国精产品一区一区二区三区MBA_少妇乳大丰满在线播放_日本在线视频中文有码_免费精品国产va自在自线_中字精品_九色蝌蚪在线观看

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： 夹江县| 娱乐| 大田县| 二手房| 梅州市| 田林县| 游戏| 晋江市| 南投县| 望奎县| 锡林浩特市| 武城县| 潍坊市| 黑山县| 巫山县| 微博| 启东市| 彩票| 休宁县| 榆林市| 子长县| 静海县| 华池县| 元朗区| 阿巴嘎旗| 七台河市| 建水县| 沙雅县| 神农架林区| 曲靖市| 颍上县| 石屏县| 乐亭县| 河间市| 抚宁县| 新和县| 绿春县| 南昌市| 松原市| 千阳县| 当阳市|