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Products
PVP-K (PVP Povidone)
PVP-K30
PVP-K90
PVP-K25
PVP-K15
PVP-K17
PVP-VA (PVP/VA Copolymer)
PVP-VA64
PVP-VA73
PVP-VA37
PVP-VA55
PVP-Iodine
PVP-P (Crosslinked)
NVP (N-Vinylpyrrolidone)
NMP (N-Methyrrolidone)
NEP (N-Ethylpyrrolidone)
PQ-11 (Polyquaterniunm-11)
GBL (г-Butyrolactone)
2-Pyrrolidone
COOH
Products
公司的主导产品涵盖乙烯基吡咯烷酮 (NVP) 、均聚物 (PVP-K) 、共聚物 (PVP-A) 、交联聚合物 (PVP-P)和络合物 (PVP-I)等五大系列。其中,均聚物、交联聚合物和络合物产品质量均达到中国 (CP2000) 、欧洲 (European Pharmacopeia) 与美国 (American Pharmacopeia) 最新版药典的要求。公司于 2002 年通过 ISO9001 全面质量管理体系的认证。另外,欧洲 DMF/COS 认证,美国 FDA 认证等工作正在进行中。多样化的产品结构, 严格的质量保证体系,完善的售后服务,使南杭公司赢得了广大用户的青睐。
PVP-K (PVP Povidone)
PVP-K30     PVP-K90     PVP-K25     PVP-K15     PVP-K17    
PVP exists as powder or aqueous solution. It can dissolve in water and variety of organic solvent .It is generally used in cosmetics , surfactants , pharmaceutical industry and other related industrial fields.
PVP-VA (PVP/VA Copolymer)
PVP-VA64     PVP-VA73     PVP-VA37     PVP-VA55    
Copolymer of different proportion of vinylpyrrlidone to vinyl acetate can be offered in powder or alcohol solution product. The aqueous product could be cloudy.
PVP-Iodine
PVP-Iodine is a stable chemical complex of polyvinylpyrrolidone (PVP) and elemental iodine, which is completely soluble in water, ethanol etc. PVP-Iodine can extinguish bacterial, virus, fungus effectively. It is a stable complex with no irritation, which can dissolve in water completely. PVP-Iodine is the first selected iodine containing microbicide in developed country.
PVP-P (Crosslinked)
PVP-P behaves as a white or creamy white powder with faint characteristic odor, which is highly hydrophilic and capable of complex with such substance as phenol, etc. It is completely insoluble with relatively high crosslink density and does not form gels that can impede disintegration, dissolution and drug release.
NVP (N-Vinylpyrrolidone)
Colorless liquor, melting point is 11 . insoluble in petroleum ether but soluble in water, alcohol, chlorofrom, benzene, ethyl acetate and carbon disulfide.
NMP (N-Methyrrolidone)
N-Methyl-2-pyrrolidone is a colorless to slightly yellow liquid, with a faint amine odor. NMP is miscible with water and conventional organic solvents.
NEP (N-Ethylpyrrolidone)
NEP
PQ-11 (Polyquaterniunm-11)
Quaternized copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate.PQ-11 is a high molecular weight product (average molecular weight ~ 1,000,000), supplied as a highly viscous, aqueous solution (20% solids).
GBL (г-Butyrolactone)
2-Pyrrolidone
2-pyrrolidone is a colorless to slightly yellow liquid, with a faint amine odor. 2-P is a high-polar solvent and it is miscible with water and conventional organic solvents.
COOH
COOH
 
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