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PRODUCT NAME: Hydroxypropyl Methyl Cellulose E4 /HPMC E4
MFG DATE: 25TH SEP, 2024
EXP DATE: 25TH SEP, 2026
| Items | Standard | Result | |
| Character | 1.This product is white or quasi-white fibrous or granular powder. | Conformity | |
| 2.Almost insoluble in anhydrous ethanol, ether or acetone; Swelling in cold water to form a clear or slightly turbid colloid solution. | Conformity | ||
| Identify | 1.Should be blue-green ring | Conformity | |
| 2.A flexible film should be formed | Conformity | ||
| 3.Flocculation temperature ≥50℃ | Conformity | ||
| Detection | pH | 5.0-8.0 | 6.0 |
| Viscosity （ mPa·s） | Value＜600: 80%-120% Value ≥600: 75%-140% | 4.0 | |
| Insoluble substance in water （%） | ≤0.5 | 0.3 | |
| Loss on Drying （%） | ≤5.0 | 1.8 | |
| Residue on Ignition （%） | ≤1.5 | Conformity | |
| Heavy Metals ppm | ≤10 | Conformity | |
| Arsenic （%） | ≤0.0002 | Conformity | |
| Contents | Methoxy （%） | 27.0-30.0 | 28.9 |
| Hydroxypropoxy （%） | 7.0-12.0 | 8.8 | |
| Microorganism | TAMC （ cfu/g） | ≤1000 | Conformity |
| TYMC（cfu/g） | ≤100 | Conformity | |
| Escherichia | Not detectable | Conformity | |
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