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Polymethylene polyphenyl polyisocyanate Isocyanic acid, polymethylenepolyphenylene ester 9016-87-9
Products: | Polymethylene polyphenyl polyisocyanate |
Cas No.: | 9016-87-9 |
Molecular Formula: | C8H7NO2 |
Molecular Weight: | 149.14 |
Assay: | 99% |
Molecular Structure: |
Category | Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug |
Standard | Medical standard |
Shelf life | 2 years |
Storage | should be stored in a well-closed container at low temperature, keep away from moisture, heat and light. |
Test Item | Standard: USP |
Identification |
IR spectrum similar to that of RS |
HPLC retention time similar to that of RS |
|
Related substance |
Total impurities: NMT0.3% |
Single impurity: NMT0.1% |
|
Heavy metals |
NMT 10ppm |
Loss on drying |
NMT0.5% |
Residue on ignition |
NMT0.1% |
Assay |
98.5%-101.0% |
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