Manufacturer Provide Medicine Grade CAS9050-31-1 Hydroxypropyl Methylcellulose Phthalate HP55
Introduction
Name: Hydroxypropyl Methylcellulose Phthalate
C.A.S NO. : 9050-31-1
Chemical name: HPMCP;HYDROXYPROPYL METHYL CELLULOSE PHTHALATE;HYDROXYPROPYL METHYLCELLULOSE PHTHALATE 50;HYDROXYPROPYL METHYLCELLULOSE PHTHALATE 55;
Assay (%)(HPLC, Basis on drying):99%
Molecular formula: C14H16N4
Appearance: White powder
Melting Point :>145 °C (dec.)(lit.)
Density :0.6 g/mL at 25 °C(lit.)
Storage Condition: Keep in a cool and dry place
Hydroxypropyl methylcellulose Phtahlate is an excellent enteric film coating material.Mainly used as tablets,granules etc.The enteric coating material gentle release reinforcing material,enteric-coated capsules and microencapsulation matrix adhesives,implants,gradient release system,taste masking agents,microspheres,oral membrane,such as preparation of solid dispersions,the release rate and the PH value of the related.
| Grade Items | HP55 | HP55S |
| Apparent viscosity(Mpa.s) | 32-48 | 136-204 |
| Loss on drying | not more than 5.0% |
| Residue on ignition | not more than 0.2% |
| Chloride | not more than 0.07% |
| Arsenic | not more than 2ppm |
| heavy metals | not more than 0.001% |
| Free phthalic acid | not more than 1.0% |
| Phthalyl content | 27.0-35.0% |
| Methoxyl content | 18.0-22.0% |
| Hydroxypropyl content | 5.0-9.0% |
China
