


| Name | Specifications | Packing | Price | Delivery | 
| Dimethyl sulfoxide | 细胞培养级 | 50ml | RMB 396 | 现货 | 
| Dimethyl sulfoxide | ACS,>99.9% | 100ml | RMB 82.5 | 现货 | 
| Dimethyl sulfoxide | ACS,>99.9% | 500ml | RMB 187 | 现货 | 
| Dimethyl sulfoxide | 多肽合成专用 | 500ml | RMB 316.8 | Consulting service | 
| Dimethyl sulfoxide | 分光纯 | 500ml | RMB 206.8 | Consulting service | 
| Dimethyl sulfoxide | GR | 10L | RMB 1078 | Consulting service | 
| Dimethyl sulfoxide | GR | 2.5L | RMB 327.8 | Consulting service | 
| Dimethyl sulfoxide | 农残级 | 4L | RMB 968 | Consulting service | 
| Dimethyl sulfoxide | 农残级 | 500ml | RMB 195.8 | Consulting service | 
| Dimethyl sulfoxide | 药用级 | 500ml | RMB 85.8 | Consulting service | 
| Dimethyl sulfoxide | 分子生物学专用,≥99.9% | 250ml | RMB 228.8 | Consulting service | 
| Dimethyl sulfoxide | 无水溶剂级 | 500ml | RMB 228.8 | Consulting service | 
| Dimethyl sulfoxide | HPLC, 99.9% | 4L | RMB 858 | Consulting service | 
| Dimethyl sulfoxide | HPLC, 99.9% | 1L | RMB 228.8 | Consulting service | 
| Dimethyl sulfoxide | HPLC, 99.9% | 500ml | RMB 140.8 | Consulting service | 
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                               分光纯
                             (for spectroscopy )
纯度purity                         >99.90 % (GC )
外观Appearance                     无色透明液体
色度Color scale                    <10 APHA
水分Water                          <0.05 %
UV at 270 nm A:                    <0.5
   at 280 nm A:                    <0.3
   at 290 nm A:                    <0.2
   at 300 nm A:                    <0.1
   at 320 nm A:                    <0.05
   at 360 nm A:                    <0.01
蒸发残渣Residue after evaporation  <0.005 %
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%
色谱纯
适用于HPLC
含量                                   ≥99.9%(GC)
吸光度
λ:270nm                               Amax:0.70
λ:280nm                               Amax:0.30
λ:300nm                               Amax:0.10
λ:350nm                               Amax:0.01
不挥发物                               ≤0.002%
水分                                   ≤0.2%
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,%                          ≤
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