欧美一级性爱中文字幕_亚洲人成高清无码在线观看_欧美日韩国产成人免费高清视频_玖玖资源站中文字幕一区二区

Home | 中文版
About UsProductsQualityFactoryOrderContact Us

Products

Putrescine Dihydrochloride
Product name: Putrescine Dihydrochloride
Molecular formula: C4H12N2·2HCL
CAS NO.: 333-93-7
Package: 25kg/drum
Batch No.: P20060521
CERTIFICATE OF ANALYSIS
Items Specification Results
Appearance White needles crystalline Pass
Assay(Cl)% ≥98.5% 99.7%
Solubility(1.0g in 50ml H2O) Clear Pass
Loss on drying % ≤0.5% 0.2%
Residue on ignition% ≤0.2 0.18
Sulfate(SO4)% ≤0.020% 0.010%
Arsenic(AS2O3)ppm ≤10 Pass
Heavy metals(Pb)ppm ≤10 Pass
Storage & Shelf life 2 years in original sealed container, cool, dry place.
Scan Contact Us
Copyright(C)2018, Changzhou Aide Biology Technology Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice 備案序號：蘇ICP備06002541號