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3,3′,4,4′-Biphenyltetracarboxylic dianhydride/BPDA CAS 2420-87-3
3,3′,4,4′-Biphenyltetracarboxylic dianhydride Quick Details
- CAS No.: 2420-87-3
- Molecular Formula: C16H6O6
- Molecular Weight: 294.22
- Appearance: Crystalline powder
3,3′,4,4′-Biphenyltetracarboxylic dianhydride Specification
| Item | Specifications |
| Identification | A.H-NMR:Comply with the structure |
| B.LC-MS:Comply with the structure | |
| C.The IR spectrum of sample should be identical with that of reference standard; | |
| D.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. | |
| Loss on drying | ≤0.5% |
| Heavy metals | ≤10 ppm |
| Sulphated ash | ≤0.2%, determined on 1.0 g. |
| Related substances | Unspecified impurities: for each impurity ≤0.10% |
| Total Impurity ≤1.0% | |
| Purity | ≥99.0% |
| Assay | 99.0%~101.0% (anhydrous substance). |
3,3′,4,4′-Biphenyltetracarboxylic dianhydride Application
Used in the production of polyimide products and their composite materials, pharmaceutical intermediates
Package
25kg/Drum
Storage
Store in a cool, well-ventilated place.
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