HP55

CAS number:

Molecular formula:

molecular weight:

Chemical structure:

ProductHydroxypropyl Methylcellulose Phthalate HP55
Shelf life
2 years
TestsStandard USP32
Result
AppearanceWhite or almost white  granular
solid,odorless,tasteless
White powder
IdentificationCompliesConforms
Viscosity32-48mpa.s43mpa.s
Loss on drying≤5.0%3.4%
Residue on ignition≤0.2%0.02%
Chlorides≤0.07%<0.07
Heavy metals≤10PPM<10PPM
Free Phthalic Acid≤1.0%0.4%
Esterification percent27.0-35.0%34.3%
ConclusionIt conforms to USP32.