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无色透明液体，近于无气味，微有苦味。有很强的极性，并有吸湿性溶于水、乙醇、丙酮、乙醚、苯和氯仿，不溶于除乙炔以外的脂肪烃。能溶解环氧乙烷、苯甲酸、樟脑、糖类、油脂等，也能溶解二氧化硫、二氧化氮、氯化钙、硝酸钠。
密度: 1.1  
熔点: 18.4 °C  
沸点: 189 °C  
折光率: 1.477-1.48  
闪点: 87 °C  

项目                               分析纯    
                                    (AR)
纯度purity                         >99.0% (GC )
结晶点/℃                          18.0~20.0  
密度Density（20℃）/（g/mL）       1.098～1.106  
水分water                          ≤0.2%  
折光率Refractive index n20/D       1.478～1.480


项目                               优级纯                
                                   （GR）
纯度purity                         >99.8% (GC )
外观Appearance                     无色透明液体
色度Color scale                    
<10 APHA >水分Water                          
<0.1 % >蒸发残渣Residue after evaporation  
<0.003 % >酸Acidity                          
<0.04 mg KOH/g >

项目                                    农残级    
                                     (for residue analysis)
外观Appearance                          无色液体
纯度Purity                              >99.8% (GC)
紫外吸收UV Absorbance:
Wavelength (nm) Max. Absorbance
  268                                   1.000
  275                                   0.500
  300                                   0.200
  350                                   0.020
  400                                   0.005
折光率Refractive Index at 20°C         1.4785 ± 0.0015
蒸发残渣Residue                        
<5 mg/L >水分Water                              
<250 ppm >（注：农残级适合HPLC、GC、农残分析、光谱分析、有机合成等多用途高纯溶剂）




项目                               ACS光谱级
                               （ACS，for spectroscopy ）
外观Appearance                     无色透明液体
纯度purity                         >99.90 % (GC )
λ H2O reference
UV absorption
  λ: 270 nm A:                     ≤0.40
  λ: 290 nm A:                     ≤0.18
  λ: 310 nm A:                     ≤0.06
  λ: 330 nm A:                     ≤0.02
  λ: 350 nm A:                     ≤0.01
  λ: 400 nm A:                     ≤0.01  
可滴定酸Titr. acid (meq/g)         ≤0.001  
水分Water (by Karl Fischer)        ≤0.100%  
蒸发残渣Residue on Evaporation     ≤0.0100%




项目                               无水溶剂级              
                          （water
<50 ppm, extra dry ）>纯度purity                         >99.7%(GC )
外观Appearance                     无色透明液体
色度Color scale                    
<5 APHA >水分Water                          
<0.005 %(Coulometric) >乙酸Acidity (CH3COOH)              
<0.003 % >蒸发残渣Residue after evaporation  
<0.0005 % >0.2um过滤膜 Filt.over 0.2 micron   PFTE



项目                               分子生物学专用          
                     （ DNAse, RNAse and Protease free）
纯度purity                         >99.80%(GC )
外观Appearance                     无色透明液体
色度Color scale                    
<20 APHA >水分Water                          
<0.1 % (Coulometric) >蒸发残渣Residue after evaporation  
<0.001 % >Dnase,Rnase,Protease检测           未检测到



项目                               多肽合成专用  
                                   (for peptide synthesis)
纯度purity                         >99.80%  (GC )
外观Appearance                     无色透明液体
水分Water                          
<0.005 %(K.F.) >酸Acidity (CH3COOH)                
<0.003 % >游离胺Free amine                  
<0.0002 % >蒸发残渣Residue after evaporation  
<0.001 % >


ACS级
项目名称　                           ACS Grade
含量[(CH₃)₂SO]Assay                 ≥99.9%
蒸发残渣Residue after evaporation   ≤0.01%
可滴定酸Titrable acid               ≤0.001meq/g
水分(H₂O)Water                      ≤0.1%


项目                               色谱级
                               （for HPLC, ≥99.7%）
外观Appearance                     无色透明液体
纯度purity                         >99.70 % (GC )
λ H2O reference
UV absorption
  λ: 270 nm A:                     ≤0.40
  λ: 290 nm A:                     ≤0.18
  λ: 310 nm A:                     ≤0.06
  λ: 330 nm A:                     ≤0.02
  λ: 350 nm A:                     ≤0.01
  λ: 400 nm A:                     ≤0.01  
水分Water (by Karl Fischer)        ≤0.2 %
蒸发残渣Residue on Evaporation     ≤0.002 %



项目                                    医药级    
                                        (Medicine Grade)
含量assay(以DMSO计)%                    ≥99.90
结晶点Crystalizing Point ℃             ≥18.30
酸值Acid Value mgKOH/g                  ≤0.02
折光率befractive index 20℃             1.4775-1.4790
紫外消光值UV Absorption :
   275nm                                ≤0.30
   285nm/275nm                          ≤0.65
   295nm/275nm                          ≤0.45


项目                                    电子级    
                                      (Electronic Grade)
含量assay(以DMSO计)%                    ≥99.90 (GLC)
比重Specific Gravity(g/cc)              >1.09
结晶点Crystalizing Point ℃             ≥18.30
酸值,MEQ/G Titratable Acid, MEQ/G       ≤0.001
水分%  Water,%                          ≤