Advanced
Order Entry
China
ContactUsLinkComponent
 
 
 
 
 
n-Heptane ≥99.0% （通过GC，校正水含量） 用于HPLC / UHPLC, 用于分光光度法, J.T.Baker®
 :  Avantor
 undefined
undefined
undefined
 
 
 
 
n-Heptane ≥99.0% （通过GC，校正水含量） 用于HPLC / UHPLC, 用于分光光度法, J.T.Baker®
 :  Avantor
 

Some Products May Appear Restricted

To ensure a smooth and speedy checkout, please log in to your account. Some items may show as restricted simply because you're not logged in.

If you do not have an account, you can register using our registration webform (https://www.avantorsciences.com/us/en/login/register)

 

If you're still seeing restrictions after logging in, certain products—like chemicals or medical devices—require additional account verification steps to be able to place an order. Some items may additionally require a specific license or customer documentation;  additional documentation will be requested for these items prior to shipment. 

 

  • For Laboratory,Research,or Manufacturing Use:
    = 0.01
  • Ultraviolet Absorbance (1.00-cm cell vs. water) - 400-254 nm:
    ≤0.01
  • Ultraviolet Absorbance (1.00-cm cell vs. water) - 220 nm:
    ≤0.10
  • Ultraviolet Absorbance (1.00-cm cell vs. water) - 210 nm:
    ≤0.40
  • Ultraviolet Absorbance (1.00-cm cell vs. water) - UV Cut-off, nm:
    ≤197
  • Fluorescence Trace Impurities, measured as Quinine Base - at 450 nm Emission:
    ≤0.2 ppb
  • Fluorescence Trace Impurities, measured as Quinine Base - at Emission Maximum for Impurities:
    ≤1.0 ppb
  • Assay (by GC, corrected for water):
    ≥99.0 %
  • Residue after Evaporation:
    ≤2.0 ppm
  • Substances Darkened by H₂SO₄:
    Passes Test
  • Water (by KF, coulometric):
    ≤0.01 %