PPH . hydrochloride

Product Specifications

Product Name Alternative

1-Hydroxy-4-phosphono-oxy-2,2,6,6-tetramethylpiperidine . HCl

Certification

RUO

Purification

≤0.1% paramagnetic impurities (EPR)

Stability

As indicated on product label or CoA when stored as recommended.

Purity

≥99% (EPR)

Solubility

Soluble in DMSO, 100% ethanol, methanol or water.

Molecular Formula

C 9 H 20 NO 5 P . HCl

Molecular Weight

253.2 . 36.5

Shipping Conditions

Blue Ice

Storage Conditions

-20°C

Notes

The stabilized acid form of PPH is not well soluble at neutral pH (~0.1-0.01%) . It is recommended to adjust pH to 7.4 for higher solubility. Dissolve PPH in oxygen-free buffers at neutral pH and use 1M NaOH to adjust pH to 7.4. Solubility is 1% in water, 0.8% in methanol or 0.5% in ethanol at pH 7.4. Solubility is 3% in DMSO at pH 7.4 (first add NaOH to PPH crystals then DMSO) . Higher concentrations require further pH adjustment using NaOH.