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N-N-Dimethylacetamide

Cas:
127-19-5
Molecular Structure:
MDL:
MFCD00008686
Molecular Formula:
C4H9NO; CH3CON(CH3)2
Molecular Weight:
87.12
Alias:
乙酰二甲胺,二甲替乙酰胺,二甲基乙酰胺
Product order:
Name Specifications Packing Price Delivery
N-N-Dimethylacetamide GCS,≥99.9% (GC) 5ml RMB 52.8 Consulting service
N-N-Dimethylacetamide for HPLC, ≥99.8% (GC) 500ml RMB 129.8 Consulting service
N-N-Dimethylacetamide AR 500ml RMB 52.8 Consulting service
N-N-Dimethylacetamide GR 500ml RMB 74.8 Consulting service
N-N-Dimethylacetamide GR 10L RMB 643.5 Consulting service
N-N-Dimethylacetamide GR 25L RMB 1078 Consulting service
N-N-Dimethylacetamide for HPLC, ≥99.8% (GC) 1L RMB 204.6 Consulting service
N-N-Dimethylacetamide 光谱级, ≥99.8%(GC) 500ml RMB 126.5 Consulting service
N-N-Dimethylacetamide 光谱级,≥99.8%(GC) 4L RMB 643.5 Consulting service
N-N-Dimethylacetamide 多肽合成级, ≥99.8%(GC) 500ml RMB 316.8 Consulting service
N-N-Dimethylacetamide 多肽合成级, ≥99.8%(GC) 4L RMB 2035 Consulting service
N-N-Dimethylacetamide for HPLC, ≥99.8% (GC) 4L RMB 643.5 Consulting service
N-N-Dimethylacetamide 紫外光谱级, ≥99.8%(GC) 500ml RMB 129.8 Consulting service
Character:
 无色或近似无色澄明液体, 溶于水,溶于丙酮、苯、氯仿、乙醇、甲苯等大多数有机溶剂。 密度:0.937   熔点:-20 °C 沸点:164-166 °C   折光率nD20:1.437-1.439   闪点:70 °C  
Quality Standard:
项目Item                                    分析纯          
                                             (AR)            
纯度Purity                                ≥99.0% (GC)
比重Specific gravity (20/20°C)           0.9385-0.9420  
沸程Boiling range,℃                      165-167(95%)  
游离酸(以CH3COOH计)Free acid,%              ≤0.001        
折光率Refractive index n20/D              1.437-1.439    
灼烧残渣Ignition residue,%                   ≤0.005          
水份Water,%                                  ≤0.05            
混合度Miscibility                            合格

项目                                       优级纯  
                                            (GR)
外观Appearance                            清澈、无悬浮物
纯度Purity                                ≥99.9% (GC)
色度Color scale,Hazen单位                ≤10(铂-钴色号)
水water                                   ≤250 ppm
铁Iron(Fe)                                ≤0.050ppm  
酸度Acidity(乙酸计)                     ≤100.0ppm  
碱度alkalinity(二甲胺计)                ≤5.0ppm
电导率conductivity(25℃)                ≤0.50 us/cm
            


项目                                       化学纯  
                                            (CP)
纯度Purity                                 ≥98.0% (GC)
沸程Boiling range,℃                       164.0~167.0
比重Specific gravity (20/20°C)            0.938~0.942  
折光率Refractive index n20/D               1.437~1.439      
酸度Acidity(以H+计)/(mmol/100g)          ≤0.002  
水分water                                  ≤0.10%  

项目                                              色谱纯
                                                  (HPLC)
纯度Purity                                      ≥99.8% (GC)
紫外吸光度UV Absorbance:
最大吸收波长Wavelength (nm) Max. Absorbance
268                                                1.000
275                                                0.300
300                                                0.080
350                                                0.005
400                                                0.005
溶剂洗脱杂质GC Impurities Eluting Before Solvent  <0.5 mg/L
水分Water                                          <0.03%
(色谱纯用于HPLC, GC和光谱级,氮气封装。)


品级Grade                               光谱级  
                                    (spectrophotometric grade)
外观Appearance                          白色至米黄色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.8% (GC)
λ H2O reference  
UV Absorbance 400nm                     ≤0.01
UV Absorbance 360nm                     ≤0.01
UV Absorbance 320nm                     ≤0.03
UV Absorbance 310nm                     ≤0.05
UV Absorbance 290nm                     ≤0.15
UV Absorbance 280nm                     ≤0.30
UV Absorbance 270nm                     ≤1.0
水分Water (by Karl Fischer)             ≤0.05 %
蒸发残渣Residue on Evaporation          ≤0.001 %


品级Grade                               多肽合成级  
                                  (grade for peptide synthesis)
外观Appearance                          透明液体
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.8% (GC)
水分water                               ≤0.02%  
胺测试实验suitability in amine test     pass test


品级Grade                               紫外光谱级  
                                  (grade for UV-spectroscopy )
纯度Purity                              ≥99.8% (GC)
λ 1 cm path, H2O reference
UV absorption
  λ: 280 nm                             ≤0.3
  λ: 290 nm                             ≤0.15
  λ: 310 nm                             ≤0.05
  λ: 320 nm                             ≤0.03
  λ: 360 nm                             ≤0.005 

Storage:
密封保存。
用途  用于药物合成的反应溶剂,合成纤维纺丝与合成树脂的溶剂,感光化学品发色剂的溶剂,涂料等的溶剂。催化剂。
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