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General Purpose 4-Ply Mask

Discontinued, Item is no longer available
Item #: ASGPMASK 
PR1MA HEPES Sodium Salt

PR1MA  HEPES, Sodium Salt [N-(2-Hydroxyethyl) piperazine-N'-(2-ethanesulfonic acid)]

Common Name: N-(2-Hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid)
CAS Number: 75277-39-3
Molecular Weight: 260.3
Chemical Formula: C8H17N2O4SNa
Solubility: Water
Storage Temp: Room Temperature

  • pKa (20°C): 7.45-7.65
  • pH Range: 6.8-8.2

Research or further manufacturing use only, not for food or drug use.

  • Appearance: White crystalline powder
  • Assay (Titration, dried basis):  98.0 %
  • Chloride (Cl):  0.1 %
  • Heavy Metals (as Pb):  1 ppm
  • Loss on Drying @ 105 oC, 3hrs:  2.0 %
  • pH (1% aqueous @ 25 oC): 9.4 - 11.0
  • pKa @ 20°C: 7.45 - 7.65
  • Solubility (1M Solution in H2O): Clear, complete and colorless
  • UV Absorbance @ 250nm 1M:  1.0

  

PR1MA™ HEPES, Free Acid

[N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]
Item#:
ASHEPESFA
 
SKU Number Color Size Qty Price Quantity Add to Cart
GPMASK-2500 Blue 1 size fits all 50 boxes of 50 masks
340.00
Each
  Item is no longer available.  
GPMASK-50 Blue 1 size fits all 1 Box of 50 Masks
34.00
Each
  Item is no longer available.  
General Purpose Mask
General Purpose 4-Ply Mask
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