AmericanBio:HEPES

HEPES

N-[2-hydroxyethyl] piperazine-N'-[2-ethanesulfonic acid]

Specifications

CAS 7365-45-9
Grade ultra pure
Formula weight 238.31
Formula C8H18N2O4S
Physical description white crystalline powder
Unit Min Max
Appearance (White Crystalline Powder) Pass 0 0
Identification (IR) Pass 0 0
Iron ppm 0 5
Lead (Pb) ppm 0 5
Protease (None Detected) Pass 0 0
Purity (By NaOH Titration) % 99.5 100
Rnase (None Detected) Pass 0 0
Uv Absorbance At 280nm nm 0 0.05
Uv Absorbance At 290nm (33% W/w) nm 0 0.05
Uv Absorbance At 260nm nm 0 0.05
Water (Kf) % 0 0.1
Cell Culture Test Pass 0 0
DNAse, Exonuclease Detection Pass 0 0
Endotoxin Level (<0.1 Eu/mg) Pass 0 0
Expiration Verification (1 Yr. Minimum) Pass 0 0
Nickase, Endonuclease Detection Pass 0 0
Solubility (Clear, Colorless) Pass 0 0
Total Aerobic Microbial Count <100CFU/g Pass 0 0

Notes & Applications

biological buffer
pKa (25°C): 7.55 ± 0.2
store at 15°C to 35°C
AB00892-00100 :: 100g $90.24
AB00892-00500 :: 500g $290.30
AB00892-01000 :: 1kg $414.90