| Quantity: | |
|---|---|
2421-28-5
bosschem
2421-28-5
Product Description
Product name: 3,3',4,4'-Benzophenonetetracarboxylic dianhydride
CAS：2421-28-5
MF： C17H6O7
MW： 322.23
EINECS:219-348-1
Specifications :
| EST | Specification | TARGET VALUE | |
| Min | Max | ||
| Infrared spectrum | Conforms to Structure | ||
| Ignition residue | 0% | 2.00% | 2.00% |
| Appearance | yellow powder,crystals and/or chunks | ||
| Melting point | 223 °C | 229 °C | 229 °C |
| Purity(Morpholine Titration by HCl) | 96% | 104.50% | 104.50% |
