91火爆视频_91精品亚?一区二区_a日韩av网址_亚洲日韩在线中文字幕线路2区_少妇裸体淫交免费看片_va一级片

ZHEJIANG ZANCHENG LIFE SCIENCES LIMITED

浙江贊誠生物科技有限公司

ZHEJIANG ZANCHENG LIFE SCIENCES LIMITED

Specializing in the production and management of intermediates and fine chemicals

2,3-Pyrazinedicarboxylic acid

Chemintel Technology

2,3-Pyrazinedicarboxylic acid

Information
Product name: 2,3-Pyrazinedicarboxylic acid;pyrazine-2,3-dicarboxylic acid;
CAS NO.: 89-01-0
Molecular formula: C6H4N2O4
Molecular weight: 168.10700
Precise quality: 168.01700
Physicochemical properties
Appearance: White to light brown crystalline powder
Density: 1.665 g/cm3
Melting point: 179-181 °C (dec.)(lit.)
Boiling point: 449.1 °C at 760mmHg
Flash point: 225.4°C
Water solubility: soluble
Security Information
RTECS: UQ2500000
Safety instructions: S22-S24/25
WGK Germany: 3
Hazard category code: R36/37/38
Dangerous goods sign: F; C
Use This product is an intermediate of the anti-tuberculosis drug pyrazinamide. Sedative hypnotic drug zopiclone intermediate
Specifications
Item Specification
Appearance White to light brown crystalline powder
Melting point 179-181 ℃
2,3-pyrazine (% ≥ By HPLC) 99
2,3-pyrazine By Titration 98-102
Annex

MSDS / TDS
【BACK】

BACK
TOP

主站蜘蛛池模板： 交口县| SHOW| 托克逊县| 汽车| 武冈市| 蓬莱市| 河南省| 湖北省| 鸡西市| 尉氏县| 甘孜县| 洛浦县| 双鸭山市| 思南县| 阜新市| 体育| 博白县| 莱阳市| 雅江县| 芜湖县| 高雄县| 荥经县| 吉林省| 无极县| 永修县| 赤水市| 吉木乃县| 万载县| 岑巩县| 通渭县| 天峻县| 麦盖提县| 张掖市| 盐池县| 柳江县| 启东市| 安塞县| 宣化县| 定襄县| 吉林省| 台中市|