提供一级137片内射高清视频,www.一区,久久内射,一区二区三区欧美

<rp id="pc8i0"></rp>

<var id="pc8i0"></var>
    1. PRODUCTS
      Isopentyl alcohol
      Product name: Isopentyl alcohol
      English name: Isopentyl alcohol
      CAS RN: 123-51-3
      Molecular formula: C5H12O
      Molecular weight: 88.15
      Properties: Colorless to yellowish transparent liquid
      Quality index:
      Index name Index
      Content % ≥98.0
      Boiling range(126-132℃)% ≥95.0
      Nonvolatile matter % ≤0.002
      Moisture% ≤0.2
      Use: It can be used in organic synthesis, edible essence, etc.
      Structural formula:

      Back