
Quantity
gm