品名 | 規(guī)格 | 包裝 | 單價 | 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,99.5% | 100g | 748元 | |
D-山梨醇 | 用于細胞培養(yǎng),≥98% | 1kg | 418元 | |
D-山梨醇 | 用于分子生物學, ≥98% | 1kg | 330元 | |
D-山梨醇 | AR | 500g | 132元 | |
D-山梨醇 | AR | 100g | 55元 |
品級Grade 超純級
(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
灼燒殘渣Residue 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Grade 分子生物學級
(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Melting point 98-100 °C
DNase, RNase, and protease, none detected
品級Grade 細胞培養(yǎng)級
(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Melting point 98-100 °C
細胞培養(yǎng)試驗Cell culture test PASS
品級Grade 植物細胞培養(yǎng)級
(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Melting point 98-100 °C
植物細胞培養(yǎng)試驗Plant Cell Culture Test Pass
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