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| 10.Pyrazine-2-Carboxylic acid |
structural formula:
mp:224c°(decompn)
Appearance: white power or niddle crystal
Package: 25KG to each paper barrel.
|
| 11.Pyrazine-2,3-dicarboxylic anhydride |
structural formula:
mp:218-220c°
Appearance: white power or niddle crystal
Package: 25KG to each paper barrel.
|
| 12.Pyrazine-3-Carboxylamide-2-Carboxylic acid ammonium |
structural formula:
mp:183c°(decompn)
Appearance: Slightly yellow power crystal
|
| 13. 3,5-dimethyoxy phenyl hydroxide |
structural formula:
mp:34-36c°
Appearance:slightly brown solid
|
| Total 4 pages ,current page 4,Pervious |
