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Shunfeng Chemical
Dihydroxypropyltheophylline
basic information
Categories:
Dihydroxypropyltheophylline
heat:
交货期:
0
最低起订量:
1
Diprophyllin
CAS#:479-18-5 （Molecular Formula）:C10H14N4O4 （Molecular Wt.）：254.24
|
Items |
Standard |
|
Characteristics |
A white crystalline powder |
|
Identification |
Positive reaction |
|
Melting range |
160～164℃ |
|
Loss on drying |
≤0.5% |
|
PH |
5.0～7.5 |
|
Limit of theophylline |
≤0.5% |
|
Heavy metals |
≤20ppm |
|
Residue on ignition |
≤0.15% |
|
Related compounds |
≤1.0% |
|
Sulfate |
≤0.010% |
|
Organic volatile impurities |
Conform to the EP7.0、BP2010、USP34 |
|
Assay |
98.5~101.0%（BP/EP） |
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