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Doxycycline hyclate Doxycycline 24390-14-5
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Name:Doxycycline hyclate
Synonyms :4-(DIMETHYLAMINO)-1,4,4 ALPHA,5,5 ALPHA,6,11,12 ALPHA-OCTAHYDRO-3,5,10,12,12 ALPHA-PENTAHYDROXY-6-METHYL-1,11-DIOXO-2-NAPHTHACENECARBOXAMIDE, MONOHYDRATE
Molecular Formula: C22H26N2O9
Molecular Weight:462.45
CAS Registry Number:24390-14-5
Purity: 85.0-99.8%
Storage: Keep in dry and cool condition
COA:
items |
specifications |
results |
appearance |
yellow crystalline powder |
complies |
ph value |
2.0 ~ 3.0 |
2.4 |
specific optical rotation |
-105°~-120° |
-110° |
specific absorbance |
at 349nm: 300 ~ 335 |
317 |
light absorbing impurities |
at 490nm ≤0.07 |
0.03 |
related substances
|
6 – epidoxycycline ≤2.0% |
complies |
methacycline ≤2.0% |
complies |
|
disregard limit ≤0.1% |
complies |
|
any individual impurity ≤0.5% |
complies |
|
ethanol |
4.3% ~ 6.0%(m/m) |
4.8% |
heavy metals |
≤50ppm |
complies |
water |
1.4% ~ 2.8% |
2.0% |
sulphated ash |
≤0.4% |
0.08% |
assay |
95.0% ~ 102.0% of c22h25cin2o8 (anhydrous,ethanol-free substance) |
98.3% |
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