少妇被猛男粗大的猛进出,亚洲 欧美 动漫 少妇 自拍,日韩免费视频,青春草在线视频免费观看

訂購(gòu)電話:4001650900

D-山梨醇

Cas號(hào):
50-70-4
英文名稱(chēng):
D-Sorbitol solution
分子結(jié)構(gòu)式:
MDL:
MFCD00004708
分子式:
C6H14O6
分子量:
182.18
別名:
山梨糖醇,D-山梨糖醇,山梨醇,清涼茶醇,花楸醇,薔薇醇,己六醇 D-Glucitol Sorbitol Glucitol
產(chǎn)品訂購(gòu):
品名 規(guī)格 包裝 單價(jià) 貨期
D-山梨醇 ≥98% 250g 99元
D-山梨醇 ≥98% 500g 165元
D-山梨醇 超純級(jí),99.5% 100g 748元
D-山梨醇 用于細(xì)胞培養(yǎng),≥98% 1kg 418元
D-山梨醇 用于分子生物學(xué), ≥98% 1kg 330元
D-山梨醇 AR 500g 132元
D-山梨醇 AR 100g 55元
性狀:
白色無(wú)臭結(jié)晶性粉末,有甜味,有吸濕性。溶于水(235g/100g水,25℃)、甘油、丙二醇,微溶于甲醇、乙醇、醋酸、苯酚和乙酰胺溶液。幾乎不溶于多數(shù)其他有機(jī)溶劑。存在于各種植物果實(shí)中??扇?。
熔點(diǎn):93℃(介穩(wěn)定態(tài)),97℃(穩(wěn)定態(tài))
密度:1.47(-5℃)
折射率:1.3477
質(zhì)量標(biāo)準(zhǔn):
項(xiàng)目Item                          分析純
                                               (AR)
含量(C6H14O6)Assay,%                       ≥ 98.0
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,%        ≤ 0.1
氯化物(Cl)Chloride,%                          ≤ 0.003
硫酸鹽(SO4)Sulfate,%                          ≤ 0.003
重金屬(以Pb計(jì))Heavy metals,%                  ≤ 0.001
還原糖Reducing sugar,%                        ≤ 0.4
干燥失重Loss on drying,%                      ≤ 0.8  
鐵(Fe), %                                     ≤ 0.0005
鎳(Ni),%                                      ≤ 0.0002
砷(As),%                                      ≤ 0.00013


品級(jí)Grade                               超純級(jí)  
                                       (Ultra pure)
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥99.5% (HPLC)
比旋光度Specific rotation [a]20/D       ?1.5±0.3°, c = 10% in H2O
甜度sweetness                           0.6 × sucrose
不溶物insoluble matter,                 passes filter test
灼燒殘?jiān)黂esidue on ignition             ≤0.1% (as SO4)
干燥損失loss on drying                  ≤0.5% , 20 °C (HV)
pH                                      5.0-7.0 (25 °C, 1 M in H2O)
水溶性solubility H2O:                   soluble1 M at 20 °C, clear, colorless
氯chloride (Cl-):                       ≤50 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Al:                                   ≤5 ppm
  As:                                   ≤0.1 ppm
  Ba:                                   ≤5 ppm
  Bi:                                   ≤5 ppm
  Ca:                                   ≤10 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                    ≤50 ppm
  Li:                                   ≤5ppm                                
  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 1 M in H2O
UV absorption
  λ: 260 nm A:                          ≤0.04
  λ: 280 nm A:                          ≤0.045


品級(jí)Grade                               分子生物學(xué)級(jí)  
                                (grade for molecular biology )
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥98.0% (GC)
熔點(diǎn)Melting point                       98-100 °C
DNase, RNase, and protease,             none detected

品級(jí)Grade                               細(xì)胞培養(yǎng)級(jí)  
                                (cell culture tested)
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥98.0% (GC)
熔點(diǎn)Melting point                       98-100 °C
細(xì)胞培養(yǎng)試驗(yàn)Cell culture test           PASS

品級(jí)Grade                               植物細(xì)胞培養(yǎng)級(jí)  
                                 (plant cell culture tested)
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥98.0% (GC)
熔點(diǎn)Melting point                       98-100 °C
植物細(xì)胞培養(yǎng)試驗(yàn)Plant Cell Culture Test Pass

貯存:
貯存  室溫保存
上海紫一試劑廠   ? 2025 All Rights Reserved      備案號(hào):滬ICP備19037119號(hào)-1     
網(wǎng)站地圖:
試劑CAS試劑分類(lèi)試劑產(chǎn)品實(shí)驗(yàn)儀器耗材分類(lèi)實(shí)驗(yàn)儀器耗材新聞資訊
   滬公網(wǎng)安備 31012002003055號(hào)