无码人妻丝袜在线视频_成年免费视频黄网站zxgk_国产欧美在线观看不卡_992tv精品视频tv在线观看_欧美极品少妇无套实战

One stop laboratory

Overall solution service provider

電話

contact

phone

851-2569016

13809460779

內(nèi)頁banner

Product Center

current location: Home> Product Center> Aroma chemical

Contact Us聯(lián)系我們

GuiZhou QingZhen Rise Fine Chemicals Co.,Ltd.

mobile:13809460779

phone:0851-2569016

email:contcat@eschemical.com

website:www.mkpq.com.cn

address:Ganheba Village, Qingzhen City, Guiyang City

5H-5-Methyl-6,7-dihydrocyclopentapyrazine

source:GuiZhou QingZhen Rise Fine Chemicals Co.,Ltd. Release time:2024-06-13 browse:893

5H-5-Methyl-6,7-dihydrocyclopentapyrazine

P015

Molecular formula: C8H10N2

Molecular weight: 134.178

Assay:>99.0%

Boiling point:78-80℃/10mmHg, 47℃/0.7mmHg

Refractive index:1.5290

Appearance:Colorless to light yellow liquid.

Rugulaton status:FEMA NO.3306

Sense and characteristics:Have flavour of toastfood;like roasted meat and baked bread.

phone:13809460779   0851-2569016

mailbox:contact@eschemical.com

address:Ganheba Village, Qingzhen City, Guiyang City

Mobile website

Mobile website

久久久久人妻一区精品色欧美| 国产精品后入内射日本在线观看| а√天堂资源8在线官网在线| 久久婷婷五月综合色国产| 国产精品午夜福利视频234区| 国产无人区码一码二码三mba| 欧美激情精品久久久久久| 国产精品成人99一区无码| 成人免费777777被爆出| 国产大片黄在线观看| 人妻熟妇乱又伦精品视频app| 爆爽久久久一区二区又大又黄又嫩| 狠狠做深爱婷婷久久综合一区| 国产亚洲精品久久久久婷婷瑜伽| 久久精品中文字幕第一页| 亚洲色成人一区二区三区小说| 青草青草久热国产精品| a级毛片免费观看网站| 中文无码日韩欧免费视频| 欧美粗大无套gay| 久久国产劲爆∧v内射-百度| 免费在线黄色电影| 亚洲国产精品无码中文在线| 精品一区二区三区av天堂| 东北女人毛多水多牲交视频| 亚洲一区精品无码色成人| www.-级毛片线天内射视视| 无码人妻久久一区二区三区不卡| 国产精品揄拍100视频| 久久精品无码一区二区三区| 亚洲熟女综合色一区二区三区| 成人亚洲精品久久久久软件| 天干天干啦夜天干天2017| 国产亚洲色视频在线| 久久国产精品免费一区二区三区| 亚洲精品久久久久玩吗| 在线观看午夜亚洲一区| 久久精品国产99国产精品导航| 无码一区二区三区| 国产精品99久久免费观看| 久久精品国产精品亚洲色婷婷|