日本欧美一区二区三区在|国内日韩免费在线一级片|亚洲精品无码国产日韩二三区|影视先锋AV中文字幕|好看的黄色网站欧美-大影AV

非会员试看十分钟做受小视频,无遮挡又黄又刺激的免费视频,国产人妖TS视频一区二区,欧美性爱视频手机在线,你懂的日最新视频在线

日本欧美一区二区三区在|国内日韩免费在线一级片|亚洲精品无码国产日韩二三区|影视先锋AV中文字幕|好看的黄色网站欧美-大影AV

會員登錄
請登錄您的生意號,獲取電子名片。便于轉發分享!
取消
會員登錄
請登錄您的生意號,獲取電子名片。便于轉發分享!
取消
4-(Diethylamino)salicylaldehyde
4-(Diethylamino)salicylaldehyde
Product Category:Others

№D402
CAS Rn: [17754-90-4]
Molecular weight: 193.24
Simple formula: C11H15NO2
Chemical structure formula:

SPECIFICATIONS:
Identification: Infrared Absorption
Appearance: Crystalline powder
Colour: Light pink red
Purity: 99.0% min(HPLC)
Melting point: 60~62°C
Loss on drying: 1.0% max
Heavy metals
Lead: 10ppm max
Arsenic: 3ppm max
Mercury: 1ppm max
Packing: In 25kg net drum with PE liners

Home

Home

News information

News

About Us

About Us

Products

Products

Contact Us

Contact Us