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- Product Name.:Tetrahydrophthalic Anhydride
- CAS No: 935-79-5;85-43-8
- Weight: 152.15
- Formula: C8H8O3
- Melting Point: 98-102℃
- Boiling Point: 305.57°C at 760 mmHg
- Density: 1.289g/cm 3
Puyang Guangming Chemicals Co., Ltd. is China's largest N-methyl pyrrolidone series product specialized manufacturer, but also the high-tech enterprise who can produce the only capacitance level (99.9% min) 纬-butyrolactone (GBL).
The company uses 1,4 - butanediol dehydrogenation process route to 纬-butyrolactone (GBL) for the intermediate to produce pyrrolidone series products as the main body, N-methyl-pyrrolidone as the leading products. The production and sale of 纬-butyrolactone (GBL), N-me...
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