HEPES

 HEPES Supplier and Distributor of Bulk, LTL, Wholesale products

HEPES

CAS# 7365-45-9
Formula: C8H18N2O4S
Synonyms: N- (2-Hydroxy ethyl)-Piperazine ethane Sulfonic acid, 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid

Hepes is a zwitterionic biological buffer often used in biological and biochemical research.

Product Specifications

Molecular Weight   238.30
Appearance   White Powder
Density   1.07 g/cm3
Assay   ≧ 99.5%
Melting Point   234 - 238 °C
Solubility   Clear and Colorless (1M in H2O)
Loss on drying   ≦ 0.5%
pKa (25℃)   7.45 – 7.65
pH   5.0 – 6.5 (5% in H2O)
UV (A260nm)   ≦ 0.05 Abs (1M in H2O)
UV (A280nm)   ≦ 0.04 Abs (1M in H2O)
UV (A405nm)   ≦ 0.01 Abs (1M in H2O)
UV (A290nm)   ≦ 0.05 Abs (33% in H2O)
Salfated Ash   ≦ 0.1%
Color   <25 Pt-Co unit (33% in H2O)
IR   In conformance with known standard
Heavy Metals (as Pb)   ≦ 5 ppm
Class BIOLOGICAL BUFFERS
Market   Pharmaceutical

Additional Information

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