Shanghai Yiji Industrial Co., Ltd. is one of the authoritative suppliers of biological reagents in China. It specializes in the distribution of well-known brands in the field of biological sciences. The products have fast delivery times, high quality and guaranteed brands.
Cas number 636-73-7
Molecular formula C5H5NO3S
Molecular weight 159.16
3-Pyridinesulfonic acid
White to almost white powder or crystal, soluble in water, insoluble in methanol, insoluble in ether, benzene and trichloroethane.
Melting point:> 300 ℃ Appearance Appearance white to off-white powder Infrared spectrometry and reference substance matching purity Purity ≥98% (neutralization titration)
Water ≤1.0%
paper drill machine,
This machine is equipped with high power motor with strong drill force. Initally invent the multi positioning ruler to easily realize the various positioning and continuous drilling with edge distance and hole distance to be adjusted and changed easily. It is running very stably because of the special structure and design so the drill bits can be used for a long time and not easy to be broken. It is widely suitable for hangtags, account books, calender, paper bags, notbooks, samples, folders, handbooks and so on.
The Drill Bit is the international standard products. it is produced strictly according to Germany standards.The inner wall and wall thickness of the drill bits are made under special process and the drill bits can be used repeatedly for many times by grinding and sharpening correctly and professionally.
Paper Drilling Machine,Drill Bit,Drilling Machine,Paper Hole Making Machine
DongGuan FeiYang Packaging Machinery Equipment Co., Ltd , https://www.feiyang-machinery.com