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:[email protected]

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:[email protected]

address:Ganheba Village, Qingzhen City, Guiyang City

Mobile website

Mobile website

日本人妻丰满熟妇久久久久久| 肉体裸交丰满丰满少妇在线观看| 亚洲va中文字幕无码久久| 国产午夜精品一区二区三区软件| 一区二区三区乱码在线 | 欧洲| 人妻免费久久久久久久了| 亚洲 欧美 中文 日韩aⅴ| 亚洲v无码一区二区三区四区观看| 国产操逼视频| 国产精品久久婷婷六月丁香| 国产精品理论片在线观看| 免费国精产品自偷自偷免费看| 国产无遮挡裸体免费视频在线观看| 久久久久亚洲av成人无码电影| 毛片无码免费无码播放| 草草网站影院白丝内射| 亚洲男人av香蕉爽爽爽爽| 欧美牲交a欧美牲交aⅴ免费真| 美女视频黄频a免费| 色五月激情五月| 天堂а√在线中文在线最新版| 无码国产69精品久久久孕妇| 国产精品免费看久久久| 日本三级香港三级三级人!妇久| 大胆gogo高清在线观看| 亚洲色欧美在线影院| av色综合久久天堂av色综合在| 色拍拍欧美视频在线看| 亚洲精品久久7777777| 亚洲国产精品国自产拍av| 亚洲精品永久在线观看| 成人乱人乱一区二区三区| 欧美午夜精品久久久久久浪潮| 欧美午夜精品久久久久免费视| 色婷婷av久久久久久久| 中出内射颜射骚妇| 久久久久久av无码免费看大片| 三男一女吃奶添下面视频| 久久99久久99精品中文字幕| 亚洲一久久久久久久久| 97久久综合区小说区图片区|