CEPHALEXIN CEFALEXIN compact CEPHALEXIN
1. ISO AVALIABLE ;
2. IN STOCK
3. FAST REPLY
QUALIFED ; EFFICIENCY; RESPONSIBLE
ITEMS |
SPECIFICATION |
RESULTS |
Appearance |
White or almost white crystalline powder |
Almost white crystalline powder |
Identification |
The IR spectrum conforms to that of reference standard. |
Complies |
pH |
4.0 ~5.5 |
4.9 |
Specific optical rotation |
+149° ~ +158° |
+154° |
Related Substances |
7-ADCA NMT 1.0% |
N.D |
Any other impurity NMT 1.0% |
0.11% |
|
Total impurities NMT 3.0% |
0.16% |
|
Methanol |
NMT0.3% |
0.01% |
Acetone |
NMT0.3% |
0.03% |
Methylene chloride |
NMT 0.06% |
N.D |
N,N-Dimethylformamide |
NMT 0.088% |
N.D |
Water content |
4.0% ~ 8.0% |
5.2% |
Sulfated ash |
NMT0.2% |
0.04% |
Assay |
95.0% ~102.0% (anhydruos substance) |
99.3% |
Bulk density |
For information only |
0.63g/ml |
Tapped density |
For information only |
0.89g/ml |
Remarks |
N,N-Dimethylaniline in this process in not utilized |
|
Conclusion: The product complies with specification BP2021. |
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