Product Name: HEPES
Price: 1 US$
Detail: CERTIFICATE OF QUALITY
Product: HEPES
4-(2-Hydroxyethyl)-1-piperazineeth anesulfonic acid
Grade: High Purity Grade
Lot: OG1606A
Code: 145570
CAS-No: [7365-45-9]
Mol. Formula: C8H18N2O4S
Mol. Weight: 238.30
Packing: 25 Kg/Drum


Item Specifications Results

Assay(Titration, Dry basis) ≥99.5% 99.8%
Solubility 1M water Clear,Colorless solution Complies
pH 1%water solution 25℃ 4.8~5.6 5.3
Water ≤0.5% 0.21%
Infrared Complies Complies
Residue on ignition ≤0.1% Complies
A280,0.1M Water ≤0.035 0.025
A260,0.1M Water ≤0.045 0.030
Appearance White crystalline powder complies