MDL：
--MFCD00005183

分子式：
C3H4N2

分子量：
68.08

別名：
甘噁啉 1,3-Diazole Glyoxaline 1,3-diaza-2,4-cyclopentadiene n,n'-vinylene-formamidin

產(chǎn)品訂購(gòu)：

品名	規(guī)格	包裝	單價(jià)	貨期
咪唑	＞99.0%	25g	165元	現(xiàn)貨
咪唑	＞99.0%	100g	297元	現(xiàn)貨
咪唑	＞99.0%	500g	1320元	現(xiàn)貨
咪唑	99.5%，分子生物學(xué)級(jí)	25g	1210元	現(xiàn)貨
咪唑	99.5%，分子生物學(xué)級(jí)	5g	352元	現(xiàn)貨
咪唑	99.5%，用于熒光分析	25g	748元	現(xiàn)貨
咪唑	99.5%，用于熒光分析	5g	286元	現(xiàn)貨
咪唑	99.5%，用于緩沖溶液	1kg	1155元	現(xiàn)貨
咪唑	99.5%，用于緩沖溶液	500g	748元	現(xiàn)貨
咪唑	99.5%，用于緩沖溶液	100g	228.8元	現(xiàn)貨

性狀：
無(wú)色或白色棱柱體結(jié)晶。易溶于水、乙醇、乙醚、氯仿和吡啶，微溶于苯，極微溶于石油醚。半數(shù)致死量(小鼠，經(jīng)口)1880mg/kg。有腐蝕性。
熔點(diǎn)：86-92℃
沸點(diǎn)：257℃
閃點(diǎn)：145℃

質(zhì)量標(biāo)準(zhǔn)：
   
   99%:

外觀Appearance                          白色薄片或結(jié)晶
紅外光譜鑒別Infrared spectrometry       和對(duì)照匹配
純度Purity                              ≥99.0% (GC)  
熔點(diǎn)Melting point                       85°C - 90°C
水分water                               ≤0.2%(K.F)

99.5%（用于緩沖溶液）:

外觀Appearance                          白色至類(lèi)白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥99.5% (GC)  
熔點(diǎn)Melting point                       86°C - 92°C
灼燒殘?jiān)黫gn. residue (900 °C)          ≤0.1%
pH                                      9.5-11.0 (25 °C, 50 mg/mL in H2O)
pKa (25 °C)                            6.95
氯chloride (Cl-):                       ≤50 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Ca:                                   ≤10 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                    ≤50 ppm
  Mg:                                   ≤5 ppm
  Mn:                                   ≤5 ppm
  Na:                                   ≤50 ppm
  Ni:                                   ≤5 ppm
  Pb:                                   ≤5 ppm
  Zn:                                   ≤5 ppm

品級(jí)Grade                               熒光分析級(jí)  
                                    (for Fluorimetric Analysis)
外觀Appearance                          白色至類(lèi)白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥99.5% (GC)  
熔點(diǎn)Melting point                       86°C - 92°C
不溶物insoluble matter,                 passes filter test
水分water                               ≤0.2%（K.F)  
灼燒殘?jiān)黫gn. residue (900 °C)          ≤0.05%
熒光fluorescence λex 200-600 nm; λem 300-800 nm (corresponds)
pH                                      9.5-11.0 (25 °C, 0.1 M in H2O)
pKa (25 °C)                            6.95
氯chloride (Cl-):                       ≤50 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Al:                                   ≤10 ppm
  As:                                   ≤0.1 ppm
  Ba:                                   ≤5 ppm
  Bi:                                   ≤5 ppm
  Ca:                                   ≤50 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                   ≤50 ppm
  Li:                                   ≤5 ppm
  Mg:                                   ≤5 ppm
  Mn:                                   ≤5 ppm
  Mo:                                   ≤5 ppm
  Na:                                   ≤50 ppm
  Ni:                                   ≤5 ppm
  Pb:                                   ≤5 ppm
  Sr:                                   ≤5 ppm
  Zn:                                   ≤5 ppm
λ 0.1 M in H2O
紫外吸收UV absorption
  λ: 260 nm Amax:                       0.10
  λ: 280 nm Amax:                       0.10

品級(jí)Grade                               分子生物學(xué)級(jí)  
                                      (for molecular biology)
DNA酶DNases,                            none detected
RNA酶RNases,                            none detected
磷酸酶phosphatases,                     none detected
蛋白酶proteases,                        none detected
外觀Appearance                          白色至類(lèi)白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥99.5% (GC)  
熔點(diǎn)Melting point                       86°C - 92°C
不溶物insoluble matter,                 passes filter test
水分water                               ≤0.2%（K.F)  
灼燒殘?jiān)黫gn. residue (900 °C)          ≤0.05%
熒光fluorescence λex 200-600 nm; λem 300-800 nm (corresponds)
pH                                      9.5-11.0 (25 °C, 0.1 M in H2O)
pKa (25 °C)                            6.95
氯chloride (Cl-):                       ≤50 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Al:                                   ≤10 ppm
  As:                                   ≤0.1 ppm
  Ba:                                   ≤5 ppm
  Bi:                                   ≤5 ppm
  Ca:                                   ≤50 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                   ≤50 ppm
  Li:                                   ≤5 ppm
  Mg:                                   ≤5 ppm
  Mn:                                   ≤5 ppm
  Mo:                                   ≤5 ppm
  Na:                                   ≤50 ppm
  Ni:                                   ≤5 ppm
  Pb:                                   ≤5 ppm
  Sr:                                   ≤5 ppm
  Zn:                                   ≤5 ppm
λ 0.1 M in H2O
紫外吸收UV absorption
  λ: 260 nm Amax:                       0.10
  λ: 280 nm Amax:                       0.10

貯存：
密封陰涼干燥保存。
用途  鈷的測(cè)定。有機(jī)合成。用于抗新陳代謝、抗組織胺。pH值在6.2-7.8范圍內(nèi)，可作為緩沖液。天門(mén)冬氨酸和谷氨酸滴定