品名 | 规格 | 包装 | 单价 | 货期 |
蔗糖 | >99.9% | 250g | 148.5元 | 现货 |
蔗糖 | ACS | 500g | 82.5元 | 现货 |
蔗糖 | AR | 500g | 41.8元 | 现货 |
蔗糖 | 超纯级 纯度≥99.9%;RNase,DNase Free | 500g | 317.9元 | 咨询客服 |
ACS级
项目名称 ACS Grade
比旋光度[α]25℃D Specific rotation +66.3°- +66.8°
水不溶物Insoluble matter ≤0.005%
干燥失重Loss on drying ≤0.03%
灼烧残渣Residue after ignition ≤0.01%
可滴定酸Titrable acid ≤0.0008meq/g
氯化物(Cl)Chloride ≤0.005%
硫酸盐和亚硫酸盐
(以SO4计)Sulfate and sulfite ≤0.005%
重金属(以Pb计)Heavy metals ≤5ppm
铁(Fe)Iron(Fe) ≤5ppm
还原糖Invert sugar ≤0.05%
品级Grade 分子生物学级
(for molecular biology, ≥99.5% (HPLC))
含量assay ≥99.5% (HPLC)
DNA酶DNases, none detected
RNA酶RNases, none detected
不溶物insoluble matter, passes filter test
磷酸酶phosphatases, none detected
蛋白酶proteases, none detected
比旋光度Specific rotation [a]20/D 66.3 to 66.8°, c = 26% in H2O
游离酸free acid ≤0.0008 meq/g
水不溶物water insoluble matter ≤0.005%
转化糖invert sugar ≤0.05%
重金属heavy metals (as Pb) ≤5 ppm
灼烧残渣ign. residue ≤0.01% (as SO4)
干燥损失loss on drying ≤0.03% , 105 °C
熔点mp 185-187 °C
水溶性solubility H2O: soluble0.1 g/mL, clear, colorless
氯chloride (Cl-): ≤50 ppm
硫酸根sulfate (SO42-): ≤50 ppm
λ 1 M in H2O
UV absorption
λ: 260 nm A: ≤0.11
λ: 280 nm A: ≤0.08
品级Grade 细胞和昆虫细胞培养级
(for cell culture , forinsect cell culture)
外观Appearance 白色结晶
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥99.5% (GC)
水溶性solubility H2O: soluble500 mg/mL , clear, colorless
比旋光度Specific rotation [a]20/D 66.3 to 66.8°, c = 26% in H2O
UV absorption
λ: 260 nm A: ≤0.15 (100% SOLUTION)
λ: 280 nm A: ≤0.15 (100% SOLUTION)
重金属heavy metals (as Pb) ≤ 0.0005% (ASLEAD)
Cell culture test PASS
Insect cell culture test PASS
品级Grade 植物细胞培养级
(用于植物细胞培养)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥99.5% (GC)
熔点Melting point 185°C - 187°C
水溶解试验solubility in water 5GM/10ML water,Clear colorless to faint yellow solution
重金属heavy metals (as Pb) ≤ 0.0005% (ASLEAD)
UV absorption
λ: 260 nm A: ≤0.15 (100% SOLUTION)
λ: 280 nm A: ≤0.15 (100% SOLUTION)
植物细胞培养测试PLANT CELL CULTURE PASS
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