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POPSO Dihydrate CAS 68189-43-5 Purity >99.0% (Titration) Biological Buffer UltraPure

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of POPSO Hydrate (CAS: 68189-43-5) with high quality, commercial production. Welcome to order. Please contact: alvin@ruifuchem.com
Chemical Name POPSO Hydrate
Synonyms Piperazine-1,4-bis(2-Hydroxypropanesulfonic Acid) Dihydrate; Piperazine-N,N'-bis(2-Hydroxypropanesulfonic Acid) Dihydrate
CAS Number 68189-43-5
CAT Number RF-PI1678
Stock Status In Stock
Molecular Formula C10H22N2O8S2• xH2O
Molecular Weight 362.42 (Anhydrous Basis)
Melting Point 320℃
Absorbance 260nm <0.15 (1mol/L, 1mol/L NaOH)
Brand Ruifu Chemical
Item Specifications
Appearance White Crystalline Powder
Purity / Analysis Method >99.0% (Titration by NaOH, Calcd. on Anhydrous Basis)
Water (by Karl Fischer) <10.0%
Useful pH Range 7.2~8.5
pKa(25℃) 7.8
Solubility (Color) Colorless
Solubility (Turbidity) Clear to Slightly Hazy at 10 g plus 40 ml of 1N NaOH
Heavy Metals (as Pb) <5ppm
Iron (Fe) <5ppm
Chloride (Cl) <0.20%
Sulfate (SO4) <0.05%
Zinc (Zn) <0.005%
Sodium (Na) <0.10%
Calcium (Ca) <0.005%
Copper (Cu) <0.005%
Infrared Spectrum Conforms to Structure
Shelf Life 24 Months
Test Standard Enterprise Standard
Usage Biological Buffer; Good's Buffer Component for Biological Research
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture. POPSO Hydrate (CAS: 68189-43-5) is a zwitterionic biological buffer, often used as a buffering agent in biological and biochemical research. POPSO Hydrate buffer is prepared by adding NaOH to a solution of free acid. POPSO is categorized as a Good's buffer. POPSO buffer is partly degraded on autoclaving. Used to prepare a stain for rapid reversible detection of protein bands on cellulose acetate membranes. Used for staining proteins after electrophoresis.

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