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Explore the broadest selection of analytical reference materials and proficiency testing (PT) from the leading brands in certified and analytical reference materials: Spex, NSI, HPS, and Chiron.

Our harmonized product development and custom capabilities are tailored to bring you innovative products to help meet your unique application needs.

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SKU: 686H

Methacrylonitrile

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 681-5K

Ethyl acetate

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  • Brand NSI
  • Matrix Methanol
  • Concentration 5000 ug/mL
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 67-A

Di-n-octyl phthalate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 66-A

Di-n-butyl phthalate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 65-A

Butyl benzyl phthalate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 659L

Isobutyl alcohol (Isobutanol)

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 654-M

Disulfoton

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 654-HA

Disulfoton

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 64-A

bis(2-Ethylhexyl)phthalate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 62-M

Pentachlorophenol

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 62HM

Pentachlorophenol

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
  • Top rated
SKU: 625-T2

GC/MS Test Mix, 250 µg/mL

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  • Brand Spex
  • Matrix Methylene Chloride
  • Concentration 250 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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