国产美女视频黄a视频免费|2019日韩中文字幕mv|国产91对白在线播放丿|精品影院|午夜少妇拍拍视频在线观看

Contact Us
Nanjing duly Biotechnology Co., Ltd.
地址:南京市浦口區(qū)創(chuàng)芯匯2棟503
郵編:210031
電話:025 84699415
傳真:025 84699415

3,3-Diamonobenzidine

CAS No.: 91-95-2
Item No.: SR0101
Store at: 2~8℃, away from ligh

CAS No.: 91-95-2

C12H14N4=214.27

Grade: BR

Content: ≥ 98.0%

Melting point: 172 ~ 180 ℃

Physicochemical properties : dark red or brown crystalline powder. Sensitive to light. Exposure to air rapidly deepens. Soluble in dilute acid and hot water. The minimum lethal dose (rat, oral) was 3000mg / kg. Carcinogenic possibility

Purpose: biochemical research. Reagent for spectrophotometric determination of selenium. Peroxidase substrate.

Storage: 2 ~ 8 ℃, protected from light



Copyright ?2021 南京杜萊生物技術(shù)有限公司 版權(quán)所有 Record No:蘇ICP備18062211號-1