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中文名称英文名称CAS 编号规格目录价所属品牌订货号
α-乳糖α-Lactose monohydrate5989-81-11KG875.00SIGMAL8783
α-乳糖α-Lactose monohydrate5989-81-15KG3,600.00SIGMAL8783
品牌SIGMA
产品名称 α-乳糖 : α-Lactose monohydrate ——【产品编号:SIGMA-L8783】
CAS编号5989-81-1
别名β-D-Gal-(1→4)-α-D-Glc 4-O-β-D-Galactopyranosyl-α-D-glucose,Milk sugar,α-D-乳糖单水合物
级别生化级
纯度&分析BioXtra, ≥99% total lactose basis (GC)
Tips一种天然二糖化合物,是从牛奶中提取的,由右旋糖和半乳糖组成的,味微甜,本品水中易溶,微溶于醇, 氯仿或乙醚中不溶。
分子式C12H22O11 · H2O
分子量360.31
储存条件常温避光保存。
性质
product line BioXtra
assay ≥99% total lactose basis (GC)
impurities ≤0.01% Phosphorus (P)
  ≤0.1% Insoluble matter
ign. residue ≤0.1%
solubility H2O: soluble1 M, clear, colorless
anion traces chloride (Cl-): ≤0.05%
  sulfate (SO42-): ≤0.05%
cation traces Al: ≤0.0005%
  Ca: ≤0.005%
  Cu: ≤0.0005%
  Fe: ≤0.0005%
  K: ≤0.02%
  Mg: ≤0.0005%
  NH4+: ≤0.05%
  Na: ≤0.005%
  Pb: ≤0.001%
  Zn: ≤0.0005%
原产地美国
描述
APPEARANCE WHITE POWDER
SOLUBILITY COMPLETE COLORLESS (1 M IN WATER)
AMMONIA CONTENT < OR = 0.05%
RESIDUE ON IGNITION < OR = 0.1%
CHLORIDE < OR = 0.05%
SULFATE < OR = 0.05%
INSOLUBLE MATTER < OR = 0.1%
ALUMINUM < OR = 0.0005%
CALCIUM < OR = 0.005%
COPPER < OR = 0.0005%
IRON < OR = 0.0005%
LEAD < OR = 0.001%
MAGNESIUM < OR = 0.0005%
PHOSPHORUS < OR = 0.01%
SODIUM < OR = 0.005%
ZINC < OR = 0.0005%
POTASSIUM < OR = 0.02%
PURITY BY GAS CHROMATOGRAPHY > OR = 99% TOTAL LACTOSE
  < OR = 4% BETA-LACTOSE
供货状态True
参考文献N/A
类型BSZH 有机化学试剂
安全信息
个人防护装备 Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
WGK德国 3