China (Mainland)
Diamondsupplier 
1.high purity
2.consistent quality
3.competitive price
4.fast shipping
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appearance |
white or almost white powder |
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solubility |
freely soluble in methylene chloride soluble in acetone and in methanol .sparingly soluble in hexane and in water |
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identification |
ir |
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hplc |
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melting range |
198~203℃ |
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water |
≤0.2% |
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residue on ignition |
≤0.1% |
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heavy metals |
≤200ppm |
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specific rotation |
-187°~ -193° |
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related substance |
7-hydroxymethyldrospirenone ≤0.1% |
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5-hydtoxydros- pirenone (at 195nm) ≤0.1% |
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17-ke1o drospirenone ≤0.1% |
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drospirenone 6-enen≤0.1% |
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drospirenone related compound a≤0.1% |
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6,7-epidrospirenone ≤0.1% |
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6,7-desmethylence drospirenone ≤0.1% |
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15-methy drospirenone ≤0.1% |
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7-methylence drospirenone ≤0.1% |
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7-methylence 17- drospirenone ≤0.1% |
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7-hydroxymethyl3,5(6)-diene drospirenone ≤0.1% |
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any unspecified impurity ≤0.1% |
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total impurities ≤0.4% |
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content |
98.0%~102.0% |
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organic impurities |
1,2-dimethoxyethane≤0.2% |
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disopyl other ≤0.1% |
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residual solvents |
methanol≤3000ppm |
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methylene choride ≤600ppm |
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isopropyl ether≤1000ppm |
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terahydroluran≤720ppm |
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isopropyl scelate≤5000ppm |
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tnethylamine ≤320ppm |
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pycidine≤200ppm |
|
appearance |
white or almost white powder |
|
|
solubility |
freely soluble in methylene chloride soluble in acetone and in methanol .sparingly soluble in hexane and in water |
|
|
identification |
ir |
|
|
hplc |
||
|
melting range |
198~203℃ |
|
|
water |
≤0.2% |
|
|
residue on ignition |
≤0.1% |
|
|
heavy metals |
≤200ppm |
|
|
specific rotation |
-187°~ -193° |
|
|
related substance |
7-hydroxymethyldrospirenone ≤0.1% |
|
|
5-hydtoxydros- pirenone (at 195nm) ≤0.1% |
||
|
17-ke1o drospirenone ≤0.1% |
||
|
drospirenone 6-enen≤0.1% |
||
|
drospirenone related compound a≤0.1% |
||
|
6,7-epidrospirenone ≤0.1% |
||
|
6,7-desmethylence drospirenone ≤0.1% |
||
|
15-methy drospirenone ≤0.1% |
||
|
7-methylence drospirenone ≤0.1% |
||
|
7-methylence 17- drospirenone ≤0.1% |
||
|
7-hydroxymethyl3,5(6)-diene drospirenone ≤0.1% |
||
|
any unspecified impurity ≤0.1% |
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|
total impurities ≤0.4% |
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|
content |
98.0%~102.0% |
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|
organic impurities |
1,2-dimethoxyethane≤0.2% |
|
|
disopyl other ≤0.1% |
||
|
residual solvents |
methanol≤3000ppm |
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|
methylene choride ≤600ppm |
||
|
isopropyl ether≤1000ppm |
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|
terahydroluran≤720ppm |
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|
isopropyl scelate≤5000ppm |
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|
tnethylamine ≤320ppm |
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pycidine≤200ppm |